Inserting a new row in my table not working - java

Main
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
import javax.persistence.EntityManager;
import model.Companie;
import repository.CompanieRepository;
import java.util.UUID;
public class Main
{
private static final SessionFactory sessionFactory;
private static final EntityManager entityManager;
static
{
Configuration configuration = new Configuration()
.configure("hibernate.cfg.xml")
.addAnnotatedClass(Companie.class);
sessionFactory = configuration.buildSessionFactory();
entityManager = sessionFactory.createEntityManager();
}
public static void main(String[] args)
{
CompanieRepository companieRepository = new CompanieRepository(entityManager);
Session session = sessionFactory.openSession();
Companie comp = new Companie(26, "some name", "some another thing", "that thing");
entityManager.persist(comp);
session.close();
System.out.println();
}
}
Company class
package model;
import lombok.Data;
import org.hibernate.annotations.GenericGenerator;
import javax.persistence.*;
import java.util.UUID;
#Entity
#Data
public class Companie
{
// #Id
// #GeneratedValue(generator = "UUID")
// #GenericGenerator(name = "id", strategy = "org.hibernate.id.UUIDGenerator")
// #Column(name = "id", updatable = false, nullable = false, columnDefinition = "BINARY(16)")
// private UUID id;
#Id
private int id;
private String nume;
#Column(name = "cod_fiscal")
private String codFiscal;
#Column(name = "nr_registru_comertului")
private String nrRegistruComertului;
public Companie()
{
}
public Companie(int id, String nume, String codFiscal, String nrRegistruComertului)
{
this.id = id;
this.nume = nume;
this.codFiscal = codFiscal;
this.nrRegistruComertului = nrRegistruComertului;
}
}
Output
"C:\Program Files\Eclipse Adoptium\jdk-17.0.1.12-hotspot\bin\java.exe" "-javaagent:C:\Program Files\JetBrains\IntelliJ IDEA 2021.2.3\lib\idea_rt.jar=49640:C:\Program Files\JetBrains\IntelliJ IDEA 2021.2.3\bin" -Dfile.encoding=UTF-8 -classpath D:\2xProjects\JavaPr\ContaApp\target\classes;C:\Users\Kentryx\.m2\repository\mysql\mysql-connector-java\8.0.25\mysql-connector-java-8.0.25.jar;C:\Users\Kentryx\.m2\repository\com\google\protobuf\protobuf-java\3.11.4\protobuf-java-3.11.4.jar;C:\Users\Kentryx\.m2\repository\org\hibernate\hibernate-core\5.6.1.Final\hibernate-core-5.6.1.Final.jar;C:\Users\Kentryx\.m2\repository\org\jboss\logging\jboss-logging\3.4.2.Final\jboss-logging-3.4.2.Final.jar;C:\Users\Kentryx\.m2\repository\javax\persistence\javax.persistence-api\2.2\javax.persistence-api-2.2.jar;C:\Users\Kentryx\.m2\repository\net\bytebuddy\byte-buddy\1.11.20\byte-buddy-1.11.20.jar;C:\Users\Kentryx\.m2\repository\antlr\antlr\2.7.7\antlr-2.7.7.jar;C:\Users\Kentryx\.m2\repository\org\jboss\spec\javax\transaction\jboss-transaction-api_1.2_spec\1.1.1.Final\jboss-transaction-api_1.2_spec-1.1.1.Final.jar;C:\Users\Kentryx\.m2\repository\org\jboss\jandex\2.2.3.Final\jandex-2.2.3.Final.jar;C:\Users\Kentryx\.m2\repository\com\fasterxml\classmate\1.5.1\classmate-1.5.1.jar;C:\Users\Kentryx\.m2\repository\javax\activation\javax.activation-api\1.2.0\javax.activation-api-1.2.0.jar;C:\Users\Kentryx\.m2\repository\org\hibernate\common\hibernate-commons-annotations\5.1.2.Final\hibernate-commons-annotations-5.1.2.Final.jar;C:\Users\Kentryx\.m2\repository\javax\xml\bind\jaxb-api\2.3.1\jaxb-api-2.3.1.jar;C:\Users\Kentryx\.m2\repository\org\glassfish\jaxb\jaxb-runtime\2.3.1\jaxb-runtime-2.3.1.jar;C:\Users\Kentryx\.m2\repository\org\glassfish\jaxb\txw2\2.3.1\txw2-2.3.1.jar;C:\Users\Kentryx\.m2\repository\com\sun\istack\istack-commons-runtime\3.0.7\istack-commons-runtime-3.0.7.jar;C:\Users\Kentryx\.m2\repository\org\jvnet\staxex\stax-ex\1.8\stax-ex-1.8.jar;C:\Users\Kentryx\.m2\repository\com\sun\xml\fastinfoset\FastInfoset\1.2.15\FastInfoset-1.2.15.jar;C:\Users\Kentryx\.m2\repository\org\projectlombok\lombok\1.18.22\lombok-1.18.22.jar Main
Jan 06, 2022 5:15:55 PM org.hibernate.Version logVersion
INFO: HHH000412: Hibernate ORM core version 5.6.1.Final
Jan 06, 2022 5:15:55 PM org.hibernate.annotations.common.reflection.java.JavaReflectionManager <clinit>
INFO: HCANN000001: Hibernate Commons Annotations {5.1.2.Final}
Jan 06, 2022 5:15:56 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
WARN: HHH10001002: Using Hibernate built-in connection pool (not for production use!)
Jan 06, 2022 5:15:56 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH10001005: using driver [com.mysql.cj.jdbc.Driver] at URL [jdbc:mysql://localhost:3306/contabilitate]
Jan 06, 2022 5:15:56 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH10001001: Connection properties: {password=****, user=clientDragos}
Jan 06, 2022 5:15:56 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH10001003: Autocommit mode: false
Jan 06, 2022 5:15:56 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl$PooledConnections <init>
INFO: HHH000115: Hibernate connection pool size: 20 (min=1)
Jan 06, 2022 5:15:56 PM org.hibernate.dialect.Dialect <init>
INFO: HHH000400: Using dialect: org.hibernate.dialect.MySQL8Dialect
Jan 06, 2022 5:15:56 PM org.hibernate.resource.transaction.backend.jdbc.internal.DdlTransactionIsolatorNonJtaImpl getIsolatedConnection
INFO: HHH10001501: Connection obtained from JdbcConnectionAccess [org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator$ConnectionProviderJdbcConnectionAccess#44784e2f] for (non-JTA) DDL execution was not in auto-commit mode; the Connection 'local transaction' will be committed and the Connection will be set into auto-commit mode.
Jan 06, 2022 5:15:56 PM org.hibernate.engine.transaction.jta.platform.internal.JtaPlatformInitiator initiateService
INFO: HHH000490: Using JtaPlatform implementation: [org.hibernate.engine.transaction.jta.platform.internal.NoJtaPlatform]
Process finished with exit code 0
I have a problem that I can't solve at all. I'm new to hibernate. I want to insert a new row in my database. The table is created, if I run it for the first time everything goes just fine with the creation of the table and the columns. After that, when I try to insert a row my database is not updated. Java is not inserting anything.
PS: I tried to insert a new row in MySQL Workbench at it worked just fine, the problem is that in Java it won't do the trick.
PSS: I tried another solution: session.save(Object o) etc. Nothing worked


Because you forget to start the transaction to do your work. You have to commit the transaction to confirm saving your changes to DB.
If you are using the native Hibernate API , the codes should look likes:
Session session = sessionFactory.openSession();
session.getTransaction().begin();
session.persist(comp);
session.getTransaction().commit();
If you are using JPA API , the codes should like likes :
EntityManager em = entityManagerFactory.createEntityManager();
em.getTransaction().begin();
em.persist(comp);
em.getTransaction().commit();


perform the transaction in hibernateUtil class by invoking the session and then commit the transaction. The changes may affected to the db.

Related

It is necessary to fill the ObservableList by taking data from the table using hibernate

