Develop Reference

"java.lang.IllegalArgumentException: Unable to locate Attribute with the the given name", although attribute is set

Hibernate 5.6 with Spring 5.3 here.
When creating predicates to fetch data from a table with this code:
CriteriaBuilder cb = this.getSession().getCriteriaBuilder();
CriteriaQuery cq = cb.createQuery(aliasToBeanClass);
Root root = cq.from(aliasToBeanClass); // aliasToBeanClass is set to UmsUserRoleVOImpl
predicates.add(cb.equal(root.get(key), value)); // key is set to "userName" - this line is causing the exception
I get this error:
java.lang.IllegalArgumentException: Unable to locate Attribute with
the the given name [userName] on this ManagedType
[com.myapp.ums.business.impl.UmsUserRoleVOImpl]
But the attribute userName is included in my VO, as well as a public setter and it's mapped in my .hbm.xml file:
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
<class name="com.myapp.ums.business.impl.UmsUserRoleVOImpl" table="ums_t_user_role"
proxy="com.myapp.ums.common.business.UmsUserRoleVO">
<composite-id>
<key-property name="userName" type="java.lang.String" column="fk_user_id"/>
<key-property name="roleName" type="java.lang.String" column="fk_role_id"/>
</composite-id>
</class>
</hibernate-mapping>
This is my VO:
public class UmsUserRoleVOImpl extends AbstractBasePropertiesImpl implements UmsUserRoleVO {
private static final long serialVersionUID = 2393634151578825216L;
private String roleName;
private String userName;
private List<PmPropertyVO> properties;
public UmsUserRoleVOImpl() {
}
#Get(AbstractBaseProperties.ROWGUID)
#Override
public Long getRowguid() {
return super.getRowguid();
}
#Set(AbstractBaseProperties.ROWGUID)
#Override
public void setRowguid(final Long rowguid) {
super.setRowguid(rowguid);
}
#Get(UmsUserRoleVO.ROLE_NAME)
public String getRoleName() {
return roleName;
}
#Set(UmsUserRoleVO.ROLE_NAME)
public void setRoleName(String roleName) {
this.roleName = roleName;
}
#GetCollection(value = UmsUserRoleVO.PROPERTIES, defaultObject = "com.myapp.pm.business.impl.PmPropertyVOImpl")
public List<PmPropertyVO> getProperties() {
return properties;
}
#SetCollection(value = UmsUserRoleVO.PROPERTIES, defaultObject = "com.myapp.pm.business.impl.PmPropertyVOImpl")
public void setProperties(List<PmPropertyVO> properties) {
this.properties = properties;
}
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (!(o instanceof UmsUserRoleVOImpl)) {
return false;
}
UmsUserRoleVOImpl user = (UmsUserRoleVOImpl) o;
if (!(roleName.equals(user.getRoleName()))) {
return false;
}
return userName.equals(user.getUserName());
}
public int hashCode() {
int result = 17;
result = 29 * result + (roleName != null ? roleName.hashCode() : 0);
result = 29 * result + (userName != null ? userName.hashCode() : 0);
return result;
}
public String toString() {
return roleName + " " + userName;
}
#Get(UmsUserRoleVO.USER_NAME)
public String getUserName() {
return this.userName;
}
#Set(UmsUserRoleVO.USER_NAME)
public void setUserName(String userName) {
this.userName = userName;
}
There seems to be something wrong with the mapping, because Hibernate does not find any attribute of the UmsUserRoleVOImpl:
Any idea what could be causing this error?

How to solve hibernate composite key exception (expecting IdClass mapping)?

