About CascadeType

forum_thread

EntityManager.refresh takes a long time

EntityManager.refresh takes a long time for entity object Person in this code: ... mappedBy = "person" , cascade = CascadeType . ALL ) private List<OpenIdAuth> ... mappedBy = "person" , cascade = CascadeType . ALL ) private List<PersonOperation> ...

 
forum_thread

persisting object with long[][] arrays of array

Hi, I have an object I am trying to persist (java) - It has several fields of type long[][]. It is taking very long to persist and sometimes never finish - it hangs on getTransaction().commit(); Here is the object: ... Serializable ; import javax. persistence . CascadeType ; import javax. persistence . Entity ; ... = FetchType . EAGER , cascade = CascadeType . ALL ) public long [ ] time ; ...

 
forum_thread

Persist error @ManyToMany how to define correct entities relationships

I have Product entities containing a list of Category enties. Each product can have multiple Category but all sue the same limited set of Category entities. There is not changes made to Category from Product. The category ID is taken from the webservice Object ID (unique too). ... @ ManyToMany ( cascade = CascadeType . PERSIST )   private ... util . List ; import javax. persistence . CascadeType ; import javax. persistence . Entity ; ... @ ManyToMany ( cascade = CascadeType . PERSIST ) private ...

 
api-jpa

javax.persistence.CascadeType

Defines the set of cascadable operations that are propagated to the associated entity.(Enum of JPA)

 
forum_thread

How to Remove records from many to many relationship tables in JPA

Hello All, I am getting the constraint violation exception whil deleting the entries I have Relation tables    TransportationEvent  and Conclusion  , relations like ... = FetchType . EAGER , cascade = CascadeType . PERSIST ) private List<Conclusion> ... = FetchType . LAZY , cascade = CascadeType . PERSIST ) private ... @ Cascade ( org. hibernate . annotations . CascadeType . DELETE_ORPHAN ) and i applied that as ...

 
api-jpa

JPA Annotations for Relationships

Reference (JavaDoc) of JPA 2 relationship annotations, including @ManyToMany, @ManyToOne, @OneToMany, @OneToOne, @OrderBy and @MapKey.... the following enum types: javax.persistence.CascadeType javax.persistence.FetchType Additional ...

 
forum_thread

Merge with Parent/Child entities not possible

Can you please tell me why the following unit test ends with "[ObjectDB 2.5.7_02] javax.persistence.RollbackException"? ... . Map ;   import javax. persistence . CascadeType ; import javax. persistence . Column ; ... = FetchType . LAZY , cascade = CascadeType . ALL , mappedBy = "parent" , orphanRemoval = ...

 
forum_thread

Is it possible to remove parent/child entities without refresh?

We have a big object tree in our project. If I use the entityManage.remove method a entityManager.refresh is necessary in order to have an updated object tree in memory. But entityManager.refresh is too slow for our project. Do you know a possibilty to remove parent/child entities without entityManager.refresh after the entityManager.remove operation? I have searched for a solution with the following unit test (See testRemoveVariant2()). But my approach works correctly. Do you have an idea? ... . Map ;   import javax. persistence . CascadeType ; import javax. persistence . Column ; ... = FetchType . LAZY , cascade = CascadeType . ALL , mappedBy = "parent" , orphanRemoval = ...

 
issue

After using the enhancer, Lazy loaded collections are no longer loading. They are set as null

Environment: Mac OS X JVM: Java 1.8 u 20 Steps to reproduce Use the following classes: /** Account Class **/ ... @ OneToMany ( cascade = { CascadeType . MERGE , CascadeType . PERSIST } , mappedBy = "account" , fetch ...

 
api-jpa

values()

Returns an array containing the constants of this enum type.(Static Method of javax.persistence.CascadeType)