It is necessary to fill the ObservableList by taking data from the table using hibernate, it turns out to be empty, the table is working, it turns out to be empty, the table works,
session open
class Main
public class Main {
private static SessionFactory sessionFactory;
private static ServiceRegistry serviceRegistry;
public static void main(String[] args) {
findAll();
}
#SuppressWarnings({"unchecked", "deprecation"})
public static ObservableList<Task> findAll() {
ObservableList<Task> observableTasks = FXCollections.observableArrayList();
Session session = getSessionFactory().openSession();
observableTasks.addAll(session.createCriteria(Task.class).list());
System.out.println("observableTasks = " + observableTasks.isEmpty()); // true empty
session.close();
return observableTasks;
}
public static SessionFactory getSessionFactory() {
Configuration configuration = new Configuration();
configuration.configure();
serviceRegistry = new StandardServiceRegistryBuilder().applySettings(configuration.getProperties()).build();
sessionFactory = configuration.buildSessionFactory(serviceRegistry);
return sessionFactory;
}
}
file hibernate.cfg.xml hibernate configuration class
<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD//EN"
"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<!-- <property name="connection.url">jdbc:sqlite:C:/Users/den/IdeaProjects/TodoListFx/TodoListFx/db/todolist.db-->
<property name="connection.url">jdbc:sqlite:C:/Users/den/IdeaProjects/TodoListFx/TodoListFx/db/todolist.db</property>
<property name="connection.driver_class">org.sqlite.JDBC</property>
<property name="hibernate.show_sql">true</property>
<property name="dialect">org.example.hibernate.dialect.SQLiteDialect</property>
<property name="hibernate.connection.autocommit">true</property>
<mapping class="org.example.test_hibernate_connect_bd.Task"/>
<mapping resource="TodoTask.hbm.xml"/>
<!-- <property name="connection.username"/> -->
<!-- <property name="connection.password"/> -->
<!-- DB schema will be updated if needed -->
<!-- <property name="hibernate.hbm2ddl.auto">update</property> -->
</session-factory>
</hibernate-configuration>
file TodoTask.hbm.xml
<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
<class name="org.example.test_hibernate_connect_bd.Task" table="todo" schema="main">
<id name="id">
<column name="id" sql-type="integer"/>
</id>
<property name="task">
<column name="task" sql-type="text"/>
</property>
<property name="time">
<column name="task_create_time" sql-type="text"/>
</property>
<property name="status">
<column name="status" sql-type="text" not-null="true"/>
</property>
</class>
</hibernate-mapping>
class Task the object itself
logs current launch
сент. 30, 2022 8:40:14 PM org.hibernate.Version logVersion
INFO: HHH000412: Hibernate Core {5.4.11.Final}
сент. 30, 2022 8:40:15 PM org.hibernate.annotations.common.reflection.java.JavaReflectionManager <clinit>
INFO: HCANN000001: Hibernate Commons Annotations {5.1.0.Final}
сент. 30, 2022 8:40:15 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
WARN: HHH10001002: Using Hibernate built-in connection pool (not for production use!)
сент. 30, 2022 8:40:15 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH10001005: using driver [org.sqlite.JDBC] at URL [jdbc:sqlite:C:/Users/den/IdeaProjects/TodoListFx/TodoListFx/db/todolist.db]
сент. 30, 2022 8:40:15 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH10001001: Connection properties: {autocommit=true}
сент. 30, 2022 8:40:15 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH10001003: Autocommit mode: true
сент. 30, 2022 8:40:15 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl$PooledConnections <init>
INFO: HHH000115: Hibernate connection pool size: 20 (min=1)
сент. 30, 2022 8:40:15 PM org.hibernate.dialect.Dialect <init>
INFO: HHH000400: Using dialect: org.example.hibernate.dialect.SQLiteDialect
сент. 30, 2022 8:40:16 PM org.hibernate.engine.transaction.jta.platform.internal.JtaPlatformInitiator initiateService
INFO: HHH000490: Using JtaPlatform implementation: [org.hibernate.engine.transaction.jta.platform.internal.NoJtaPlatform]
сент. 30, 2022 8:40:16 PM org.hibernate.internal.SessionImpl createCriteria
WARN: HHH90000022: Hibernate's legacy org.hibernate.Criteria API is deprecated; use the JPA javax.persistence.criteria.CriteriaQuery instead
observableTasks = true
project structure

I fill in the list first, because the ObservableList class inherits from extends List , then it gets the same addAll(....) methods. I fill in my ObservableList , list , which I got from the table.
class Main
package org.example;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import org.example.objects.Task;
import org.example.utils.HibernateSessionFactoryUtil;
import java.util.ArrayList;
import java.util.List;
public class Main {
public static ObservableList<Task> personList = FXCollections.observableArrayList();
public static List<Task> ist = new ArrayList<>();
public static void main(String[] args) {
findAll();
}
#SuppressWarnings({"unchecked", "deprecation"})
public static ObservableList<Task> findAll() {
ist = HibernateSessionFactoryUtil.getSessionFactory().openSession().createQuery("From Task").list();
personList.addAll(ist);
System.out.println("personList.isEmpty() = " + personList.isEmpty());
return personList;
}
}
class HibernateSessionFactoryUtil -> In this class, I create a configuration and add a class to it, with a JPA configuration
package org.example.utils;
import org.hibernate.SessionFactory;
import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
import org.hibernate.cfg.Configuration;
import org.hibernate.service.ServiceRegistry;
public class HibernateSessionFactoryUtil {
private static SessionFactory sessionFactory;
private static ServiceRegistry serviceRegistry;
public HibernateSessionFactoryUtil() {
}
public static SessionFactory getSessionFactory(){
if(sessionFactory == null){
try{
Configuration configuration = new Configuration().configure();
// here necessary class add
configuration.addAnnotatedClass(org.example.objects.Task.class);
StandardServiceRegistryBuilder builder = new StandardServiceRegistryBuilder().applySettings(configuration.getProperties());
sessionFactory = configuration.buildSessionFactory(builder.build());
} catch (Exception e) {
System.out.println("Exception !" + e);
}
}
return sessionFactory;
}
}
class Task In this class I put JPA annotations #Entity, #Id, #Column
package org.example.objects;
import javafx.beans.property.SimpleIntegerProperty;
import javafx.beans.property.SimpleStringProperty;
import javax.persistence.*;
#Entity
#Table(name = "todo", schema = "main", catalog = "")
public class Task {
private SimpleIntegerProperty id = new SimpleIntegerProperty();
private SimpleStringProperty task = new SimpleStringProperty("");
private SimpleStringProperty time = new SimpleStringProperty("");
private SimpleStringProperty status = new SimpleStringProperty("");
public Task() {
}
#GeneratedValue(strategy = GenerationType.IDENTITY)
#Id
#Column(name = "id", nullable = false)
public int getId() {
return id.get();
}
public SimpleIntegerProperty idProperty() {
return id;
}
public void setId(int id) {
this.id.set(id);
}
#Basic
#Column(name = "task", nullable = false, length = -1)
public String getTask() {
return task.get();
}
public SimpleStringProperty taskProperty() {
return task;
}
public void setTask(String task) {
this.task.set(task);
}
#Basic
#Column(name = "task_create_time", nullable = false, length = -1)
public String getTime() {
return time.get();
}
public SimpleStringProperty timeProperty() {
return time;
}
public void setTime(String time) {
this.time.set(time);
}
#Basic
#Column(name = "status", nullable = true, length = -1)
public String getStatus() {
return status.get();
}
public SimpleStringProperty statusProperty() {
return status;
}
public void setStatus(String status) {
this.status.set(status);
}
#Override
public String toString() {
return "Task{" +
"id=" + id +
", task=" + task +
", time=" + time +
", status=" + status +
'}';
}
}
the result I wanted to see is that the list is not empty
окт. 01, 2022 8:33:53 PM org.hibernate.Version logVersion
INFO: HHH000412: Hibernate Core {5.4.11.Final}
окт. 01, 2022 8:33:54 PM org.hibernate.annotations.common.reflection.java.JavaReflectionManager <clinit>
INFO: HCANN000001: Hibernate Commons Annotations {5.1.0.Final}
окт. 01, 2022 8:33:54 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
WARN: HHH10001002: Using Hibernate built-in connection pool (not for production use!)
окт. 01, 2022 8:33:54 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH10001005: using driver [org.sqlite.JDBC] at URL [jdbc:sqlite:C:/Users/den/IdeaProjects/TestHibernate/db/todolist.db]
окт. 01, 2022 8:33:54 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH10001001: Connection properties: {autocommit=true}
окт. 01, 2022 8:33:54 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH10001003: Autocommit mode: true
окт. 01, 2022 8:33:54 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl$PooledConnections <init>
INFO: HHH000115: Hibernate connection pool size: 20 (min=1)
окт. 01, 2022 8:33:55 PM org.hibernate.dialect.Dialect <init>
INFO: HHH000400: Using dialect: org.example.hibernate.dialect.SQLiteDialect
окт. 01, 2022 8:33:55 PM org.hibernate.engine.transaction.jta.platform.internal.JtaPlatformInitiator initiateService
INFO: HHH000490: Using JtaPlatform implementation: [org.hibernate.engine.transaction.jta.platform.internal.NoJtaPlatform]
****Hibernate:
select task0_.id as id1_0_, task0_.status as status2_0_, task0_.task as task3_0_, task0_.task_create_time as task_cre4_0_ from todo task0_
personList.isEmpty() = false**** <----- here result

