Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.
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The following annotations can mark methods as JPA callback methods: The Lifecycle Events section of the ObjectDB Manual explains how to use all these annotations on callback methods and with listener classes.
All about JDO Internal Callbacks in Java/JPA database - explanations, examples, references, links and related information.
Callback methods are user defined methods that are attached to entity lifecycle events and are invoked automatically by JPA when these events occur. Internal Callback Methods Internal callback ... defines all the supported callback methods with empty implementations: @Entity public static class
Enum Constantjavax.persistence.ValidationMode CALLBACK The persistence provider must perform the lifecycle event validation. It is an error if there is no Bean Validation provider present in the environment. Since: JPA 2.0
Describes advanced JPA topics - detached entity objects, lock management and entity lifecycle events.
. Lifecycle Events JPA callback methods and listener classes. JDO callback methods and listener
JPA defines dozens of annotations that can be divided into the following groups: Annotations for JPA aware classes: Annotations for fields in JPA persistable classes: Annotations for additional JPA configuration: Annotations for JPA lifecycle event callbacks: Java EE container annotations: Many
, StoreCallback A PersistenceCapable class that provides callback methods for life cycle events ... over callbacks, for example to allow a class to implement the load callback without implementing any of the other callbacks. For backward compatibility with JDO 1.0, the InstanceCallbacks interface is preserved
javax.persistence Annotation PostRemove Target: Callback methods Is used to specify callback ... class, a mapped superclass, or a callback listener class. Since: JPA 1.0 Learn how to define and use JPA callback methods in Chapter 3 of the ObjectDB/JPA manual. This annotation is a marker annotation (with no elements).
javax.persistence Annotation PostLoad Target: Callback methods Is used to specify callback methods ... , a mapped superclass, or a callback listener class. Since: JPA 1.0 Learn how to define and use JPA callback methods in Chapter 3 of the ObjectDB/JPA manual. This annotation is a marker annotation (with no elements).