About PostUpdate

manual

JPA Lifecycle Events

Explains how to use JPA lifecycle events (client side triggers) with callback methods and listener classes.... onPreUpdate ( ) { } @PostUpdate javax.persistence.PostUpdate JPA annotation Is used to specify callback methods for ...

 
api-jpa

JPA Annotations for Callback Methods

Reference (JavaDoc) of JPA 2 event callback and listener annotations, including @PrePersist(2), @PreRemove, @PreUpdate, @PostLoad, @PostPersist, @PostRemove and @PostUpdate.... javax.persistence.PostRemove javax.persistence.PostUpdate The Lifecycle Events section of the ObjectDB ...

 
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PostUpdate collection null

Hello, I have an entity MyEntity with a collection attribute myCollection. I have an EntityListener on MyEntity with a @PostUpdate method. When I try to access myCollection from the PostUpdate method, this collection is null. If I try to access the collection from the PreUpdate method, the collection is populated. The collection is eagerly fetched. public class MyEntity {     @OneToMany(fetch=FetchType.EAGER)     private ArrayList<OtherEntity> myCollection = new ArrayList<OtherEntity>(); ... myCollection. I have an EntityListener on MyEntity with a @PostUpdate method. When I try to access myCollection from the PostUpdate method, this collection is null. If I try to access the collection ...

 
api-jpa

javax.persistence.PostUpdate

Is used to specify callback methods for the corresponding lifecycle event.(Annotation of JPA)

 
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@PrePersist Implementation

Hi Please help me.I have requirement like In my project having arround 100 pojos .I have used @EntityListener and @prePersist annotaions to invoke my action class .. But problem is how can i get oldvalue and new value of current form of pojo in side my @entity Listener Action class. code snipt ===== Action class ======= ... event, and to get the entity after the update use  @PostUpdate. In order to be able to get told value in the ...

 
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Entity listener - event instead of object

Hi, Currently I'm playing with entity listener to implement auditing with difference between values in updated entity. There is a problem however with accessing "old" version of object stored in database. I can't find the nice way to use EntityManager in EntityListener. Because of that, I can't store separate entity for given event. Right now I'm using BaseEntity which contains ... detachCopy ). Then you may be able to compare on @PostUpdate the entity object after the update with the cloned detached entity ...