i have done one to one mapping in hibernate 3 with annotation,
i have tow tables 'group' and 'category' . categories are predefined.
when user choose category and group ,CategoryId and goupid should insert in group table only.
So how should to mapping.
my bean classes are following:
Categories:
#Entity
#Table(name = "biz_categories")
public class Categories implements Serializable {
private static final long serialVersionUID = -8422954389102945506L;
#Id
#Column(name = "CategoryId")
private Integer categoryId;
#Column(name = "CategoryName")
private String categoryName;
#Column(name = "CategoryDescription")
private String categoryDescription;
#Column(name = "CreatedBy")
private String createdBy;
#Column(name = "UpdatedBy")
private String updatedBy;
#Column(name = "CreatedDate")
private Date createdDate;
#Column(name = "UpadtedDate")
private Date upadatedDate;
#Column(name = "ActiveFlag")
private int activeFlag;
public void setCategoryName(String categoryName) {
this.categoryName = categoryName;
}
public String getCategoryName() {
return categoryName;
}
public void setCategoryDescription(String categoryDescription) {
this.categoryDescription = categoryDescription;
}
public String getCategoryDescription() {
return categoryDescription;
}
public void setCreatedBy(String createdBy) {
this.createdBy = createdBy;
}
public String getCreatedBy() {
return createdBy;
}
public void setUpdatedBy(String updatedBy) {
this.updatedBy = updatedBy;
}
public String getUpdatedBy() {
return updatedBy;
}
public void setUpadatedDate(Date upadatedDate) {
this.upadatedDate = upadatedDate;
}
public Date getUpadatedDate() {
return upadatedDate;
}
public void setActiveFlag(int activeFlag) {
this.activeFlag = activeFlag;
}
public int getActiveFlag() {
return activeFlag;
}
public void setCreatedDate(Date createdDate) {
this.createdDate = createdDate;
}
public Date getCreatedDate() {
return createdDate;
}
public void setCategoryId(Integer categoryId) {
this.categoryId = categoryId;
}
public Integer getCategoryId() {
return categoryId;
}
}
Group:
#Entity
#Table(name = "biz_facilitygroups")
public class Groups implements Serializable {
private static final long serialVersionUID = 1L;
#Id
#Column(name = "GroupId")
#GeneratedValue
private Integer groupId;
#Column(name = "CategoryId")
private int categoryId;
#Column(name = "GroupName")
private String groupName;
#Column(name = "Description")
private String description;
#Column(name = "CreatedBy")
private String createdBy;
#Column(name = "UpdatedBy")
private String updatedBy;
#Column(name = "CreatedDate")
private Date createdDate;
#Column(name = "UpadtedDate")
private Date upadatedDate;
#Column(name = "ActiveFlag")
private int activeFlag;
#OneToOne(targetEntity=Categories.class,cascade=CascadeType.ALL)
#JoinColumn(name="CategoryId")
private Categories categories;
public Integer getGroupId() {
return groupId;
}
public void setGroupId(Integer groupId) {
this.groupId = groupId;
}
public String getGroupName() {
return groupName;
}
public void setGroupName(String groupName) {
this.groupName = groupName;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
public String getCreatedBy() {
return createdBy;
}
public void setCreatedBy(String createdBy) {
this.createdBy = createdBy;
}
public String getUpdatedBy() {
return updatedBy;
}
public void setUpdatedBy(String updatedBy) {
this.updatedBy = updatedBy;
}
public Date getCreatedDate() {
return createdDate;
}
public void setCreatedDate(Date createdDate) {
this.createdDate = createdDate;
}
public Date getUpadatedDate() {
return upadatedDate;
}
public void setUpadatedDate(Date upadatedDate) {
this.upadatedDate = upadatedDate;
}
public int getActiveFlag() {
return activeFlag;
}
public void setActiveFlag(int activeFlag) {
this.activeFlag = activeFlag;
}
public static long getSerialversionuid() {
return serialVersionUID;
}
public void setCategoryId(int categoryId) {
this.categoryId = categoryId;
}
public int getCategoryId() {
return categoryId;
}
public void setCategories(Categories categories) {
this.categories = categories;
}
public Categories getCategories() {
return categories;
}
}
Just another property to class relation is needed.
First of all, relation must be satisfied in the database. A foreign key should be added. I assume that direction of relation is from Group to Category. Add a foreign key to Group table. Relation must be satisfied between foreign key and CategoryId.
Add a property for the relation to Group entity.
#OneToOne(cascade = { CascadeType.PERSIST, CascadeType.MERGE })
#JoinColumn(name = "foreing_key_of_category")
private Category category;
Related
I'm using hibernate-core in a maven project and I want to create the entities for the following database: db_schema
I'm just starting to learn hibernate, so please bear with me on this one. I know that it might be a stupid mistake but I just can't figure it out.