Java Hibernate exception

For some reason it does not find Polica even tho i have mapped it in code, created seperate file to map it etc. What is the problem?
In file PolicaDAO2 i am also getting createQuery deprecated for some reason if anyone knows solution to this aswell let me know. I tried multiple things aswell as you can see in the file under findall() function
Exception:
Aug 09, 2022 12:41:34 PM org.hibernate.Version logVersion
INFO: HHH000412: Hibernate ORM core version 6.1.2.Final
Aug 09, 2022 12:41:40 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
WARN: HHH10001002: Using built-in connection pool (not intended for production use)
Aug 09, 2022 12:41:40 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH10001005: Loaded JDBC driver class: com.mysql.cj.jdbc.Driver
Aug 09, 2022 12:41:40 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH10001012: Connecting with JDBC URL [jdbc:mysql://127.0.0.1:3306/Wallboard]
Aug 09, 2022 12:41:40 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH10001001: Connection properties: {password=****, user=root}
Aug 09, 2022 12:41:40 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH10001003: Autocommit mode: false
Aug 09, 2022 12:41:40 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl$PooledConnections <init>
INFO: HHH10001115: Connection pool size: 20 (min=1)
Aug 09, 2022 12:41:43 PM org.hibernate.engine.jdbc.dialect.internal.DialectFactoryImpl logSelectedDialect
INFO: HHH000400: Using dialect: org.hibernate.dialect.MySQLDialect
Aug 09, 2022 12:41:47 PM org.hibernate.engine.transaction.jta.platform.internal.JtaPlatformInitiator initiateService
INFO: HHH000490: Using JtaPlatform implementation: [org.hibernate.engine.transaction.jta.platform.internal.NoJtaPlatform]
Aug 09, 2022 12:41:47 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
WARN: HHH10001002: Using built-in connection pool (not intended for production use)
Aug 09, 2022 12:41:47 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH10001005: Loaded JDBC driver class: com.mysql.cj.jdbc.Driver
Aug 09, 2022 12:41:47 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH10001012: Connecting with JDBC URL [jdbc:mysql://127.0.0.1:3306/Wallboard]
Aug 09, 2022 12:41:47 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH10001001: Connection properties: {password=****, user=root}
Aug 09, 2022 12:41:47 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH10001003: Autocommit mode: false
Aug 09, 2022 12:41:47 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl$PooledConnections <init>
INFO: HHH10001115: Connection pool size: 20 (min=1)
Aug 09, 2022 12:41:48 PM org.hibernate.engine.jdbc.dialect.internal.DialectFactoryImpl logSelectedDialect
INFO: HHH000400: Using dialect: org.hibernate.dialect.MySQLDialect
Aug 09, 2022 12:41:48 PM org.hibernate.engine.transaction.jta.platform.internal.JtaPlatformInitiator initiateService
INFO: HHH000490: Using JtaPlatform implementation: [org.hibernate.engine.transaction.jta.platform.internal.NoJtaPlatform]
Exception in thread "main" java.lang.IllegalArgumentException: org.hibernate.query.sqm.UnknownEntityException: Could not resolve root entity 'Polica'
at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:138)
at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:175)
at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:182)
at org.hibernate.internal.AbstractSharedSessionContract.createQuery(AbstractSharedSessionContract.java:761)
at org.hibernate.internal.AbstractSharedSessionContract.createQuery(AbstractSharedSessionContract.java:663)
at org.hibernate.internal.AbstractSharedSessionContract.createQuery(AbstractSharedSessionContract.java:127)
at digiwallboard.DAO.PolicaDAO2.findAll(PolicaDAO2.java:81)
at digiwallboard.Service.PolicaService.findAll(PolicaService.java:18)
at Main.main(Main.java:27)
Caused by: org.hibernate.query.sqm.UnknownEntityException: Could not resolve root entity 'Polica'
at org.hibernate.query.hql.internal.SemanticQueryBuilder.visitRootEntity(SemanticQueryBuilder.java:1628)
at org.hibernate.query.hql.internal.SemanticQueryBuilder.visitRootEntity(SemanticQueryBuilder.java:243)
at org.hibernate.grammars.hql.HqlParser$RootEntityContext.accept(HqlParser.java:1874)
at org.hibernate.query.hql.internal.SemanticQueryBuilder.visitEntityWithJoins(SemanticQueryBuilder.java:1548)
at org.hibernate.query.hql.internal.SemanticQueryBuilder.visitFromClause(SemanticQueryBuilder.java:1539)
at org.hibernate.query.hql.internal.SemanticQueryBuilder.visitQuery(SemanticQueryBuilder.java:833)
at org.hibernate.query.hql.internal.SemanticQueryBuilder.visitQuerySpecExpression(SemanticQueryBuilder.java:629)
at org.hibernate.query.hql.internal.SemanticQueryBuilder.visitQuerySpecExpression(SemanticQueryBuilder.java:243)
at org.hibernate.grammars.hql.HqlParser$QuerySpecExpressionContext.accept(HqlParser.java:1218)
at org.hibernate.query.hql.internal.SemanticQueryBuilder.visitSimpleQueryGroup(SemanticQueryBuilder.java:623)
at org.hibernate.query.hql.internal.SemanticQueryBuilder.visitSimpleQueryGroup(SemanticQueryBuilder.java:243)
at org.hibernate.grammars.hql.HqlParser$SimpleQueryGroupContext.accept(HqlParser.java:1131)
at org.hibernate.query.hql.internal.SemanticQueryBuilder.visitSelectStatement(SemanticQueryBuilder.java:399)
at org.hibernate.query.hql.internal.SemanticQueryBuilder.visitStatement(SemanticQueryBuilder.java:358)
at org.hibernate.query.hql.internal.SemanticQueryBuilder.buildSemanticModel(SemanticQueryBuilder.java:285)
at org.hibernate.query.hql.internal.StandardHqlTranslator.translate(StandardHqlTranslator.java:81)
at org.hibernate.internal.AbstractSharedSessionContract.lambda$createQuery$2(AbstractSharedSessionContract.java:748)
at org.hibernate.query.internal.QueryInterpretationCacheStandardImpl.createHqlInterpretation(QueryInterpretationCacheStandardImpl.java:141)
at org.hibernate.query.internal.QueryInterpretationCacheStandardImpl.resolveHqlInterpretation(QueryInterpretationCacheStandardImpl.java:128)
at org.hibernate.internal.AbstractSharedSessionContract.createQuery(AbstractSharedSessionContract.java:745)
... 5 more
Main.java
import digiwallboard.Util.HibernateUtil;
import digiwallboard.Entity.*;
import java.util.List;
import digiwallboard.DAO.*;
import digiwallboard.Service.PolicaService;
public class Main {
public static void main(String[] args) {
// TODO Auto-generated method stub
PolicaService policaService = new PolicaService();
List<Polica> pol = policaService.findAll();
for(Polica p : pol) {
System.out.println("-" + p.toString());
}
}
}
PolicaDAO2.java
package digiwallboard.DAO;
import java.util.List;
import javax.persistence.TypedQuery;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
import org.hibernate.cfg.Configuration;
import org.hibernate.query.Query;
import digiwallboard.Entity.Polica;
public class PolicaDAO2 implements PolicaDaoInterface<Polica, String> {
private Session currentSession;
private Transaction currentTransaction;
public PolicaDAO2() {
}
public Session openCurrentSession() {
currentSession = getSessionFactory().openSession();
return currentSession;
}
public Session openCurrentSessionwithTransaction() {
currentSession = getSessionFactory().openSession();
currentTransaction = currentSession.beginTransaction();
return currentSession;
}
public void closeCurrentSession() {
currentSession.close();
}
public void closeCurrentSessionwithTransaction() {
currentTransaction.commit();
currentSession.close();
}
private static SessionFactory getSessionFactory() {
Configuration configuration = new Configuration().configure("hibernate.cfg.xml");
configuration.addAnnotatedClass(Polica.class);
StandardServiceRegistryBuilder builder = new StandardServiceRegistryBuilder()
.applySettings(configuration.getProperties());
SessionFactory sessionFactory = configuration.buildSessionFactory(builder.build());
return sessionFactory;
}
public Session getCurrentSession() {
return currentSession;
}
public void setCurrentSession(Session currentSession) {
this.currentSession = currentSession;
}
public Transaction getCurrentTransaction() {
return currentTransaction;
}
public void setCurrentTransaction(Transaction currentTransaction) {
this.currentTransaction = currentTransaction;
}
#SuppressWarnings("deprecation")
public void persist(Polica entity) {
getCurrentSession().save(entity);
}
#SuppressWarnings({ "unchecked", "deprecation" })
public List<Polica> findAll() {
Session session = openCurrentSession();
TypedQuery<Polica> result = (TypedQuery<Polica>) openCurrentSession().createQuery("FROM Polica");
List<Polica> result = query.getResultList();
closeCurrentSession();
/*
Query query = getCurrentSession().createQuery("select * from Polica");
List<Polica> pol = (List<Polica>) getCurrentSession().createNativeQuery("from Polica").list();
return pol;
*/
return result;
/*
TypedQuery<Polica> query = createQuery( "select * from Polica");
return query.getResultList();
*/
}
}
PolicaDaoInterface.java
package digiwallboard.DAO;
import java.io.Serializable;
import java.util.List;
public interface PolicaDaoInterface<T, Id extends Serializable> {
public List<T> findAll();
}
Polica.java
EDIT: IF YOU ARE USING HIBERNATE 6.0+ DO NOT USE JAVAX.PERSISTENCE LIKE I DID HERE THIS IS ONE OF THE REASONS I WAS GETTING THE EXCEPTION INSTEAD USE JAKARTA.PERSISTENCE
package digiwallboard.Entity;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;
#Entity
#Table(name = "Polica")
public class Polica {
#Id
#Column(name="id")
private int id;
#Column(name="ime_pol")
private String ime_pol;
public Polica() {
}
public Polica(int id, String ime_pol) {
super();
this.id = id;
this.ime_pol = ime_pol;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getIme_pol() {
return ime_pol;
}
public void setIme_pol(String ime_pol) {
this.ime_pol = ime_pol;
}
#Override
public String toString() {
return "Polica [id=" + id + ", ime_pol=" + ime_pol + "]";
}
}
PolicaService.java
package digiwallboard.Service;
import java.util.List;
import digiwallboard.DAO.PolicaDAO2;
import digiwallboard.Entity.Polica;
public class PolicaService {
private static PolicaDAO2 policaDao;
public PolicaService() {
policaDao = new PolicaDAO2();
}
public List<Polica> findAll() {
policaDao.openCurrentSession();
List<Polica> police = policaDao.findAll();
policaDao.closeCurrentSession();
return police;
}
}
hibernate.cfg.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<property name="hibernate.connection.driver_class">com.mysql.cj.jdbc.Driver</property>
<property name="hibernate.connection.username">root</property>
<property name="hibernate.connection.password">Root123</property>
<property name="hibernate.connection.url">jdbc:mysql://127.0.0.1:3306/Wallboard</property>
<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
<property name="hibernate.show_sql">true</property>
<!-- <mapping class="springfoxdemo.java.swagger.Polica" resource="springfoxdemo/java/swagger/Polica.hbm.xml"/> -->
<mapping class="digiwallboard.Entity.Polica"/>
</session-factory>
</hibernate-configuration>
hibernate.hbm.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd" >
<hibernate-mapping>
<class name="digiwallboard.Entity.Polica" table="Polica">
<id name="id" type="int" column="id">
<column name="id" />
</id>
<property name="ime_pol" column="ime_pol"
type="String">
</property>
</class>
</hibernate-mapping>