This question has been asked here before but none of the solutions are working for me.
I am getting following error due to composite key in my SQL Server 2008 table.
java.lang.ExceptionInInitializerError
at HB.Main.<clinit>(Main.java:30)
Caused by: java.lang.IllegalArgumentException: expecting IdClass mapping
at org.hibernate.metamodel.internal.AttributeFactory$3.resolveMember(AttributeFactory.java:977)
at org.hibernate.metamodel.internal.AttributeFactory$5.resolveMember(AttributeFactory.java:1035)
at org.hibernate.metamodel.internal.AttributeFactory.determineAttributeMetadata(AttributeFactory.java:450)
at org.hibernate.metamodel.internal.AttributeFactory.buildIdAttribute(AttributeFactory.java:139)
at org.hibernate.metamodel.internal.MetadataContext.buildIdClassAttributes(MetadataContext.java:388)
at org.hibernate.metamodel.internal.MetadataContext.applyIdMetadata(MetadataContext.java:318)
at org.hibernate.metamodel.internal.MetadataContext.wrapUp(MetadataContext.java:221)
at org.hibernate.metamodel.internal.MetamodelImpl.initialize(MetamodelImpl.java:274)
at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:305)
at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:462)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:708)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:724)
at HB.Main.<clinit>(Main.java:26)
Exception in thread "main"
my table looks like this
The classes and mapping is as follows:
Entity Class
package HB;
import java.util.Objects;
public class EmMonthlyPollTablesEntity
{
private int monthlyPollId;
private int tableId;
public int getMonthlyPollId()
{
return monthlyPollId;
}
public void setMonthlyPollId(int monthlyPollId)
{
this.monthlyPollId = monthlyPollId;
}
public int getTableId()
{
return tableId;
}
public void setTableId(int tableId)
{
this.tableId = tableId;
}
#Override
public boolean equals(Object o)
{
if (this == o)
return true;
if (o == null || getClass() != o.getClass())
return false;
EmMonthlyPollTablesEntity that = (EmMonthlyPollTablesEntity) o;
return monthlyPollId == that.monthlyPollId && tableId == that.tableId;
}
#Override
public int hashCode()
{
return Objects.hash(monthlyPollId, tableId);
}
}
ID Class
package HB;
import java.io.Serializable;
import java.util.Objects;
public class EmMonthlyPollTablesEntityPK implements Serializable
{
private int monthlyPollId;
private int tableId;
public EmMonthlyPollTablesEntityPK()
{
}
public EmMonthlyPollTablesEntityPK(int monthlyPollId, int tableId)
{
this.monthlyPollId = monthlyPollId;
this.tableId = tableId;
}
public int getMonthlyPollId()
{
return monthlyPollId;
}
public void setMonthlyPollId(int monthlyPollId)
{
this.monthlyPollId = monthlyPollId;
}
public int getTableId()
{
return tableId;
}
public void setTableId(int tableId)
{
this.tableId = tableId;
}
#Override
public boolean equals(Object o)
{
if (this == o)
return true;
if (o == null || getClass() != o.getClass())
return false;
EmMonthlyPollTablesEntityPK that = (EmMonthlyPollTablesEntityPK) o;
return monthlyPollId == that.monthlyPollId && tableId == that.tableId;
}
#Override
public int hashCode()
{
return Objects.hash(monthlyPollId, tableId);
}
}
Main Class
package HB;
import org.hibernate.HibernateException;
import org.hibernate.Metamodel;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
import org.hibernate.query.Query;
import javax.persistence.metamodel.EntityType;
public class Main
{
private static final SessionFactory ourSessionFactory;
static
{
try
{
Configuration configuration = new Configuration();
configuration.setProperty("hibernate.connection.username", "sa");
configuration.setProperty("hibernate.connection.password", "");
configuration.configure();
ourSessionFactory = configuration.buildSessionFactory();
}
catch (Throwable ex)
{
throw new ExceptionInInitializerError(ex);
}
}
public static Session getSession() throws HibernateException
{
return ourSessionFactory.openSession();
}
public static void main(final String[] args) throws Exception
{
final Session session = getSession();
try
{
System.out.println("querying all the managed entities...");
final Metamodel metamodel = session.getSessionFactory().getMetamodel();
for (EntityType<?> entityType : metamodel.getEntities())
{
try
{
final String entityName = entityType.getName();
final Query query = session.createQuery("from " + entityName);
System.out.println("executing: " + query.getQueryString());
for (Object o : query.list())
{
try
{
System.out.println(" " + o);
}
catch (Exception ex)
{
ex.printStackTrace();
;
}
}
}
catch (Exception ex)
{
ex.printStackTrace();
;
}
}
}
finally
{
session.close();
}
}
}
Mapping
<?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="HB.EmMonthlyPollTablesEntity" table="EM_MONTHLY_POLL_TABLES" schema="dbo" catalog="HB2">
<composite-id mapped="true" class="HB.EmMonthlyPollTablesEntityPK">
<key-property name="monthlyPollId">
<column name="MONTHLY_POLL_ID" sql-type="int"/>
</key-property>
<key-property name="tableId">
<column name="TABLE_ID" sql-type="int"/>
</key-property>
</composite-id>
</class>
</hibernate-mapping>
Entire Intellij Idea Project and table script can be downloaded from here