I'm getting the following exception when I try to test the code:
org.hibernate.AnnotationException: Use of #OneToMany or #ManyToMany targeting an unmapped class: entity.User.groups[entity.IsIn]
I will list the code for my entities below
User
package entity;
import javax.persistence.*;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
#Entity
#Table(name = "user")
public class User {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
#Column(name = "userId")
private int userId;
#OneToMany(
mappedBy = "user",
cascade = CascadeType.ALL,
orphanRemoval = true
)
private List<IsIn> groups = new ArrayList<>();
#Column(name = "customerName", nullable = false)
private String customerName;
#Column(name = "password", nullable = false)
private String password;
#Column(name = "email", nullable = false)
private String email;
#Column(name = "is_active", nullable = false)
private boolean is_active;
#Column(name = "notificationType", nullable = false)
private String notificationType;
#Column(name = "create_date", nullable = false)
private String create_date;
public User() { }
public User(String customerName, String password, String email, boolean is_active, String notificationType, String create_date) {
this.customerName = customerName;
this.password = password;
this.email = email;
this.is_active = is_active;
this.notificationType = notificationType;
this.create_date = create_date;
}
public void addGroup(Group group) {
IsIn isIn = new IsIn(this, group);
groups.add(isIn);
}
public void removeGroup(Group group) {
for (Iterator<IsIn> iterator = groups.iterator();
iterator.hasNext(); ) {
IsIn isIn = iterator.next();
if (isIn.getUser().equals(this) &&
isIn.getGroup().equals(group)) {
iterator.remove();
isIn.setUser(null);
isIn.setGroup(null);
}
}
}
public int getUserId() {
return userId;
}
public void setUserId(int userId) {
this.userId = userId;
}
public String getCustomerName() {
return customerName;
}
public void setCustomerName(String customerName) {
this.customerName = customerName;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public boolean isIs_active() {
return is_active;
}
public void setIs_active(boolean is_active) {
this.is_active = is_active;
}
public String getNotificationType() {
return notificationType;
}
public void setNotificationType(String notificationType) {
this.notificationType = notificationType;
}
public String getCreate_date() {
return create_date;
}
public void setCreate_date(String create_date) {
this.create_date = create_date;
}
}
Group
package entity;
import org.hibernate.annotations.NaturalIdCache;
import javax.persistence.*;
import java.util.Objects;
#Entity
#Table(name = "group")
#NaturalIdCache
public class Group {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
#Column(name = "groupId")
private int groupId;
#Column(name = "groupName")
private String groupName;
#Column(name = "notificationMessage", nullable = false)
private String notificationMessage;
#Column(name = "create_date", nullable = false)
private String create_date;
#OneToOne
#JoinColumn(name = "created_by")
private User created_by;
#Column(name = "isPrivate")
private boolean isPrivate;
public Group() { }
public Group(String groupName, String notificationMessage, String create_date, boolean isPrivate) {
this.groupName = groupName;
this.notificationMessage = notificationMessage;
this.create_date = create_date;
this.isPrivate = isPrivate;
}
#Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass())
return false;
Group group = (Group) o;
return Objects.equals(groupId, group.getGroupId());
}
#Override
public int hashCode() { return Objects.hash(groupId); }
public int getGroupId() {
return groupId;
}
public void setGroupId(int groupId) {
this.groupId = groupId;
}
public String getGroupName() {
return groupName;
}
public void setGroupName(String groupName) {
this.groupName = groupName;
}
public String getNotificationMessage() { return notificationMessage; }
public void setNotificationMessage(String notificationMessage) {
this.notificationMessage = notificationMessage;
}
public String getCreate_date() {
return create_date;
}
public void setCreate_date(String create_date) {
this.create_date = create_date;
}
public boolean isPrivate() {
return isPrivate;
}
public void setPrivate(boolean aPrivate) {
isPrivate = aPrivate;
}
public User getCreated_by() {
return created_by;
}
public void setCreated_by(User created_by) {
this.created_by = created_by;
}
}
UserGroupId (Embeddable)
package Embedded;
import javax.persistence.Column;
import javax.persistence.Embeddable;
import java.io.Serializable;
import java.util.Objects;
#Embeddable
public class UserGroupId implements Serializable {
#Column(name = "userId")
private int userId;
#Column(name = "groupId")
private int groupId;
private UserGroupId() {}
public UserGroupId(int userId, int groupId) {
this.userId = userId;
this.groupId = groupId;
}
#Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass())
return false;
UserGroupId that = (UserGroupId) o;
return Objects.equals(userId, that.userId) &&
Objects.equals(groupId, that.groupId);
}
#Override
public int hashCode() {
return Objects.hash(userId, groupId);
}
}
IsIn
package entity;
import Embedded.UserGroupId;
import javax.persistence.*;
import java.util.Objects;
#Entity
#Table(name = "isin")
public class IsIn {
#EmbeddedId
private UserGroupId id;
#ManyToOne(fetch = FetchType.LAZY)
#MapsId("userId")
private User user;
#ManyToOne(fetch = FetchType.LAZY)
#MapsId("groupId")
private Group group;
#OneToOne
#JoinColumn(name = "typeId")
private UserType typeId;
#Column(name = "isBlocked", nullable = false)
private boolean isBlocked;
private IsIn() {}
public IsIn(User user, Group group) {
