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JPA Lifecycle Events

MyEntityWithCallbacks { @PrePersist void onPrePersist() {} @PostPersist void onPostPersist() {} @ PostLoad ... ). @PostPersist - after storing a new entity in the database (during commit or flush ). @ PostLoad ... onPrePersist(Object o) {} @PostPersist void onPostPersist(Object o) {} @ PostLoad void onPostLoad(Object o

javax.persistence.PostLoad

JPA Annotation PostLoad Target: METHOD Implemented Interfaces: Annotation Specifies a callback method for the corresponding lifecycle event. This annotation may be applied to methods of an entity ... article explains how to use PostLoad . This annotation is a marker annotation (with no attributes).

Handling deleted references

and no version. To simplify the use case I added a @ PostLoad method to the User class, which simply checks ... profile instance: @ PostLoad private void checkProfileAvailable() { if (profile == null) { // or ... so much easier since one can simply add @ PostLoad method and recheck all instances if they are broken or not

Adding EntityListener Throws Unexpected Internal Exception

.. } and listener like below: public class MyListener {     @ PostLoad     public void onPostLoad(Object o) {         Logger.info(" PostLoad

Best practice: Database update/migration of embedded databases in products

a PostLoad callback (if not null ) to name . Only name will be used by the application (except in ... and city in a PostLoad callback (if not null ). If conversion is restricted to V1.0 - V1.1 and V1.1

Unable to store AtomicInteger

is to store an int then from the entity call an extra setup function in @ PostLoad ... , then there shouldn't be a problem, right?) Flying Banana Jiacong Xu You may either use serialization or the PostLoad solution in this case. support Support

FetchGroup.setPostLoad(postLoad) - JDO Method

JDO Method in javax.jdo.FetchGroup FetchGroup setPostLoad (   boolean  postLoad ) Set the post-load property of this FetchGroup. Return: the FetchGroup Throws: JDOUserException - if the FetchGroup is unmodifiable Since: JDO 2.2

LoadLifecycleListener.postLoad(event) - JDO Method

JDO Method in javax.jdo.listener.LoadLifecycleListener void postLoad (    InstanceLifecycleEvent  event ) Invoked whenever a persistent instance is loaded from the data store. It is called after the method LoadCallback.jdoPostLoad is invoked on the persistent instance. Parameters: event - the load event. Since: JDO 2.0

javax.jdo.annotations.FetchGroup.postLoad

JDO Annotation Attribute in javax.jdo.annotations.FetchGroup String postLoad default "" Whether we should load this group as part of the post load process. Since: JDO 2.1

Schema evolution & renamed/moved enum

convertible type, you can add a new field (with a different field name) with the new type and on PostLoad

@Convert is not supported?

Vachagan You may try using a JPA lifecycle event ( PostLoad ). The purpose of converters is totally

Automatic schema evolution causes ArrayOutOfBoundsException

, and write code to convert from List to List , possibly in a PostLoad callback method . The second

JPA 2.1 and AttributeConverter

 (such as PostLoad , PrePersist , PreUpdate ). support Support

Managing software release cycles.

can be defined by configuration. In some cases you may have to write code. You can use the PostLoad event

Compress ODB file with XML content

uncompressing compressedValue on PostLoad and setting compressedValue by compressing value

javax.jdo.FetchGroup

; postLoad ) Set the post-load property of this FetchGroup. Return: the FetchGroup Throws

javax.jdo.listener.LoadLifecycleListener

JDO Interface LoadLifecycleListener Super Interfaces: InstanceLifecycleListener This interface is implemented by listeners to be notified of load events. Since: JDO 2.0 Public Methods void postLoad ( InstanceLifecycleEvent  event) Invoked whenever a persistent instance is loaded from the data

javax.jdo.annotations.FetchGroup

default "" Name of the fetch group. Since: JDO 2.1 String postLoad default "" Whether we should load