First of all, to avoid deprecation warnings, you should use the type safe variant of createQuery:
TypedQuery<Polica> result = openCurrentSession().createQuery("FROM Polica", Polica.class);
It's hard to say why your code is not working, but I have a few ideas what you could try. Note that you don't reference the hibernate.hbm.xml file anywhere and you commented out the reference to some other file Polica.hbm.xml, though the contents are unnecessary anyway as the annotations on the entity class are enough.
You are correctly listing the class through <mapping class="digiwallboard.Entity.Polica"/>, so it should be picked up by Hibernate. My guess is, that either some of your hbm.xml files that you might reference in your real app are interfering somehow, i.e. registering the entity type under a different name, or that your configuration is not picked up for some reason.
You can check which entities Hibernate found by inspecting getSessionFactory().getMetamodel().getEntities(), and if you find your entity there, check what EntityType#getName() reports, as that is the under which you can use the entity in HQL.

Hibernate 5 + Java 8 LocalDateTime

After a lot of reading and trying solutions from around the web, I've decided to ask for help because none of the solutions tried worked for me.
I have a very simple class which has a LocalDateTime variable.
I have created a MySQL table where I want to store the object containing this variable. For the LocalDateTime variable I've tried DateTime and TimeStamp types.
As far as I read, Hibernate 5 is supposed to support java.time.localdatetime. As I said, I've tried to use timestamp type and date, as long as timestamp and datetime as Mysql column types.
Always the same error.
This is a new project I am starting and I want to start using new Java 8 DateTime.
Here I attach all the classes and configuration files.
This is the Fecha.java, the object I want to map on my Mysql Table.
#Entity
#Table(name = "Fecha", catalog = "qtx590", uniqueConstraints = { #UniqueConstraint(columnNames = { "_id" }) })
public class Fecha implements Serializable {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
#Column(name = "_id", nullable = false, unique = true)
private int _id;
#Column(name = "_idEmpresa", nullable = false)
private int _idEmpresa;
#Column(name = "_idTurno", nullable = false)
private int _idTurno;
#Column(name = "Momento", nullable = false)
#Temporal(TemporalType.TIMESTAMP)
private LocalDateTime momento;
public Fecha() {
this._id = 99999;
this._idEmpresa = 99999;
this._idTurno = 99999;
this.momento = LocalDateTime.now();
}
public Fecha(int _id, int _idEmpresa, int idTurno, LocalDateTime momento) {
this._id = _id;
this._idEmpresa = _idEmpresa;
this._idTurno = idTurno;
this.momento = momento;
}
public String getMomentoString() {
DateTimeFormatter format = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
return this.momento.format(format);
}
public int get_id() {
return _id;
}
public void set_id(int _id) {
this._id = _id;
}
public int get_idEmpresa() {
return _idEmpresa;
}
public void set_idEmpresa(int _idEmpresa) {
this._idEmpresa = _idEmpresa;
}
public int get_idTurno() {
return _idTurno;
}
public void set_idTurno(int idTurno) {
this._idTurno = idTurno;
}
public LocalDateTime getmomento() {
return momento;
}
public void setmomento(LocalDateTime momento) {
this.momento = momento;
}
}
This is the HibernateConnectorClass
import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
public class HibernateConnector {
private static HibernateConnector me;
private Configuration cfg;
private SessionFactory sessionFactory;
private HibernateConnector() throws HibernateException {
cfg = new Configuration();
sessionFactory = cfg.configure().buildSessionFactory();
}
public static synchronized HibernateConnector getInstance() throws HibernateException {
if (me == null) {
me = new HibernateConnector();
}
return me;
}
public Session getSession() throws HibernateException {
Session session = sessionFactory.openSession();
if (!session.isConnected()) {
this.reconnect();
}
return session;
}
private void reconnect() throws HibernateException {
this.sessionFactory = cfg.buildSessionFactory();
}
}
This is the test class to test it:
public class Prueba {
public static void main(String[] args) {
// TODO Auto-generated method stub
FechaDAO fechaDAO = new FechaDAO();
Fecha f = new Fecha();
System.out.println(f.getmomento());
fechaDAO.insertar(f);
System.out.println("FIN");
}
}
The hibernate.cfg.xml is working fine ( I know it because I tested it with other entity / table.
This is the specific for Fecha Object
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
<!-- Generated 31-ago-2015 12:58:20 by Hibernate Tools 3.4.0.CR1 -->
<hibernate-mapping>
<class name="Fecha" table="Fecha">
<id name="_id" type="java.lang.Integer" access="field">
<column name="_id" />
<generator class="increment" />
</id>
<property name="_idEmpresa" type="java.lang.Integer" access="field">
<column name="_idEmpresa" />
</property>
<property name="_idTurno" type="java.lang.Integer">
<column name="_idTurno" />
</property>
<property name="momento" type="java.time.LocalDateTime">
<column name="Momento" />
</property>
</class>
</hibernate-mapping>
And this the error:
2015-09-02T13:47:16.719
sep 02, 2015 1:47:16 PM org.hibernate.Version logVersion
INFO: HHH000412: Hibernate Core {5.0.0.Final}
sep 02, 2015 1:47:16 PM org.hibernate.cfg.Environment <clinit>
INFO: HHH000206: hibernate.properties not found
sep 02, 2015 1:47:16 PM org.hibernate.cfg.Environment buildBytecodeProvider
INFO: HHH000021: Bytecode provider name : javassist
sep 02, 2015 1:47:16 PM org.hibernate.annotations.common.reflection.java.JavaReflectionManager <clinit>
INFO: HCANN000001: Hibernate Commons Annotations {5.0.0.Final}
sep 02, 2015 1:47:17 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
WARN: HHH000402: Using Hibernate built-in connection pool (not for production use!)
sep 02, 2015 1:47:17 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH000401: using driver [com.mysql.jdbc.Driver] at URL [jdbc:mysql://qtx590.li-bra.es:3306/qtx590]
sep 02, 2015 1:47:17 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH000046: Connection properties: {user=qtx590, password=****}
sep 02, 2015 1:47:17 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH000006: Autocommit mode: false
sep 02, 2015 1:47:17 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
INFO: HHH000115: Hibernate connection pool size: 20 (min=1)
sep 02, 2015 1:47:17 PM org.hibernate.dialect.Dialect <init>
INFO: HHH000400: Using dialect: org.hibernate.dialect.MySQLDialect
sep 02, 2015 1:47:17 PM org.hibernate.engine.jdbc.env.internal.LobCreatorBuilderImpl useContextualLobCreation
INFO: HHH000423: Disabling contextual LOB creation as JDBC driver reported JDBC version [3] less than 4
Hibernate: select max(_id) from Fecha
Hibernate: insert into Fecha (_idEmpresa, _idTurno, Momento, _id) values (?, ?, ?, ?)
sep 02, 2015 1:47:18 PM org.hibernate.engine.jdbc.spi.SqlExceptionHelper logExceptions
WARN: SQL Error: 0, SQLState: 22001
sep 02, 2015 1:47:18 PM org.hibernate.engine.jdbc.spi.SqlExceptionHelper logExceptions
ERROR: Data truncation: Incorrect datetime value: '’' for column 'Momento' at row 1
sep 02, 2015 1:47:18 PM org.hibernate.engine.jdbc.batch.internal.AbstractBatchImpl release
INFO: HHH000010: On release of batch it still contained JDBC statements
sep 02, 2015 1:47:18 PM org.hibernate.internal.SessionImpl$5 mapManagedFlushFailure
ERROR: HHH000346: Error during managed flush [could not execute statement]
org.hibernate.exception.DataException: could not execute statement
at org.hibernate.exception.internal.SQLExceptionTypeDelegate.convert(SQLExceptionTypeDelegate.java:52)
at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:42)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:109)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:95)
at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:207)
at org.hibernate.engine.jdbc.batch.internal.NonBatchingBatch.addToBatch(NonBatchingBatch.java:45)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2823)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3323)
at org.hibernate.action.internal.EntityInsertAction.execute(EntityInsertAction.java:89)
at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:447)
at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:333)
at org.hibernate.event.internal.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:335)
at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:39)
at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1224)
at org.hibernate.internal.SessionImpl.managedFlush(SessionImpl.java:464)
at org.hibernate.internal.SessionImpl.flushBeforeTransactionCompletion(SessionImpl.java:2890)
at org.hibernate.internal.SessionImpl.beforeTransactionCompletion(SessionImpl.java:2266)
at org.hibernate.engine.jdbc.internal.JdbcCoordinatorImpl.beforeTransactionCompletion(JdbcCoordinatorImpl.java:485)
at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl.beforeCompletionCallback(JdbcResourceLocalTransactionCoordinatorImpl.java:146)
at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl.access$100(JdbcResourceLocalTransactionCoordinatorImpl.java:38)
at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl$TransactionDriverControlImpl.commit(JdbcResourceLocalTransactionCoordinatorImpl.java:230)
at org.hibernate.engine.transaction.internal.TransactionImpl.commit(TransactionImpl.java:65)
at FechaDAO.insertar(FechaDAO.java:26)
at Prueba.main(Prueba.java:16)
Caused by: com.mysql.jdbc.MysqlDataTruncation: Data truncation: Incorrect datetime value: '’' for column 'Momento' at row 1
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2983)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1631)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1723)
at com.mysql.jdbc.Connection.execSQL(Connection.java:3283)
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1332)
at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1604)
at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1519)
at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1504)
at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:204)
... 19 more
Hibernate: insert into Fecha (_idEmpresa, _idTurno, Momento, _id) values (?, ?, ?, ?)
sep 02, 2015 1:47:18 PM org.hibernate.engine.jdbc.spi.SqlExceptionHelper logExceptions
WARN: SQL Error: 0, SQLState: 22001
sep 02, 2015 1:47:18 PM org.hibernate.engine.jdbc.spi.SqlExceptionHelper logExceptions
ERROR: Data truncation: Incorrect datetime value: '’' for column 'Momento' at row 1
sep 02, 2015 1:47:18 PM org.hibernate.engine.jdbc.batch.internal.AbstractBatchImpl release
INFO: HHH000010: On release of batch it still contained JDBC statements
Exception in thread "main" org.hibernate.exception.DataException: could not execute statement
at org.hibernate.exception.internal.SQLExceptionTypeDelegate.convert(SQLExceptionTypeDelegate.java:52)
at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:42)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:109)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:95)
at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:207)
at org.hibernate.engine.jdbc.batch.internal.NonBatchingBatch.addToBatch(NonBatchingBatch.java:45)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2823)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3323)
at org.hibernate.action.internal.EntityInsertAction.execute(EntityInsertAction.java:89)
at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:447)
at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:333)
at org.hibernate.event.internal.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:335)
at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:39)
at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1224)
at FechaDAO.insertar(FechaDAO.java:32)
at Prueba.main(Prueba.java:16)
Caused by: com.mysql.jdbc.MysqlDataTruncation: Data truncation: Incorrect datetime value: '’' for column 'Momento' at row 1
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2983)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1631)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1723)
at com.mysql.jdbc.Connection.execSQL(Connection.java:3283)
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1332)
at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1604)
at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1519)
at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1504)
at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:204)
... 11 more