this.user = user;
this.group = group;
this.id = new UserGroupId(user.getUserId(), group.getGroupId());
}
#Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass())
return false;
IsIn that = (IsIn) o;
return Objects.equals(user, that.user) &&
Objects.equals(group, that.group);
}
#Override
public int hashCode() {
return Objects.hash(user, group);
}
public User getUser() {
return user;
}
public Group getGroup() {
return group;
}
public void setUser(User user) {
this.user = user;
}
public void setGroup(Group group) {
this.group = group;
}
public UserType getTypeId() {
return typeId;
}
public void setTypeId(UserType typeId) {
this.typeId = typeId;
}
public boolean isBlocked() {
return isBlocked;
}
public void setBlocked(boolean blocked) {
isBlocked = blocked;
}
}
Privilege
package entity;
import javax.persistence.*;
import java.util.HashSet;
import java.util.Set;
#Entity
#Table(name = "privilege")
public class Privilege {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
#Column(name = "privilegeId")
private int privilegeId;
#Column(name = "privilegeName", nullable = false)
private String privilegeName;
#ManyToMany(mappedBy = "privilege")
private Set<UserType> usertypes = new HashSet<>();
public Privilege() {}
public Privilege(String privilegeName) {
this.privilegeName = privilegeName;
}
public int getPrivilegeId() {
return privilegeId;
}
public void setPrivilegeId(int privilegeId) {
this.privilegeId = privilegeId;
}
public String getPrivilegeName() {
return privilegeName;
}
public void setPrivilegeName(String privilegeName) { this.privilegeName = privilegeName; }
public Set<UserType> getUsertypes() { return usertypes; }
}
UserType
package entity;
import javax.persistence.*;
import java.util.HashSet;
import java.util.Set;
#Entity
#Table(name = "usertype")
public class UserType {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
#Column(name = "typeId")
private int typeId;
#Column(name = "typeName", nullable = false)
private String typeName;
#ManyToMany(cascade = { CascadeType.ALL })
#JoinTable(
name = "hasprivilege",
joinColumns = { #JoinColumn(name = "typeId") },
inverseJoinColumns = { #JoinColumn(name = "privilegeId") }
)
Set<Privilege> privileges = new HashSet<>();
public UserType() { }
public UserType(String typeName) {
this.typeName = typeName;
}
public int getTypeId() {
return typeId;
}
public void setTypeId(int typeId) {
this.typeId = typeId;
}
public String getTypeName() {
return typeName;
}
public void setTypeName(String typeName) {
this.typeName = typeName;
}
}
Notification
package entity;
import javax.persistence.*;
#Entity
#Table(name = "notification")
public class Notification {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
#Column(name = "notificationId")
private int notificationId;
#Column(name = "notificationMessage", nullable = false)
private String notificationMessage;
#Column(name = "frequency", nullable = false)
private String frequency;
#Column(name = "create_date", nullable = false)
private String create_date;
#Column(name = "update_date", nullable = false)
private String update_date;
public Notification() {}
public Notification(String notificationMessage, String frequency, String create_date, String update_date) {
this.notificationMessage = notificationMessage;
this.frequency = frequency;
this.create_date = create_date;
this.update_date = update_date;
}
public int getNotificationId() {
return notificationId;
}
public void setNotificationId(int notificationId) {
this.notificationId = notificationId;
}
public String getNotificationMessage() {
return notificationMessage;
}
public void setNotificationMessage(String notificationMessage) {
this.notificationMessage = notificationMessage;
}
public String getFrequency() {
return frequency;
}
public void setFrequency(String frequency) {
this.frequency = frequency;
}
public String getCreate_date() {
return create_date;
}
public void setCreate_date(String create_date) {
this.create_date = create_date;
}
public String getUpdate_date() {
return update_date;
}
public void setUpdate_date(String update_date) {
this.update_date = update_date;
}
}
Message
package entity;
import javax.persistence.*;
#Entity
#Table(name = "message")
public class Message {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
#Column(name = "messageId")
private String messageId;
#ManyToOne
#JoinColumn(name = "userId")
private User userId;
#ManyToOne
#JoinColumn(name = "groupId")
private Group groupId;
#Column(name = "message")
private String message;
#Column(name = "create_date")
private String create_date;
#ManyToOne
#JoinColumn(name = "notificationId")
private Notification notificationId;
public Message() { }
public Message(User userId, Group groupId, String message, String create_date, Notification notificationId) {
this.userId = userId;
this.groupId = groupId;
this.message = message;
this.create_date = create_date;
this.notificationId = notificationId;
}
public String getMessageId() {
return messageId;
}
public User getUserId() {
return userId;
}
public Group getGroupId() {
return groupId;
}
public String getMessage() {
return message;
}
public String getCreate_date() {
return create_date;
}
public Notification getNotificationId() {
return notificationId;
}
}
I've been looking on Stack for a solution on similar issues but the suggestions did not help in my case. I'm kinda stuck right now.
Any help will be highly appreciated. Thank your for your time.
I am building an order tracking system in Spring Boot, using Hibernate annotations and Repositories. I have an Order class, which can have a list of OrderItems. These map to a ORDER and ORDER_ITEMS table respectively. The code I have representing the two is below.