There is a bug in Hibernate composite id's defined via hbm.xml cause java.lang.IllegalArgumentException in JPA deployment
Root cause
In JPA the composite id must be embeddable. Because the EmMonthlyPollTablesEntityPK class is not embeddable and that is not a component the JPA environment will never support that.
Solution 1: Workaround
Disable metamodel population in hibernate.cfg.xml
<hibernate-configuration>
<session-factory>
<property name="hibernate.ejb.metamodel.population">disabled</property>
<mapping class="..."/>
<!-- ... -->
</session-factory>
</hibernate-configuration>
Solution 2: Drop HBM Mappings and use annotations
As I know HBM mappings are deprecated and will be removed in a future version of Hibernate.
In this case you can choose between using Composite Id, IdClass and EmbeddedId approaches. The following example uses EmbeddedId
Entity class
#Entity
#Table(name = "EM_MONTHLY_POLL_TABLES")
public class EmMonthlyPollTablesEntity implements Serializable {
#EmbeddedId
private EmMonthlyPollTablesEntityPK id;
#Column(name = "NAME")
private String name;
public EmMonthlyPollTablesEntityPK getId() {
return id;
}
public void setId(EmMonthlyPollTablesEntityPK id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
#Override
public boolean equals(Object o) {
if (this == o) return true;
if (!(o instanceof EmMonthlyPollTablesEntity)) return false;
EmMonthlyPollTablesEntity that = (EmMonthlyPollTablesEntity) o;
return id.equals(that.id) &&
Objects.equals(name, that.name);
}
#Override
public int hashCode() {
return Objects.hash(id, name);
}
}
PK class
#Embeddable
public class EmMonthlyPollTablesEntityPK implements Serializable {
#Column(name = "MONTHLY_POLL_ID", nullable = false)
private int monthlyPollId;
#Column(name = "TABLE_ID", nullable = false)
private int tableId;
public EmMonthlyPollTablesEntityPK() {
}
public EmMonthlyPollTablesEntityPK(int monthlyPollId, int tableId) {
this.monthlyPollId = monthlyPollId;
this.tableId = tableId;
}
public int getMonthlyPollId() {
return monthlyPollId;
}
public void setMonthlyPollId(int monthlyPollId) {
this.monthlyPollId = monthlyPollId;
}
public int getTableId() {
return tableId;
}
public void setTableId(int tableId) {
this.tableId = tableId;
}
#Override
public boolean equals(Object o) {
if (this == o)
return true;
if (o == null || getClass() != o.getClass())
return false;
EmMonthlyPollTablesEntityPK that = (EmMonthlyPollTablesEntityPK) o;
return monthlyPollId == that.monthlyPollId && tableId == that.tableId;
}
#Override
public int hashCode() {
return Objects.hash(monthlyPollId, tableId);
}
}
Delegating PK's getters and setters are available of course.
In this case you don't have to disable metamodel population and you can drop HBM mapping resource from hibernate.cfg.xml
Although I know migrating a huge legacy codebase to JPA annotations and XML mappings is very exhausting I'm sure that is the way to go.

Hibernate not using defined sequence (postgresql)