IIRC for Hibernate5 to map java.time.* no #Temporal annotation is needed/accepted. Hibernate5 have sufficient information to judge the mapping from the type of the property. This is stated in their document.

Java 8 support in Hibernate 5 but this is not portable to other JPA implementations. Add dependencies as below and no more configurations
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-java8</artifactId>
<version>5.1.0.Final</version>
</dependency>
For further reading : Hibernate 5: How to persist LocalDateTime & Co with Hibernate

Error with updating table using java hibernate as "could not execute statement" error

Using Java and hibernate, I was to change the Database definition after creation, just by making changes to my existing Entity Class. Will the Changes be reflected in the Database??? Is it Possible??? I tried and Failed. I have tried <property name="hibernate.hbm2ddl.auto">update</property> But getting error, Can anyone guide me with the proper method, here is my code.
/**
* Description of bankbranchcontactdetailsBean
*
* #author Vishal Jain # TurtleTec Inc.
*/
package com.beans;
import javax.persistence.Entity;
import javax.persistence.Table;
import javax.persistence.TableGenerator;
import javax.persistence.Id;
import javax.persistence.Column;
import javax.persistence.Temporal;
import javax.persistence.UniqueConstraint;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import java.io.Serializable;
import java.util.Date;
#Entity(name = "bankbranchcontactdetails")
#Table(name = "bankbranchcontactdetails", schema = "stserptest", uniqueConstraints = { #UniqueConstraint(columnNames = "BankBranchContactId") })
#TableGenerator(name = "bankbranchcontactdetailsgen", table = "bankbranchcontactdetails", pkColumnName = "BankBranchContactId")
public class bankbranchcontactdetailsBean extends SuperBeanClass implements
SuperBeanInterface, Serializable {
#Id
#GeneratedValue(strategy = GenerationType.AUTO)
#Column(columnDefinition = "INT(10) UNSIGNED", name = "BankBranchContactId", precision = 10, scale = 0, nullable = false, unique = true)
private Integer Id;
#Column(columnDefinition = "INT(10) UNSIGNED", name = "BankBranchId", precision = 10, scale = 0, nullable = false)
private Integer _BankBranchId;
#Column(columnDefinition = "ENUM('PHONE','MOBILE','FAX','TELEX')", name = "ContactTypeModified", length = 6, nullable = false)
private String _ContactTypeModified;
#Column(columnDefinition = "VARCHAR(20)", name = "Contact", length = 20, nullable = false)
private String _Contact;
#Column(columnDefinition = "INT(10) UNSIGNED", name = "NewField", precision = 10, scale = 0, nullable = true)
private Integer _NewField;
public bankbranchcontactdetailsBean() {
_BankBranchId = 0;
_ContactType = "";
_Contact = "";
_NewField = 0;
}
public bankbranchcontactdetailsBean(Integer __BankBranchId,
String __ContactTypeModified String __Contact, Integer __MyCompanyId) {
_BankBranchId = __BankBranchId;
_ContactTypeModified = __ContactTypeModified;
_Contact = __Contact;
_MyCompanyId = __MyCompanyId;
}
public int getBankBranchContactId() {
return Id;
}
public Integer getBankBranchId() {
return _BankBranchId;
}
public String getContactType() {
return _ContactTypeModified;
}
public String getContact() {
return _Contact;
}
public Integer getNewField() {
return _NewField;
}
public void setBankBranchContactId(int NewValue) {
Id = NewValue;
}
public void setBankBranchId(Integer NewValue) {
_BankBranchId = NewValue;
}
public void setContactType(String NewValue) {
_ContactTypeModified = NewValue;
}
public void setContact(String NewValue) {
_Contact = NewValue;
}
public void setNewField(Integer NewValue) {
_NewField = NewValue;
}
}
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
<property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="hibernate.connection.url">jdbc:mysql://localhost:3306/mysql?zeroDateTimeBehavior=convertToNull</property>
<property name="hibernate.connection.username">root</property>
<property name="hibernate.connection.password">V32</property>
<property name="hibernate.default_schema">stserptest</property>
<property name="hibernate.hbm2ddl.auto">update</property>
<property name="hibernate.archive.autodetection">class</property>
<property name="hibernate.show_sql">true</property>
<property name="hibernate.format_sql">true</property>
<mapping class="com.stserp.beans.bankbranchcontactdetailsBean" />
</session-factory>
</hibernate-configuration>
/**
* Description of ManagerClass
*
* #author Vishal Jain
*/
package com.beans;
import java.util.ArrayList;
import javax.swing.JOptionPane;
import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
import org.hibernate.service.ServiceRegistry;
import org.hibernate.service.ServiceRegistryBuilder;
public class ManagerClass {
private static SessionFactory factory = null;
private static ManagerClass _ManagerClass = null;
public static SessionFactory createSessionFactory() {
SessionFactory sessionFactory;
Configuration configuration = new Configuration();
configuration.configure();
ServiceRegistry serviceRegistry = new ServiceRegistryBuilder()
.applySettings(configuration.getProperties())
.buildServiceRegistry();
sessionFactory = configuration.buildSessionFactory(serviceRegistry);
return sessionFactory;
}
public static SessionFactory getSessionFactory() {
return factory;
}
public static ManagerClass getInstance() throws ExceptionInInitializerError {
try {
if (factory == null) {
factory = createSessionFactory();
}
if (_ManagerClass == null) {
_ManagerClass = new ManagerClass();
}
} catch (Throwable ex) {
JOptionPane.showMessageDialog(
null,
"Failed to create sessionFactory object...\n"
+ ex.getMessage(), "Error...", 0);
throw new ExceptionInInitializerError(ex);
} finally {
return _ManagerClass;
}
}
public ArrayList<Integer> SaveBeansList(Session session, String entityName,
ArrayList<? extends SuperBeanClass> BeansList)
throws HibernateException {
ArrayList<Integer> IDs = null;
try {
IDs = new ArrayList<Integer>();
for (SuperBeanClass element : BeansList) {
IDs.add((Integer) session.save(entityName, element));
}
} catch (HibernateException e) {
throw e;
}
return IDs;
}
public ArrayList<? extends SuperBeanClass> LoadTable(Session session,
String TableName) throws HibernateException {
ArrayList<? extends SuperBeanClass> beansList = null;
try {
beansList = (ArrayList<? extends SuperBeanClass>) session
.createQuery("FROM " + TableName).list();
} catch (HibernateException e) {
throw e;
}
return beansList;
}
public ArrayList<?> LoadConditional(Session session, String _query)
throws HibernateException {
ArrayList<?> beansList = null;
try {
beansList = (ArrayList<? extends SuperBeanClass>) session
.createQuery(_query).list();
} catch (HibernateException e) {
throw e;
}
return beansList;
}
public SuperBeanInterface LoadById(Session session, Class className,
Integer ID) throws HibernateException {
SuperBeanInterface BeanInterface = null;
try {
BeanInterface = (SuperBeanInterface) session.get(className, ID);
} catch (HibernateException e) {
throw e;
}
return BeanInterface;
}
public void DeleteById(Session session, Class className, Integer ID)
throws HibernateException {
try {
session.delete(session.get(className, ID));
} catch (HibernateException e) {
throw e;
}
}
}
/**
* Description of SuperBeanClass
*
* #author Vishal Jain
*/
package com.beans;
public class SuperBeanClass {
public SuperBeanClass() {
}
}
/**
* Description of SuperBeanInterface
*
* #author Vishal Jain
*/
package com.beans;
public interface SuperBeanInterface {
}
Here the field 'ContactType' has been Changed to 'ContactTypeModified' and a new Field 'NewField' has been added to the Entity Class bankbranchcontactdetailsBean. No manual changes have been made to the existing Database Table bankbranchcontactdetails. I am getting Error upon the execution of the program which is as Follows :
Aug 14, 2014 10:13:59 AM org.hibernate.annotations.common.Version <clinit>