Order.java
package net.township.order;
import org.hibernate.annotations.Cascade;
import javax.persistence.*;
import java.util.Date;
import java.util.List;
import java.util.Set;
#Entity
#Table(name = "orders")
public class Order {
public Order() {
}
public Order(long merchantId, String firstDeliveryName, String
lastDeliveryName, String deliveryAddress, String status, Date createDate,
Date updateDate) {
this.merchantId = merchantId;
this.lastDeliveryName = lastDeliveryName;
this.firstDeliveryName = firstDeliveryName;
this.deliveryAddress = deliveryAddress;
this.status = status;
this.createDate = createDate;
this.updateDate = updateDate;
}
#Id
#GeneratedValue(strategy = GenerationType.AUTO)
#Column(name = "order_id", unique = true)
private long orderId;
#Column(name = "merchant_id")
private long merchantId;
#Column(name = "first_delivery_name")
private String firstDeliveryName;
#Column(name = "last_delivery_name")
private String lastDeliveryName;
#Column(name = "delivery_address")
private String deliveryAddress;
#Column
private String status;
#OneToMany(mappedBy = "order", cascade = {
CascadeType.ALL,CascadeType.PERSIST,CascadeType.MERGE })
private List<OrderItem> orderItems;
#Column(name = "create_date")
private Date createDate;
#Column(name = "update_date")
private Date updateDate;
public void setOrderId(long orderId) {
this.orderId = orderId;
}
public long getMerchantId() {
return merchantId;
}
public void setMerchantId(long merchantId) {
this.merchantId = merchantId;
}
public List<OrderItem> getOrderItems() {
return orderItems;
}
public void setOrderItems(List<OrderItem> orderItems) {
this.orderItems = orderItems;
}
public String getLastDeliveryName() {
return lastDeliveryName;
}
public void setLastDeliveryName(String lastDeliveryName) {
this.lastDeliveryName = lastDeliveryName;
}
public Date getUpdateDate() {
return updateDate;
}
public void setUpdateDate(Date updateDate) {
this.updateDate = updateDate;
}
public Long getOrderId() {
return orderId;
}
public void setOrderId(Long orderId) {
this.orderId = orderId;
}
public String getFirstDeliveryName() {
return firstDeliveryName;
}
public void setFirstDeliveryName(String firstDeliveryName) {
this.firstDeliveryName = firstDeliveryName;
}
public String getDeliveryAddress() {
return deliveryAddress;
}
public void setDeliveryAddress(String deliveryAddress) {
this.deliveryAddress = deliveryAddress;
}
public String getStatus() {
return status;
}
public void setStatus(String status) {
this.status = status;
}
public Date getCreateDate() {
return createDate;
}
public void setCreateDate(Date createDate) {
this.createDate = createDate;
}
}
OrderItem.java
package net.township.order;
import com.fasterxml.jackson.annotation.JsonBackReference;
import org.hibernate.annotations.Cascade;
import javax.persistence.*;
#Entity
#Table(name = "order_items")
public class OrderItem {
#Id
#GeneratedValue
#Column(name = "id")
private Long id;
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public Order getOrder() {
return order;
}
public void setOrder(Order order) {
this.order = order;
}
#Column
private String name;
#Column
private String description;
#Column
private Long quantity;
#ManyToOne(fetch=FetchType.LAZY)
#JoinColumn (name="ORDER_ID")
#JsonBackReference
#Cascade(value={org.hibernate.annotations.CascadeType.ALL})
private Order order;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
public Long getQuantity() {
return quantity;
}
public void setQuantity(Long quantity) {
this.quantity = quantity;
}
}
When I POST a new Order from my front-end, it is mapped to an Order object correctly. All OrderItems that were provided in the JSON are present in the object as a List as well. However, after I save it to the database using my OrderRepository's save method (it's just a CrudRepository), my database contains a new Order object with the correct fields, but nothing is ever created in ORDER_ITEMS.
I've poked around the documentation for both Hibernate and JPA OneToMany annotations, and I don't see where I'm going wrong here. I'll also add that I'm doing no manual schema creation, letting SpringBoot handle setting up everything in H2 for me.
This is what ultimately worked for me.
Order.java
package net.township.order;
import org.hibernate.annotations.Cascade;
import javax.persistence.*;
import java.util.Date;
import java.util.List;
import java.util.Set;
#Entity
#Table(name = "orders")
public class Order {
public Order() {
}
public Order(long merchantId, String firstDeliveryName, String lastDeliveryName, String deliveryAddress, String status, Date createDate, Date updateDate) {
this.merchantId = merchantId;
this.lastDeliveryName = lastDeliveryName;
this.firstDeliveryName = firstDeliveryName;
this.deliveryAddress = deliveryAddress;
this.status = status;
this.createDate = createDate;
this.updateDate = updateDate;
}
#Id
#GeneratedValue(strategy = GenerationType.AUTO)
#Column(name = "order_id", unique = true)
private long orderId;
#Column(name = "merchant_id")
private long merchantId;
#Column(name = "first_delivery_name")
private String firstDeliveryName;
#Column(name = "last_delivery_name")
private String lastDeliveryName;
#Column(name = "delivery_address")
private String deliveryAddress;
#Column
private String status;
#OneToMany( cascade = CascadeType.ALL)
#JoinColumn(name = "order_id", referencedColumnName = "order_id")
private List<OrderItem> orderItems;
#Column(name = "create_date")
private Date createDate;
#Column(name = "update_date")
private Date updateDate;
public void setOrderId(long orderId) {
this.orderId = orderId;
}
public long getMerchantId() {
return merchantId;
}
public void setMerchantId(long merchantId) {
this.merchantId = merchantId;
}
public List<OrderItem> getOrderItems() {
return orderItems;
}
public void setOrderItems(List<OrderItem> orderItems) {
this.orderItems = orderItems;
}
public String getLastDeliveryName() {
return lastDeliveryName;
}
public void setLastDeliveryName(String lastDeliveryName) {
this.lastDeliveryName = lastDeliveryName;
}
public Date getUpdateDate() {
return updateDate;
}
public void setUpdateDate(Date updateDate) {
this.updateDate = updateDate;
}
public Long getOrderId() {
return orderId;
}
public void setOrderId(Long orderId) {
this.orderId = orderId;
}
public String getFirstDeliveryName() {
return firstDeliveryName;
}
public void setFirstDeliveryName(String firstDeliveryName) {
this.firstDeliveryName = firstDeliveryName;
}
public String getDeliveryAddress() {
return deliveryAddress;
}
public void setDeliveryAddress(String deliveryAddress) {
this.deliveryAddress = deliveryAddress;
}
public String getStatus() {
return status;
}
public void setStatus(String status) {
this.status = status;
}
public Date getCreateDate() {
return createDate;
}
public void setCreateDate(Date createDate) {
this.createDate = createDate;
}
}
OrderItem.java
package net.township.order;
import com.fasterxml.jackson.annotation.JsonBackReference;
import javax.persistence.*;
#Entity
#Table(name = "order_items")
public class OrderItem {
#Id
#GeneratedValue
#Column(name = "id")
private Long id;
#Column(name = "order_id")
private Long orderId;
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
#Column
private String name;
#Column
private String description;
#Column
private Long quantity;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
public Long getQuantity() {
return quantity;
}
public void setQuantity(Long quantity) {
this.quantity = quantity;
}
}
Add CascadeType.ALL to your mapping.