I'm trying to insert mapped object to postgresql database with correct id. This is how i insert:
Session session = Main.getSession();
Transaction rx = session.beginTransaction();
ProductsEntity productsEntity = new ProductsEntity();
productsEntity.setName(nameTextField.getText());
productsEntity.setDescription(descriptionTextArea.getText());
productsEntity.setCategory((ProductCategoriesEntity) categoryComboBox.getSelectedItem());
productsEntity.setPrice(new BigDecimal(1.0));
session.save(productsEntity);
tx.commit();
session.close();
Class with defined sequence:
#Entity
#Table(name = "products", schema = "public", catalog = "shop")
public class ProductsEntity {
private int id;
private String name;
private String description;
private BigDecimal price;
#Id
#Column(name = "id", nullable = false)
#SequenceGenerator(name="pk_sequence",sequenceName="products_id_seq")
#GeneratedValue(strategy=GenerationType.AUTO,generator="pk_sequence")
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
#Basic
#Column(name = "name", nullable = false, length = -1)
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
#Basic
#Column(name = "description", nullable = false, length = -1)
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
#Basic
#Column(name = "price", nullable = false, precision = 2)
public BigDecimal getPrice() {
return price;
}
public void setPrice(BigDecimal price) {
this.price = price;
}
#Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
ProductsEntity that = (ProductsEntity) o;
if (id != that.id) return false;
if (name != null ? !name.equals(that.name) : that.name != null) return false;
if (description != null ? !description.equals(that.description) : that.description != null) return false;
if (price != null ? !price.equals(that.price) : that.price != null) return false;
return true;
}
#Override
public int hashCode() {
int result = id;
result = 31 * result + (name != null ? name.hashCode() : 0);
result = 31 * result + (description != null ? description.hashCode() : 0);
result = 31 * result + (price != null ? price.hashCode() : 0);
return result;
}
private ProductCategoriesEntity category;
#ManyToOne
public ProductCategoriesEntity getCategory() {
return category;
}
public void setCategory(ProductCategoriesEntity category) {
this.category = category;
}
}
Last value of postgresql sequence products_id_seq is 4. Hibernate is inserting object with id=0, so first insert was successful, now I'm getting unique constraint violation.
EDIT
I've made sequence work by adding generator
<generator class="identity"/>
in xml mapping definition
<?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="entities.ProductsEntity" table="products" schema="public" catalog="shop">
<id name="id">
<column name="id" sql-type="integer"/>
<generator class="identity"/>
</id>
<property name="name">
<column name="name" sql-type="varchar"/>
</property>
<property name="description">
<column name="description" sql-type="varchar"/>
</property>
<property name="price">
<column name="price" sql-type="numeric(9,2)" precision="9" scale="2"/>
</property>
<many-to-one name="category" column="category_id" class="entities.ProductCategoriesEntity" lazy="false"/>
</class>
</hibernate-mapping>
This works without defining sequence in class. I've also tried to use
#GeneratedValue(strategy=GenerationType.IDENTITY)
in class file but it doesn't work.
If someone has an idea please tell me why only "xml" method works.

Is the sequence "products_id_seq" a DB Sequence?
If Yes, then change your GenerationType from Auto to SEQUENCE.
I've a similar setup with Postgres and setting GenerationType as SEQUENCE and giving allocationSize = 1 worked for me.
Also, ensure your sequence is upto date with the table. If not, Alter the sequence for now so your further updates will not fail.

Hibernate Composite Primary Key Issue while Saving entity Object

I am trying to save entity using hibernate, But somehow not able to see the record in database table, there is no exception is generated.
My Table, Class and hbm.xml file mapping are as follow.
Table : Table has composite primary key as id and mobile columns.
CREATE TABLE `student` (
`id` int(11) NOT NULL AUTO_INCREMENT ,
`mobile` varchar(10) COLLATE utf8_unicode_ci NOT NULL DEFAULT '',
`name` varchar(40) COLLATE utf8_unicode_ci NOT NULL DEFAULT '',
PRIMARY KEY (`id`,`mobile`)
);
Classes :
public class StudentPk implements Serializable {
private Integer id;
private String mobile;
public StudentPk() {
super();
}
public StudentPk(Integer id, String mobile) {
super();
this.id = id;
this.mobile = mobile;
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getMobile() {
return mobile;
}
public void setMobile(String mobile) {
this.mobile = mobile;
}
#Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((id == null) ? 0 : id.hashCode());
result = prime * result + ((mobile == null) ? 0 : mobile.hashCode());
return result;
}
#Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
StudentPk other = (StudentPk) obj;
if (id == null) {
if (other.id != null)
return false;
} else if (!id.equals(other.id))
return false;
if (mobile == null) {
if (other.mobile != null)
return false;
} else if (!mobile.equals(other.mobile))
return false;
return true;
}
}
class Student{
private StudentPk pk;
private String name;
--getter-setter-
}
Hibernate Mapping :
<class name="com.Student" table="student" proxy="com.Student">
<composite-id name="id" class="com.StudentPk" >
<key-property name="id" type="java.lang.Integer" column ="id"/>
<key-property name="mobile" type="string" column ="mobile" />
</composite-id>
<property name="name" column="name" type="string" />
</class>
I have also map this hbm.xml file in hibernate.cfg.xml file too.
Please help me for this.

