relationship « Insert « JPA Q&A





1. Inserting a Hibernate entity with a many-to-one relationship    stackoverflow.com

I'm fairly new to Hibernate and have a question on how to handle an Insert when the entity has a FK; specifically how to create the entity to be inserted. My ...

2. Insert into join table in many-to-many relationship    stackoverflow.com

Problem #1: I have three tables; User, UserRole, and UserRoleRelationships (join table). The UserRole table contain all the user roles which I want to associate with the user. When I insert a ...

3. Hibernate one-to-many relationship insert    coderanch.com

I am having a 1-to-many relationship btw Parent and child class....In the parent class i am something like private Set children = new HashSet(); public void setChildren(Set children)... public Set getChildren() The parent hbm mapping file has: While inserting records in the db, my code is: Parent p = new Parent(); Set child1 = ...

4. Problem at insert with relationship JPA 2.0    coderanch.com

Here is my Employee entity public class Employee implements Serializable { private static final long serialVersionUID = 1L; @Id @GeneratedValue(strategy = GenerationType.IDENTITY) private Long id; private String name; @Lob private ArrayList rights; @ManyToOne private EmployeeGroups group; @OneToOne(mappedBy="employee",cascade=CascadeType.PERSIST) private Account account; public Long getId() { return id; } public void setId(Long id) { this.id = id; } @Override public int hashCode() { ...

5. insert into many-to-many relationship while staying lazy?    forum.hibernate.org

Hi, Example of a many-to-many relationship: A student can be in n departments A department can have m students. The simplified mapping code looks like this: Code: @Entity @Table(name="DEPARTMENT") public class Department { @ManyToMany(mappedBy="departments", fetch=FetchType.LAZY, cascade= CascadeType.MERGE) @JoinTable(name="DEPARTMENT_STUDENT", ...

6. Weird insert error with foreign key relationship    forum.hibernate.org

Basically, here is the problem. I have a business process which I wrap in a transaction. I am using the hibernate transaction management for this. There are 4 separate hibernate types that are inserted. 1. Header 2. Batch 3. AchTransaction 4. AchAddendem The header is the only one without a fk relationship. The batch has a relationship to the header, the ...

7. Many To Many relationship : Data Not getting Inserted...    forum.hibernate.org

I am a quite new to hibernate. Here i am trying to implement a many-to-many relationship with following setting in mapping.xml. When i am retriving data i dont have any problem. But when i am trying to insert data it is not getting inserted ..! Even I can't see any exception being thrown by hibernate on console. Can naybody help me ...

9. Insert using hibernate having one to many relationship    forum.hibernate.org

I am able to insert in both parent and child table from application but when i am deleting from application, the child table is not deleted, it is throwing some exception. If i will delete the child table data from DB2 and then delete this data from application then it is working fine. It is throwing the following exception when deleting ...