INFO: HCANN000001: Hibernate Commons Annotations {4.0.2.Final}
Aug 14, 2014 10:13:59 AM org.hibernate.Version logVersion
INFO: HHH000412: Hibernate Core {4.2.6.Final}
Aug 14, 2014 10:13:59 AM org.hibernate.cfg.Environment <clinit>
INFO: HHH000206: hibernate.properties not found
Aug 14, 2014 10:13:59 AM org.hibernate.cfg.Environment buildBytecodeProvider
INFO: HHH000021: Bytecode provider name : javassist
Aug 14, 2014 10:13:59 AM org.hibernate.cfg.Configuration configure
INFO: HHH000043: Configuring from resource: /hibernate.cfg.xml
Aug 14, 2014 10:13:59 AM org.hibernate.cfg.Configuration getConfigurationInputStream
INFO: HHH000040: Configuration resource: /hibernate.cfg.xml
Aug 14, 2014 10:13:59 AM org.hibernate.internal.util.xml.DTDEntityResolver resolveEntity
WARN: HHH000223: Recognized obsolete hibernate namespace http://hibernate.sourceforge.net/. Use namespace http://www.hibernate.org/dtd/ instead. Refer to Hibernate 3.6 Migration Guide!
Aug 14, 2014 10:13:59 AM org.hibernate.cfg.Configuration doConfigure
INFO: HHH000041: Configured SessionFactory: null
Aug 14, 2014 10:13:59 AM org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
INFO: HHH000402: Using Hibernate built-in connection pool (not for production use!)
Aug 14, 2014 10:13:59 AM org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
INFO: HHH000115: Hibernate connection pool size: 20
Aug 14, 2014 10:13:59 AM org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
INFO: HHH000006: Autocommit mode: false
Aug 14, 2014 10:13:59 AM org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
INFO: HHH000401: using driver [com.mysql.jdbc.Driver] at URL [jdbc:mysql://localhost:3306/mysql?zeroDateTimeBehavior=convertToNull]
Aug 14, 2014 10:13:59 AM org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
INFO: HHH000046: Connection properties: {user=root, password=****}
Aug 14, 2014 10:13:59 AM org.hibernate.dialect.Dialect <init>
INFO: HHH000400: Using dialect: org.hibernate.dialect.MySQLDialect
Aug 14, 2014 10:13:59 AM org.hibernate.engine.transaction.internal.TransactionFactoryInitiator initiateService
INFO: HHH000399: Using default transaction strategy (direct JDBC transactions)
Aug 14, 2014 10:13:59 AM org.hibernate.hql.internal.ast.ASTQueryTranslatorFactory <init>
INFO: HHH000397: Using ASTQueryTranslatorFactory
Aug 14, 2014 10:14:00 AM org.hibernate.tool.hbm2ddl.SchemaUpdate execute
INFO: HHH000228: Running hbm2ddl schema update
Aug 14, 2014 10:14:00 AM org.hibernate.tool.hbm2ddl.SchemaUpdate execute
INFO: HHH000102: Fetching database metadata
Aug 14, 2014 10:14:00 AM org.hibernate.tool.hbm2ddl.SchemaUpdate execute
INFO: HHH000396: Updating schema
Aug 14, 2014 10:14:00 AM org.hibernate.tool.hbm2ddl.DatabaseMetadata getTableMetadata
INFO: HHH000262: Table not found: bankbranchcontactdetails
Aug 14, 2014 10:14:00 AM org.hibernate.tool.hbm2ddl.DatabaseMetadata getTableMetadata
INFO: HHH000262: Table not found: bankbranchcontactdetails
Aug 14, 2014 10:14:00 AM org.hibernate.tool.hbm2ddl.DatabaseMetadata getTableMetadata
INFO: HHH000262: Table not found: bankbranchcontactdetails
Aug 14, 2014 10:14:00 AM org.hibernate.tool.hbm2ddl.SchemaUpdate execute
ERROR: HHH000388: Unsuccessful: create table stserptest.bankbranchcontactdetails (BankBranchContactId INT(10) UNSIGNED not null auto_increment, BankBranchId INT(10) UNSIGNED not null, Contact VARCHAR(20) not null, ContactTypeModified ENUM('PHONE','MOBILE','FAX','TELEX') not null, EntryDate TIMESTAMP, MyCompanyId INT(10) UNSIGNED not null, NewField INT(10) UNSIGNED, UserId INT(10) UNSIGNED, isDeleted ENUM('YES','NO'), primary key (BankBranchContactId))
Aug 14, 2014 10:14:00 AM org.hibernate.tool.hbm2ddl.SchemaUpdate execute
ERROR: Table 'bankbranchcontactdetails' already exists
Aug 14, 2014 10:14:00 AM org.hibernate.tool.hbm2ddl.SchemaUpdate execute
INFO: HHH000232: Schema update complete
Aug 14, 2014 10:14:00 AM org.hibernate.cfg.Configuration configure
INFO: HHH000043: Configuring from resource: /hibernate.cfg.xml
Aug 14, 2014 10:14:00 AM org.hibernate.cfg.Configuration getConfigurationInputStream
INFO: HHH000040: Configuration resource: /hibernate.cfg.xml
Aug 14, 2014 10:14:00 AM org.hibernate.internal.util.xml.DTDEntityResolver resolveEntity
WARN: HHH000223: Recognized obsolete hibernate namespace http://hibernate.sourceforge.net/. Use namespace http://www.hibernate.org/dtd/ instead. Refer to Hibernate 3.6 Migration Guide!
Aug 14, 2014 10:14:00 AM org.hibernate.cfg.Configuration doConfigure
INFO: HHH000041: Configured SessionFactory: null
Aug 14, 2014 10:14:00 AM org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
INFO: HHH000402: Using Hibernate built-in connection pool (not for production use!)
Aug 14, 2014 10:14:00 AM org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
INFO: HHH000115: Hibernate connection pool size: 20
Aug 14, 2014 10:14:00 AM org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
INFO: HHH000006: Autocommit mode: false
Aug 14, 2014 10:14:00 AM org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
INFO: HHH000401: using driver [com.mysql.jdbc.Driver] at URL [jdbc:mysql://localhost:3306/mysql?zeroDateTimeBehavior=convertToNull]
Aug 14, 2014 10:14:00 AM org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
INFO: HHH000046: Connection properties: {user=root, password=****}
Aug 14, 2014 10:14:00 AM org.hibernate.dialect.Dialect <init>
INFO: HHH000400: Using dialect: org.hibernate.dialect.MySQLDialect
Aug 14, 2014 10:14:00 AM org.hibernate.engine.transaction.internal.TransactionFactoryInitiator initiateService
INFO: HHH000399: Using default transaction strategy (direct JDBC transactions)
Aug 14, 2014 10:14:00 AM org.hibernate.hql.internal.ast.ASTQueryTranslatorFactory <init>
INFO: HHH000397: Using ASTQueryTranslatorFactory
Aug 14, 2014 10:14:00 AM org.hibernate.tool.hbm2ddl.SchemaUpdate execute
INFO: HHH000228: Running hbm2ddl schema update
Aug 14, 2014 10:14:00 AM org.hibernate.tool.hbm2ddl.SchemaUpdate execute
INFO: HHH000102: Fetching database metadata
Aug 14, 2014 10:14:00 AM org.hibernate.tool.hbm2ddl.SchemaUpdate execute
INFO: HHH000396: Updating schema
Aug 14, 2014 10:14:00 AM org.hibernate.tool.hbm2ddl.DatabaseMetadata getTableMetadata
INFO: HHH000262: Table not found: bankbranchcontactdetails
Aug 14, 2014 10:14:00 AM org.hibernate.tool.hbm2ddl.DatabaseMetadata getTableMetadata
INFO: HHH000262: Table not found: bankbranchcontactdetails
Aug 14, 2014 10:14:00 AM org.hibernate.tool.hbm2ddl.DatabaseMetadata getTableMetadata
INFO: HHH000262: Table not found: bankbranchcontactdetails
Aug 14, 2014 10:14:00 AM org.hibernate.tool.hbm2ddl.SchemaUpdate execute
ERROR: HHH000388: Unsuccessful: create table stserptest.bankbranchcontactdetails (BankBranchContactId INT(10) UNSIGNED not null auto_increment, BankBranchId INT(10) UNSIGNED not null, Contact VARCHAR(20) not null, ContactTypeModified ENUM('PHONE','MOBILE','FAX','TELEX') not null, EntryDate TIMESTAMP, MyCompanyId INT(10) UNSIGNED not null, NewField INT(10) UNSIGNED, UserId INT(10) UNSIGNED, isDeleted ENUM('YES','NO'), primary key (BankBranchContactId))
Aug 14, 2014 10:14:00 AM org.hibernate.tool.hbm2ddl.SchemaUpdate execute
ERROR: Table 'bankbranchcontactdetails' already exists
Aug 14, 2014 10:14:00 AM org.hibernate.tool.hbm2ddl.SchemaUpdate execute
INFO: HHH000232: Schema update complete
Hibernate:
insert
into
stserptest.bankbranchcontactdetails
(BankBranchId, Contact, ContactTypeModified, EntryDate, MyCompanyId, NewField, UserId, isDeleted)
values
(?, ?, ?, ?, ?, ?, ?, ?)
Aug 14, 2014 10:14:00 AM org.hibernate.engine.jdbc.spi.SqlExceptionHelper logExceptions
WARN: SQL Error: 1054, SQLState: 42S22
Aug 14, 2014 10:14:00 AM org.hibernate.engine.jdbc.spi.SqlExceptionHelper logExceptions
ERROR: Unknown column 'ContactTypeModified' in 'field list'

can the database definition be updated with simple changes in the Class in Java Hibernate [duplicate]