I am having alot of issues trying to delete child records using JPA. Consider the mappings below. I am trying to delete all the state data in the jobs table. When it is removed it will cascade all deletes down the chain. Here is the chain:
Job -> State -> TaskState -> Step
When I try to remove state from job table it is set to NULL. However it is not cascaded down the chain. How would I go about achieving this?
Here is how I am deleting the data:
#Transactional
public void runJob(Long id) throws IOException, JAXBException {
Job job = jobRepository.findOne(id);
if(job.getState() != null){
State stateObj = stateRepository.findOne(job.getState().getId());
stateObj.setTasks(null);
stateRepository.delete(stateObj);
}
job.setState(null);
jobRepository.save(job);
}
Jobs:
#Entity
#Table(name = "jobs")
public class Job implements Serializable {
private static final long serialVersionUID = 1L;
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
#Column(name = "id")
private Long id;
#Column(name = "name")
private String name;
#Column(name = "description")
private String description;
#Temporal(TemporalType.TIMESTAMP)
private Date date;
#OneToOne
private Image image;
#OneToOne(cascade = CascadeType.ALL, orphanRemoval = true, fetch = FetchType.EAGER)
private State state;
#OneToMany
private List<Task> tasks;
#Column(name = "status")
#Enumerated(EnumType.STRING)
private JobStatusEnum status;
#ManyToMany
private List<Device> devices;
#OneToMany
private List<JobRun> runs;
#OneToMany
private List<Container> containers;
public Job() {
this.image = new Image();
this.status = JobStatusEnum.New;
this.devices = new ArrayList<>();
this.runs = new ArrayList<>();
this.containers = new ArrayList<>();
}
public Job(String name, String description, Date date, Image image, State state, List<Task> tasks, JobStatusEnum status, List<Device> devices, List<JobRun> runs, List<Container> containers) {
this.name = name;
this.description = description;
this.date = date;
this.image = image;
this.state = state;
this.tasks = tasks;
this.status = status;
this.devices = devices;
this.runs = runs;
this.containers = containers;
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
public Date getDate() {
return date;
}
public void setDate(Date date) {
this.date = date;
}
public Image getImage() {
return image;
}
public void setImage(Image image) {
this.image = image;
}
public State getState() {
return state;
}
public void setState(State state) {
this.state = state;
}
public List<Task> getTasks() {
return tasks;
}
public void setTasks(List<Task> tasks) {
this.tasks = tasks;
}
public JobStatusEnum getStatus() {
return status;
}
public void setStatus(JobStatusEnum status) {
this.status = status;
}
public List<Device> getDevices() {
return devices;
}
public void setDevices(List<Device> devices) {
this.devices = devices;
}
public List<JobRun> getRuns() {
return runs;
}
public void setRuns(List<JobRun> runs) {
this.runs = runs;
}
public List<Container> getContainers() {
return containers;
}
public void setContainers(List<Container> containers) {
this.containers = containers;
}
}
State:
#Entity
#Table(name = "state")
public class State implements Serializable {
#Id
#Column(name = "id")
#GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
#Column(name="name")
private String name;
#OneToMany(fetch = FetchType.EAGER, cascade = CascadeType.ALL)
private List<TaskState> tasks;
public State() {
tasks = new ArrayList<>();
}
public State(Long id, String name, List<TaskState> tasks) {
this.id = id;
this.name = name;
this.tasks = tasks;
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public List<TaskState> getTasks() {
return tasks;
}
public void setTasks(List<TaskState> tasks) {
this.tasks = tasks;
}
}
TaskState:
#Entity
#Table(name = "task_state")
public class TaskState implements Serializable {
#Id
#Column(name = "id")
#GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
#Column(name = "parent")
private Long parent;
#Column(name = "referenceid")
private Long referenceId;
#Column(name = "name")
private String name;
#Column(name = "status")
private TaskStatusEnum status;
#OneToMany(fetch = FetchType.EAGER, cascade = CascadeType.ALL)
private List<Step> steps;
#Column(name = "maxAttempts")
private Integer maxAttempts;
#ManyToOne
#JsonIgnore
private State state;
public TaskState() {
status = TaskStatusEnum.New;
steps = new ArrayList<>();
maxAttempts = 5;
}