The are few rules you have to keep in mind when writing Primary key class:
The primary key class must be public and must have a public no-arg constructor.
The primary key class must be serializable.
The primary key class must define equals and hashCode methods.

Java Hibernate - IllegalArgumentException

I have these 2 classes - Letadlo and Letiste (Plane and (Home)Airport). While saving data to DB, using java and hibernate , I'm getting this exception:
16285 [Thread-2] ERROR org.hibernate.property.BasicPropertyAccessor - IllegalArgumentException in class: mapy.Letiste, getter method of property: id
org.hibernate.PropertyAccessException: IllegalArgumentException occurred calling getter of mapy.Letiste.id
at org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:198)
at org.hibernate.tuple.entity.AbstractEntityTuplizer.getIdentifier(AbstractEntityTuplizer.java:227)
at org.hibernate.persister.entity.AbstractEntityPersister.getIdentifier(AbstractEntityPersister.java:3876)
at org.hibernate.persister.entity.AbstractEntityPersister.isTransient(AbstractEntityPersister.java:3584)
at org.hibernate.engine.ForeignKeys.isTransient(ForeignKeys.java:203)
at org.hibernate.engine.ForeignKeys$Nullifier.isNullifiable(ForeignKeys.java:159)
at org.hibernate.engine.ForeignKeys$Nullifier.nullifyTransientReferences(ForeignKeys.java:91)
at org.hibernate.engine.ForeignKeys$Nullifier.nullifyTransientReferences(ForeignKeys.java:69)
at org.hibernate.event.def.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:310)
at org.hibernate.event.def.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:203)
at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:129)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:210)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:195)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.performSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:117)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:93)
at org.hibernate.impl.SessionImpl.fireSaveOrUpdate(SessionImpl.java:685)
at org.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:677)
at org.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:673)
at logika.UkladaniDoDtb.run(UkladaniDoDtb.java:34)
at java.lang.Thread.run(Thread.java:744)
Caused by: java.lang.IllegalArgumentException: object is not an instance of declaring class
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:172)
... 19 more
Saving part:
HibernateFactory.buildSessionFactory();
Session session = HibernateFactory.openSession();
session.beginTransaction().begin();
for(Object o: DocasneUloziste.objektyKeSmazani){
session.delete(o);
}
for (Linka l : DocasneUloziste.linky) {
session.saveOrUpdate(l);
}
for (Letadlo l : DocasneUloziste.letadla) { //this is 34 line
session.saveOrUpdate(l);
}
for (Letiste d : DocasneUloziste.seznamLetist) {
session.saveOrUpdate(d);
}
session.getTransaction().commit();
session.close();
xml of Letadlo:
<class name="mapy.Letiste">
<meta attribute="class-description">Tato trida obsahuje info o domovskem letisti</meta>
<id name="id" type="long" column="LETISTE_ID">
<generator class="native" />
</id>
<property name="kodLetiste" type="string" not-null="true" length="3" column="KOD_LETISTE"/>
<property name="mesto" type="string" not-null="true" length="35" column="MESTO" />
<set name="obsluhaLetadel" cascade="all">
<key column="LETISTE_ID" />
<one-to-many class="mapy.Letadlo" />
</set>
</class>
xml of Letiste:
<class name="mapy.Letiste">
<meta attribute="class-description">Tato trida obsahuje info o domovskem letisti</meta>
<id name="id" type="long" column="LETISTE_ID">
<generator class="native" />
</id>
<property name="kodLetiste" type="string" not-null="true" length="3" column="KOD_LETISTE"/>