This question already has answers here:
Hibernate - does it change the structure of a database?
(3 answers)
Closed 8 years ago.
Using Java and hibernate, I was wondering that if I can change the Database definition after creation, just by making changes to my existing Entity Class. Will the Changes be reflected in the Database??? Is it Possible??? I tried and Failed. I have tried
<property name="hibernate.hbm2ddl.auto">update</property>
But getting error, if it is still possible, here is my code.
/**
* Description of bankbranchcontactdetailsBean
*
* #author Vishal Jain # TurtleTec Inc.
*/
package com.beans;
import javax.persistence.Entity;
import javax.persistence.Table;
import javax.persistence.TableGenerator;
import javax.persistence.Id;
import javax.persistence.Column;
import javax.persistence.Temporal;
import javax.persistence.UniqueConstraint;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import java.io.Serializable;
import java.util.Date;
#Entity(name = "bankbranchcontactdetails")
#Table(name = "bankbranchcontactdetails", schema = "stserptest", uniqueConstraints = { #UniqueConstraint(columnNames = "BankBranchContactId") })
#TableGenerator(name = "bankbranchcontactdetailsgen", table = "bankbranchcontactdetails", pkColumnName = "BankBranchContactId")
public class bankbranchcontactdetailsBean extends SuperBeanClass implements
SuperBeanInterface, Serializable {
#Id
#GeneratedValue(strategy = GenerationType.AUTO)
#Column(columnDefinition = "INT(10) UNSIGNED", name = "BankBranchContactId", precision = 10, scale = 0, nullable = false, unique = true)
private Integer Id;
#Column(columnDefinition = "INT(10) UNSIGNED", name = "BankBranchId", precision = 10, scale = 0, nullable = false)
private Integer _BankBranchId;
#Column(columnDefinition = "ENUM('PHONE','MOBILE','FAX','TELEX')", name = "ContactTypeModified", length = 6, nullable = false)
private String _ContactTypeModified;
#Column(columnDefinition = "VARCHAR(20)", name = "Contact", length = 20, nullable = false)
private String _Contact;
#Column(columnDefinition = "INT(10) UNSIGNED", name = "NewField", precision = 10, scale = 0, nullable = true)
private Integer _NewField;
public bankbranchcontactdetailsBean() {
_BankBranchId = 0;
_ContactType = "";
_Contact = "";
_NewField = 0;
}
public bankbranchcontactdetailsBean(Integer __BankBranchId,
String __ContactTypeModified String __Contact, Integer __MyCompanyId) {
_BankBranchId = __BankBranchId;
_ContactTypeModified = __ContactTypeModified;
_Contact = __Contact;
_MyCompanyId = __MyCompanyId;
}
public int getBankBranchContactId() {
return Id;
}
public Integer getBankBranchId() {
return _BankBranchId;
}
public String getContactType() {
return _ContactTypeModified;
}
public String getContact() {
return _Contact;
}
public Integer getNewField() {
return _NewField;
}
public void setBankBranchContactId(int NewValue) {
Id = NewValue;
}
public void setBankBranchId(Integer NewValue) {
_BankBranchId = NewValue;
}
public void setContactType(String NewValue) {
_ContactTypeModified = NewValue;
}
public void setContact(String NewValue) {
_Contact = NewValue;
}
public void setNewField(Integer NewValue) {
_NewField = NewValue;
}
}
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
<property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="hibernate.connection.url">jdbc:mysql://localhost:3306/mysql?zeroDateTimeBehavior=convertToNull</property>
<property name="hibernate.connection.username">root</property>
<property name="hibernate.connection.password">V32</property>
<property name="hibernate.default_schema">stserptest</property>
<property name="hibernate.hbm2ddl.auto">update</property>
<property name="hibernate.archive.autodetection">class</property>
<property name="hibernate.show_sql">true</property>
<property name="hibernate.format_sql">true</property>
<mapping class="com.stserp.beans.bankbranchcontactdetailsBean" />
</session-factory>
</hibernate-configuration>
/**
* Description of ManagerClass
*
* #author Vishal Jain
*/
package com.beans;
import java.util.ArrayList;
import javax.swing.JOptionPane;
import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
import org.hibernate.service.ServiceRegistry;
import org.hibernate.service.ServiceRegistryBuilder;
public class ManagerClass {
private static SessionFactory factory = null;
private static ManagerClass _ManagerClass = null;
public static SessionFactory createSessionFactory() {
SessionFactory sessionFactory;
Configuration configuration = new Configuration();
configuration.configure();
ServiceRegistry serviceRegistry = new ServiceRegistryBuilder()
.applySettings(configuration.getProperties())
.buildServiceRegistry();
sessionFactory = configuration.buildSessionFactory(serviceRegistry);
return sessionFactory;
}
public static SessionFactory getSessionFactory() {
return factory;
}
public static ManagerClass getInstance() throws ExceptionInInitializerError {
try {
if (factory == null) {
factory = createSessionFactory();
}
if (_ManagerClass == null) {
_ManagerClass = new ManagerClass();
}
} catch (Throwable ex) {
JOptionPane.showMessageDialog(
null,
"Failed to create sessionFactory object...\n"
+ ex.getMessage(), "Error...", 0);
throw new ExceptionInInitializerError(ex);
} finally {
return _ManagerClass;
}
}
public ArrayList<Integer> SaveBeansList(Session session, String entityName,
ArrayList<? extends SuperBeanClass> BeansList)
throws HibernateException {
ArrayList<Integer> IDs = null;
try {
IDs = new ArrayList<Integer>();
for (SuperBeanClass element : BeansList) {
IDs.add((Integer) session.save(entityName, element));
}
} catch (HibernateException e) {
throw e;
}
return IDs;
}
public ArrayList<? extends SuperBeanClass> LoadTable(Session session,
String TableName) throws HibernateException {
ArrayList<? extends SuperBeanClass> beansList = null;
try {
beansList = (ArrayList<? extends SuperBeanClass>) session
.createQuery("FROM " + TableName).list();
} catch (HibernateException e) {
throw e;
}
return beansList;
}
public ArrayList<?> LoadConditional(Session session, String _query)
throws HibernateException {
ArrayList<?> beansList = null;
try {
beansList = (ArrayList<? extends SuperBeanClass>) session
.createQuery(_query).list();
} catch (HibernateException e) {
throw e;
}
return beansList;
}
public SuperBeanInterface LoadById(Session session, Class className,
Integer ID) throws HibernateException {
SuperBeanInterface BeanInterface = null;
try {
BeanInterface = (SuperBeanInterface) session.get(className, ID);
} catch (HibernateException e) {
throw e;
}
return BeanInterface;
}
public void DeleteById(Session session, Class className, Integer ID)
throws HibernateException {
try {
session.delete(session.get(className, ID));
} catch (HibernateException e) {
throw e;
}
}
}
/**
* Description of SuperBeanClass
*
* #author Vishal Jain
*/
package com.beans;
public class SuperBeanClass {
public SuperBeanClass() {
}
}
/**
* Description of SuperBeanInterface
*
* #author Vishal Jain
*/
package com.beans;
public interface SuperBeanInterface {
}
Here the field 'ContactType' has been Changed to 'ContactTypeModified' and a new Field 'NewField' has been added to the Entity Class. No manual changes have been made to the Database. I am getting Error upon the execution of the program which is as Follows :
Aug 14, 2014 10:13:59 AM org.hibernate.annotations.common.Version <clinit>
INFO: HCANN000001: Hibernate Commons Annotations {4.0.2.Final}
Aug 14, 2014 10:13:59 AM org.hibernate.Version logVersion
INFO: HHH000412: Hibernate Core {4.2.6.Final}
Aug 14, 2014 10:13:59 AM org.hibernate.cfg.Environment <clinit>
INFO: HHH000206: hibernate.properties not found
Aug 14, 2014 10:13:59 AM org.hibernate.cfg.Environment buildBytecodeProvider
INFO: HHH000021: Bytecode provider name : javassist
Aug 14, 2014 10:13:59 AM org.hibernate.cfg.Configuration configure
INFO: HHH000043: Configuring from resource: /hibernate.cfg.xml
Aug 14, 2014 10:13:59 AM org.hibernate.cfg.Configuration getConfigurationInputStream
INFO: HHH000040: Configuration resource: /hibernate.cfg.xml
Aug 14, 2014 10:13:59 AM org.hibernate.internal.util.xml.DTDEntityResolver resolveEntity