public TaskState(Long id, Long parent, Long referenceId, String name, TaskStatusEnum status, List<Step> steps, Integer maxAttempts) {
this();
this.id = id;
this.parent = parent;
this.referenceId = referenceId;
this.name = name;
this.status = status;
this.steps = steps;
this.maxAttempts = maxAttempts;
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public Long getParent() {
return parent;
}
public void setParent(Long parent) {
this.parent = parent;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public TaskStatusEnum getStatus() {
return status;
}
public void setStatus(TaskStatusEnum status) {
this.status = status;
}
public List<Step> getSteps() {
return steps;
}
public void setSteps(List<Step> steps) {
this.steps = steps;
}
public Long getReferenceId() {
return referenceId;
}
public void setReferenceId(Long referenceId) {
this.referenceId = referenceId;
}
public Integer getMaxAttempts() {
return maxAttempts;
}
public void setMaxAttempts(Integer maxAttempts) {
this.maxAttempts = maxAttempts;
}
public State getState() {
return state;
}
public void setState(State state) {
this.state = state;
}
}
Step:
#Entity
#Table(name = "step")
public class Step implements Serializable {
#Id
#Column(name = "id")
#GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
#Column(name = "name")
private String name;
#Column(name = "groupname")
private String group;
#Column(name = "route")
private String route;
#Column(name = "celerytask")
private String celeryTask;
#Column(name = "postbackqueuename")
private String postBackQueueName;
#Column(name = "postbackerrorqueuename")
private String postBackErrorQueueName;
#Enumerated(EnumType.STRING)
#Column(name = "status")
private TaskStatusEnum status;
#ElementCollection
private List<String> arguements;
#Column(name="runningTaskId")
private Long runningTaskId;
#Column(name="result")
private String result;
#Column(name="attempt")
private Integer attempt;
#JsonIgnore
#ManyToOne
private TaskState task;
public Step() {
arguements = new ArrayList<>();
status = TaskStatusEnum.New;
attempt = 0;
}
public Step(String name, String group, String route, String celeryTask, String postBackQueueName, String postBackErrorQueueName, TaskStatusEnum status, List<String> arguements, Long runningTaskId) {
this();
this.name = name;
this.group = group;
this.route = route;
this.celeryTask = celeryTask;
this.postBackQueueName = postBackQueueName;
this.postBackErrorQueueName = postBackErrorQueueName;
this.status = status;
this.arguements = arguements;
this.runningTaskId = runningTaskId;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getGroup() {
return group;
}
public void setGroup(String group) {
this.group = group;
}
public String getRoute() {
return route;
}
public void setRoute(String route) {
this.route = route;
}
public String getCeleryTask() {
return celeryTask;
}
public void setCeleryTask(String celeryTask) {
this.celeryTask = celeryTask;
}
public String getPostBackQueueName() {
return postBackQueueName;
}
public void setPostBackQueueName(String postBackQueueName) {
this.postBackQueueName = postBackQueueName;
}
public String getPostBackErrorQueueName() {
return postBackErrorQueueName;
}
public void setPostBackErrorQueueName(String postBackErrorQueueName) {
this.postBackErrorQueueName = postBackErrorQueueName;
}
public List<String> getArguements() {
return arguements;
}
public void setArguements(List<String> arguements) {
this.arguements = arguements;
}
public TaskStatusEnum getStatus() {
return status;
}
public void setStatus(TaskStatusEnum status) {
this.status = status;
}
public String getResult() {
return result;
}
public void setResult(String result) {
this.result = result;
}
public Integer getAttempt() {
return attempt;
}
public void setAttempt(Integer attempt) {
this.attempt = attempt;
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public Long getRunningTaskId() {
return runningTaskId;
}
public void setRunningTaskId(Long runningTaskId) {
this.runningTaskId = runningTaskId;
}
public TaskState getTask() {
return task;
}
public void setTask(TaskState task) {
this.task = task;
}
}
It's not cascading because of stateObj.setTasks(null);.
You're breaking the link between the State and its Tasks so when you're deleting the State, the delete doesn't cascade on anything.
This is it my database project:
I have a problem with the correct combination of tables, as it is in the picture.