<property name="mesto" type="string" not-null="true" length="35" column="MESTO" />
<set name="obsluhaLetadel" cascade="all">
<key column="LETISTE_ID" />
<one-to-many class="mapy.Letadlo" />
</set>
</class>
Class of letadlo contains all variables with getter and setters I had in XML and constructor with no parameter.
Thanks for any suggestion!
EDIT: Letiste Class
public class Letiste {
private Long id;
private String kodLetiste;
private String mesto;
private Set<Letadlo> obsluhaLetadel = new HashSet<Letadlo>();
public Letiste() {
}
public Letiste(String kodLetiste, String mesto) {
this.kodLetiste = kodLetiste;
this.mesto = mesto;
}
public String getKodLetiste() {
return kodLetiste;
}
public void setKodLetiste(String kodLetiste) {
this.kodLetiste = kodLetiste;
}
public String getMesto() {
return mesto;
}
public void setMesto(String mesto) {
this.mesto = mesto;
}
#Override
public boolean equals(Object obj) {
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
final Letiste other = (Letiste) obj;
if ((this.kodLetiste == null) ? (other.kodLetiste != null) : !this.kodLetiste.equals(other.kodLetiste)) {
return false;
}
if ((this.mesto == null) ? (other.mesto != null) : !this.mesto.equals(other.mesto)) {
return false;
}
return true;
}
#Override
public int hashCode() {
int hash = 7;
hash = 13 * hash + (this.kodLetiste != null ? this.kodLetiste.hashCode() : 0);
hash = 13 * hash + (this.mesto != null ? this.mesto.hashCode() : 0);
return hash;
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public Set<Letadlo> getObsluhaLetadel() {
return obsluhaLetadel;
}
public void setObsluhaLetadel(Set<Letadlo> obsluhaLetadel) {
this.obsluhaLetadel = obsluhaLetadel;
}
EDIT: Letadlo Class
public class Letadlo {
private Long id;
private String kodLetadla;
private String kapacita;
private Integer dolet;
private Set<Linka> seznamLinek = new HashSet<Linka>();
private String letiste;
public Letadlo() {
}
public Letadlo(String kodLetadla, String kapacita , Integer dolet, String letiste) {
this.kodLetadla = kodLetadla;
this.kapacita = kapacita;
this.dolet = dolet;
this.letiste = letiste;
}
/**
* #return the kodLetadla
*/
public String getKodLetadla() {
return kodLetadla;
}
/**
* #param kodLetadla the kodLetadla to set
*/
public void setKodLetadla(String kodLetadla) {
this.kodLetadla = kodLetadla;
}
/**
* #return the kapacita
*/
public String getKapacita() {
return kapacita;
}
/**
* #param kapacita the kapacita to set
*/
public void setKapacita(String kapacita) {
this.kapacita = kapacita;
}
/**
* #return the dolet
*/
public Integer getDolet() {
return dolet;
}
/**
* #param dolet the dolet to set
*/
public void setDolet(Integer dolet) {
this.dolet = dolet;
}
#Override
public boolean equals(Object obj) {
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
final Letadlo other = (Letadlo) obj;
if (this.kodLetadla != other.kodLetadla && (this.kodLetadla == null || !this.kodLetadla.equals(other.kodLetadla))) {
return false;
}
return true;
}
#Override
public int hashCode() {
int hash = 7;
hash = 79 * hash + (this.kodLetadla != null ? this.kodLetadla.hashCode() : 0);
hash = 79 * hash + (this.kapacita != null ? this.kapacita.hashCode() : 0);
hash = 79 * hash + (this.dolet != null ? this.dolet.hashCode() : 0);
return hash;
}
/**
* #return the id
*/
public Long getId() {
return id;
}
/**
* #param id the id to set
*/
public void setId(Long id) {
this.id = id;
}
/**
* #return the seznamLinek
*/
public Set<Linka> getSeznamLinek() {
return seznamLinek;
}
/**
* #param seznamLinek the seznamLinek to set
*/
public void setSeznamLinek(Set<Linka> seznamLinek) {
this.seznamLinek = seznamLinek;
}
/**
* #return the letiste
*/
public String getLetiste() {
return letiste;
}
/**
* #param letiste the letiste to set
*/
public void setLetiste(String letiste) {
this.letiste = letiste;
}