WARN: HHH000223: Recognized obsolete hibernate namespace http://hibernate.sourceforge.net/. Use namespace http://www.hibernate.org/dtd/ instead. Refer to Hibernate 3.6 Migration Guide!
Aug 14, 2014 10:13:59 AM org.hibernate.cfg.Configuration doConfigure
INFO: HHH000041: Configured SessionFactory: null
Aug 14, 2014 10:13:59 AM org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
INFO: HHH000402: Using Hibernate built-in connection pool (not for production use!)
Aug 14, 2014 10:13:59 AM org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
INFO: HHH000115: Hibernate connection pool size: 20
Aug 14, 2014 10:13:59 AM org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
INFO: HHH000006: Autocommit mode: false
Aug 14, 2014 10:13:59 AM org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
INFO: HHH000401: using driver [com.mysql.jdbc.Driver] at URL [jdbc:mysql://localhost:3306/mysql?zeroDateTimeBehavior=convertToNull]
Aug 14, 2014 10:13:59 AM org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
INFO: HHH000046: Connection properties: {user=root, password=****}
Aug 14, 2014 10:13:59 AM org.hibernate.dialect.Dialect <init>
INFO: HHH000400: Using dialect: org.hibernate.dialect.MySQLDialect
Aug 14, 2014 10:13:59 AM org.hibernate.engine.transaction.internal.TransactionFactoryInitiator initiateService
INFO: HHH000399: Using default transaction strategy (direct JDBC transactions)
Aug 14, 2014 10:13:59 AM org.hibernate.hql.internal.ast.ASTQueryTranslatorFactory <init>
INFO: HHH000397: Using ASTQueryTranslatorFactory
Aug 14, 2014 10:14:00 AM org.hibernate.tool.hbm2ddl.SchemaUpdate execute
INFO: HHH000228: Running hbm2ddl schema update
Aug 14, 2014 10:14:00 AM org.hibernate.tool.hbm2ddl.SchemaUpdate execute
INFO: HHH000102: Fetching database metadata
Aug 14, 2014 10:14:00 AM org.hibernate.tool.hbm2ddl.SchemaUpdate execute
INFO: HHH000396: Updating schema
Aug 14, 2014 10:14:00 AM org.hibernate.tool.hbm2ddl.DatabaseMetadata getTableMetadata
INFO: HHH000262: Table not found: bankbranchcontactdetails
Aug 14, 2014 10:14:00 AM org.hibernate.tool.hbm2ddl.DatabaseMetadata getTableMetadata
INFO: HHH000262: Table not found: bankbranchcontactdetails
Aug 14, 2014 10:14:00 AM org.hibernate.tool.hbm2ddl.DatabaseMetadata getTableMetadata
INFO: HHH000262: Table not found: bankbranchcontactdetails
Aug 14, 2014 10:14:00 AM org.hibernate.tool.hbm2ddl.SchemaUpdate execute
ERROR: HHH000388: Unsuccessful: create table stserptest.bankbranchcontactdetails (BankBranchContactId INT(10) UNSIGNED not null auto_increment, BankBranchId INT(10) UNSIGNED not null, Contact VARCHAR(20) not null, ContactTypeModified ENUM('PHONE','MOBILE','FAX','TELEX') not null, EntryDate TIMESTAMP, MyCompanyId INT(10) UNSIGNED not null, NewField INT(10) UNSIGNED, UserId INT(10) UNSIGNED, isDeleted ENUM('YES','NO'), primary key (BankBranchContactId))
Aug 14, 2014 10:14:00 AM org.hibernate.tool.hbm2ddl.SchemaUpdate execute
ERROR: Table 'bankbranchcontactdetails' already exists
Aug 14, 2014 10:14:00 AM org.hibernate.tool.hbm2ddl.SchemaUpdate execute
INFO: HHH000232: Schema update complete
Aug 14, 2014 10:14:00 AM org.hibernate.cfg.Configuration configure
INFO: HHH000043: Configuring from resource: /hibernate.cfg.xml
Aug 14, 2014 10:14:00 AM org.hibernate.cfg.Configuration getConfigurationInputStream
INFO: HHH000040: Configuration resource: /hibernate.cfg.xml
Aug 14, 2014 10:14:00 AM org.hibernate.internal.util.xml.DTDEntityResolver resolveEntity
WARN: HHH000223: Recognized obsolete hibernate namespace http://hibernate.sourceforge.net/. Use namespace http://www.hibernate.org/dtd/ instead. Refer to Hibernate 3.6 Migration Guide!
Aug 14, 2014 10:14:00 AM org.hibernate.cfg.Configuration doConfigure
INFO: HHH000041: Configured SessionFactory: null
Aug 14, 2014 10:14:00 AM org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
INFO: HHH000402: Using Hibernate built-in connection pool (not for production use!)
Aug 14, 2014 10:14:00 AM org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
INFO: HHH000115: Hibernate connection pool size: 20
Aug 14, 2014 10:14:00 AM org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
INFO: HHH000006: Autocommit mode: false
Aug 14, 2014 10:14:00 AM org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
INFO: HHH000401: using driver [com.mysql.jdbc.Driver] at URL [jdbc:mysql://localhost:3306/mysql?zeroDateTimeBehavior=convertToNull]
Aug 14, 2014 10:14:00 AM org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
INFO: HHH000046: Connection properties: {user=root, password=****}
Aug 14, 2014 10:14:00 AM org.hibernate.dialect.Dialect <init>
INFO: HHH000400: Using dialect: org.hibernate.dialect.MySQLDialect
Aug 14, 2014 10:14:00 AM org.hibernate.engine.transaction.internal.TransactionFactoryInitiator initiateService
INFO: HHH000399: Using default transaction strategy (direct JDBC transactions)
Aug 14, 2014 10:14:00 AM org.hibernate.hql.internal.ast.ASTQueryTranslatorFactory <init>
INFO: HHH000397: Using ASTQueryTranslatorFactory
Aug 14, 2014 10:14:00 AM org.hibernate.tool.hbm2ddl.SchemaUpdate execute
INFO: HHH000228: Running hbm2ddl schema update
Aug 14, 2014 10:14:00 AM org.hibernate.tool.hbm2ddl.SchemaUpdate execute
INFO: HHH000102: Fetching database metadata
Aug 14, 2014 10:14:00 AM org.hibernate.tool.hbm2ddl.SchemaUpdate execute
INFO: HHH000396: Updating schema
Aug 14, 2014 10:14:00 AM org.hibernate.tool.hbm2ddl.DatabaseMetadata getTableMetadata
INFO: HHH000262: Table not found: bankbranchcontactdetails
Aug 14, 2014 10:14:00 AM org.hibernate.tool.hbm2ddl.DatabaseMetadata getTableMetadata
INFO: HHH000262: Table not found: bankbranchcontactdetails
Aug 14, 2014 10:14:00 AM org.hibernate.tool.hbm2ddl.DatabaseMetadata getTableMetadata
INFO: HHH000262: Table not found: bankbranchcontactdetails
Aug 14, 2014 10:14:00 AM org.hibernate.tool.hbm2ddl.SchemaUpdate execute
ERROR: HHH000388: Unsuccessful: create table stserptest.bankbranchcontactdetails (BankBranchContactId INT(10) UNSIGNED not null auto_increment, BankBranchId INT(10) UNSIGNED not null, Contact VARCHAR(20) not null, ContactTypeModified ENUM('PHONE','MOBILE','FAX','TELEX') not null, EntryDate TIMESTAMP, MyCompanyId INT(10) UNSIGNED not null, NewField INT(10) UNSIGNED, UserId INT(10) UNSIGNED, isDeleted ENUM('YES','NO'), primary key (BankBranchContactId))
Aug 14, 2014 10:14:00 AM org.hibernate.tool.hbm2ddl.SchemaUpdate execute
ERROR: Table 'bankbranchcontactdetails' already exists
Aug 14, 2014 10:14:00 AM org.hibernate.tool.hbm2ddl.SchemaUpdate execute
INFO: HHH000232: Schema update complete
Hibernate:
insert
into
stserptest.bankbranchcontactdetails
(BankBranchId, Contact, ContactTypeModified, EntryDate, MyCompanyId, NewField, UserId, isDeleted)
values
(?, ?, ?, ?, ?, ?, ?, ?)
Aug 14, 2014 10:14:00 AM org.hibernate.engine.jdbc.spi.SqlExceptionHelper logExceptions
WARN: SQL Error: 1054, SQLState: 42S22
Aug 14, 2014 10:14:00 AM org.hibernate.engine.jdbc.spi.SqlExceptionHelper logExceptions
ERROR: Unknown column 'ContactTypeModified' in 'field list'

Hibernate can modify the db structure if you set it into update mode
<property name="hbm2ddl.auto">update</property>
However it might be better to use something like liquibase or Flyaway that will keep track of the versioning of the tables over time.
In my experience relying on hibernate to keep the schema in sync with the entity models won't work in the long run, especially if you have any kind of branching in your project. You would be opening yourself up for dataloss, unless you instruct it on how to mutate the columns to preserve all of the information inside. Hibernate can very well just choose to drop a column and add a new one, when all you wanted was to rename; this would be bad.
However if you are using an embedded in-memory db (like hsqldb) and do not care about persisting data between executions, then yes you can simply setup hibernate to use the create or create-drop mode and it will construct the tables to match your entities.

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