This is my files:
Category.java
#Entity
public class Category {
#Id
#GeneratedValue(strategy=GenerationType.AUTO)
private long id;
private String categoryName;
protected Category() {}
public Category(String categoryName) {
this.categoryName = categoryName;
}
public String getCategoryName() {
return categoryName;
}
public long getId() {
return id;
}
public void setId(long id) {
this.id = id;
}
public void setCategoryName(String categoryName) {
this.categoryName = categoryName;
}
#Override
public String toString() {
return String.format(
"Customer[id=%d, firstName='%s']",
id, categoryName);
}
}
Items.java
#Entity
#Table(name = "Items")
public class Items {
#Id
#GeneratedValue(strategy=GenerationType.AUTO)
private int ItemId;
private String ItemName;
private String price;
private Set<Locals> locals = new HashSet<Locals>(0);
public Items(){
}
public Items(String price, String itemName) {
this.price = price;
this.ItemName = itemName;
}
public void setItemId(int itemId) {
ItemId = itemId;
}
public void setLocals(Set<Locals> locals) {
this.locals = locals;
}
public void setPrice(String price) {
this.price = price;
}
public void setItemName(String itemName) {
ItemName = itemName;
}
#Id
#GeneratedValue(strategy = IDENTITY)
#Column(name = "ItemId", unique = true, nullable = false)
public int getItemId() {
return ItemId;
}
#ManyToMany(fetch = FetchType.LAZY, mappedBy = "itemsTo")
public Set<Locals> getLocals() {
return locals;
}
#Column(name = "price", nullable = false, length = 10)
public String getPrice() {
return price;
}
#Column(name = "ItemName", nullable = false, length = 10)
public String getItemName() {
return ItemName;
}
}
Locals.java
#Entity
#Table(name = "Locals")
public class Locals {
#Id
#GeneratedValue(strategy=GenerationType.AUTO)
private int LocalId;
private String localName;
private String address;
private String phoneNumber;
private String coorX;
private String coorY;
private Set<Items> itemsTo = new HashSet<Items>(0);
public Locals(){
}
public Locals(String localName,String address,String phoneNumber, String coorY, String coorX) {
this.coorY = coorY;
this.coorX = coorX;
this.phoneNumber = phoneNumber;
this.address = address;
this.localName = localName;
}
public Locals(String localName,String address,String phoneNumber, String coorY, String coorX, Set<Items> itemsTo) {
this.coorY = coorY;
this.coorX = coorX;
this.phoneNumber = phoneNumber;
this.address = address;
this.localName = localName;
this.itemsTo = itemsTo;
}
public void setLocalId(int localId) {
LocalId = localId;
}
public void setLocalName(String localName) {
this.localName = localName;
}
public void setAddress(String address) {
this.address = address;
}
public void setCoorX(String coorX) {
this.coorX = coorX;
}
public void setCoorY(String coorY) {
this.coorY = coorY;
}
public void setItemsTo(Set<Items> itemsTo) {
this.itemsTo = itemsTo;
}
public void setPhoneNumber(String phoneNumber) {
this.phoneNumber = phoneNumber;
}
#Id
#GeneratedValue(strategy = IDENTITY)
#Column(name = "LocalId", unique = true, nullable = false)
public int getLocalId() {
return LocalId;
}
#Column(name = "localName", unique = false, nullable = false, length = 10)
public String getLocalName() {
return localName;
}
#Column(name = "address", unique = false, nullable = false, length = 10)
public String getAddress() {
return address;
}
#Column(name = "phoneNumber", unique = false, nullable = false, length = 10)
public String getPhoneNumber() {
return phoneNumber;
}
#Column(name = "coorX", unique = false, nullable = false, length = 10)
public String getCoorX() {
return coorX;
}
#Column(name = "coorY", unique = false, nullable = false, length = 10)
public String getCoorY() {
return coorY;
}
#ManyToMany(fetch = FetchType.LAZY, cascade = CascadeType.ALL)
#JoinTable(name = "ItemsFinall", joinColumns = {
#JoinColumn(name = "LocalId", nullable = false, updatable = false) },
inverseJoinColumns = { #JoinColumn(name = "ItemId",
nullable = false, updatable = false) })
public Set<Items> getItemsTo() {
return itemsTo;
}
}
and ItemsFinall.java
#Entity
#Table(name = "ItemsFinall")
public class ItemsFinall {
#Id
#GeneratedValue(strategy=GenerationType.AUTO)
private int id;
private int ItemId;
private int CategoryId;
private int LocalId;
public ItemsFinall(int id, int localId, int categoryId, int itemId) {
this.LocalId = localId;
this.CategoryId = categoryId;
this.ItemId = itemId;
this.id=id;
}
public void setId(int id) {
this.id = id;
}
public void setLocalId(int localId) {
LocalId = localId;
}
public void setCategoryId(int categoryId) {
CategoryId = categoryId;
}
public void setItemId(int itemId) {
ItemId = itemId;
}
public int getLocalId() {
return LocalId;
}
public int getCategoryId() {
return CategoryId;
}
public int getItemId() {
return ItemId;
}
public int getId() {
return id;
}
}
I get the following error: Caused by: org.springframework.data.mapping.PropertyReferenceException: No property categoryName found for type ItemsFinall!
I do not know what to do to properly connect the table.
ItemsServiceImpl.java
package dnfserver.model;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* Created by Łukasz on 2015-03-14.
*/
#Component
public class CategoryServiceImpl implements CategoryService {
#Autowired
private CategoryRepository categoryRepository;
private Map<Integer,String> categoryMap = new HashMap<Integer, String>();
#Override
public Category create(Category category) {
Category createdCategory = category;
return categoryRepository.save(createdCategory);
}
#Override
public Category delete(int id) {
return null;
}
#Autowired
public Map<Integer,String> findAll(){
int i=0;
for (Category cat : categoryRepository.findAll()) {
categoryMap.put(i,cat.toString());
i++;
}
return categoryMap;
}
#Override
public Category update(Category shop) {
return null;
}
#Override
public Category findById(int id) {
return categoryRepository.findOne(id);
}
}
In hibernate/JPA you model the relationship between Entities, but not use plain Ids!
For example
#Entity
#Table(name = "ItemsFinall")
public class ItemsFinall {
#Id
#GeneratedValue(strategy=GenerationType.AUTO)
private int id;
//instead of: private int ItemId;
#OneToMany
private Item item;
//instead of: private int CategoryId;
#OneToMany
private Category category;
//instead of: private int LocalId;
#OneToMany
private Local local;
...
(You also need to fix the Set<Locals> locals in item)
I have a rest server and client which uses this API. I have a list of hotels and it had passed well until I added bidirectional dependencies to other entities.After that I start receive an endless array of entities which just repeat the same row in database.
It is my first project with hibernate so may be I made trivial mistakes of novice.
Hotel:
#Entity
#Table(name = "hotels", schema = "", catalog = "mydb")
public class HotelsEntity implements HospitalityEntity{
private int idHotel;
private String name;
private String region;
private String description;
// private byte[] photo;
private HotelPropertyEntity property;
private List<RoomEntity> rooms;
#OneToOne(mappedBy = "hotel")
public HotelPropertyEntity getProperty() {
return property;
}
public void setProperty(HotelPropertyEntity property) {
this.property = property;
}
#OneToMany(mappedBy = "hotel")
public List<RoomEntity> getRooms() {
return rooms;
}
public void setRooms(List<RoomEntity> rooms) {
this.rooms = rooms;
}
#Id
#Column(name = "id_hotel", unique = true)
#GeneratedValue(strategy=GenerationType.AUTO)
public int getIdHotel() {
return idHotel;
}
public void setIdHotel(int idHotel) {
this.idHotel = idHotel;
}
#Basic
#Column(name = "name")
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
#Basic
#Column(name = "region")
public String getRegion() {
return region;
}
public void setRegion(String region) {
this.region = region;
}
#Basic
#Column(name = "description")
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
HotelProperty
#Entity
#Table(name = "hotel_property", schema = "", catalog = "mydb")
public class HotelPropertyEntity {
private int idHotelProperty;
private byte hasPool;
private byte hasTennisCourt;
private byte hasWaterslides;
private HotelsEntity hotel;
#Id
#Column(name = "id_hotel_property", unique = true)
#GeneratedValue(strategy=GenerationType.AUTO)
public int getIdHotelProperty() {
return idHotelProperty;
}
public void setIdHotelProperty(int idHotelProperty) {
this.idHotelProperty = idHotelProperty;
}
#Basic
#Column(name = "has_pool", columnDefinition = "BIT", length = 1)
public byte getHasPool() {
return hasPool;
}
public void setHasPool(byte hasPool) {
this.hasPool = hasPool;
}
#Basic
#Column(name = "has_tennis_court", columnDefinition = "BIT", length = 1)
public byte getHasTennisCourt() {
return hasTennisCourt;
}
public void setHasTennisCourt(byte hasTennisCourt) {
this.hasTennisCourt = hasTennisCourt;
}
#Basic
#Column(name = "has_waterslides", columnDefinition = "BIT", length = 1)
public byte getHasWaterslides() {
return hasWaterslides;
}
public void setHasWaterslides(byte hasWaterslides) {
this.hasWaterslides = hasWaterslides;
}
#OneToOne(cascade = CascadeType.ALL)
#JoinColumn(name = "id_hotel_property")
public HotelsEntity getHotel() {
return hotel;
}
public void setHotel(HotelsEntity hotel) {
this.hotel = hotel;
}
Room:
#Entity
#Table(name = "room", schema = "", catalog = "mydb")
public class RoomEntity {
private int idRoom;
private String roomType;
private int peopleCapacity;
private Boolean booked;
private Boolean locked;
private HotelsEntity hotel;
private InventoriesEntity inventory;
private RoomPropertyEntity roomProperty;
#OneToOne(mappedBy = "room")
public RoomPropertyEntity getRoom() {
return roomProperty;
}
public void setRoom(RoomPropertyEntity roomProperty) {
this.roomProperty = roomProperty;
}
#OneToOne
#JoinColumn(name = "id_room")
public InventoriesEntity getInventory() {
return inventory;
}
public void setInventory(InventoriesEntity inventory) {
this.inventory = inventory;
}
#ManyToOne(fetch = FetchType.LAZY)
#JoinColumn(name = "id_hotel")
public HotelsEntity getHotel() {
return hotel;
}
public void setHotel(HotelsEntity hotel) {
this.hotel = hotel;
}
#Id
#Column(name = "id_room")
public int getIdRoom() {
return idRoom;
}
public void setIdRoom(int idRoom) {
this.idRoom = idRoom;
}
#Basic
#Column(name = "room_type")
public String getRoomType() {
return roomType;
}
public void setRoomType(String roomType) {
this.roomType = roomType;
}
#Basic
#Column(name = "people_capacity")
public int getPeopleCapacity() {
return peopleCapacity;
}
public void setPeopleCapacity(int peopleCapacity) {
this.peopleCapacity = peopleCapacity;
}
#Basic
#Column(name = "booked", columnDefinition = "BIT", length = 1)
public Boolean getBooked() {
return booked;
}
public void setBooked(Boolean booked) {
this.booked = booked;
}
#Basic
#Column(name = "locked", columnDefinition = "BIT", length = 1)
public Boolean getLocked() {
return locked;
}
public void setLocked(Boolean locked) {
this.locked = locked;
}
Could you please advise what is a way or ways to tell hibernate to stop this cycle?
p.s
This code contains another one issue. I f I remove one to one dependency and remain only one to many I receive failed to lazily initialize a collection of role: com.example.model.HotelsEntity.rooms, could not initialize proxy - no Session (through reference chain: java.util.ArrayList[0]->com.example.model.HotelsEntity["rooms"])
You need to mark entity as not serializable for JSON. Please use #JsonIgnore or #JsonIgnoreProperties("field") on one of the sides of the relations (the annotation is class-level).