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kuni katsuya

Java Persistence/Advanced Topics - Wikibooks, open books for an open world - 0 views

en.wikibooks.org/...Advanced_Topics

JPA events LifeCycle

shared by kuni katsuya on 08 Feb 13 - No Cached
  • Events
  • hook into a system that allows the execution of some code when the event occurs
  • JPA defines several events for the persistent
  • ...37 more annotations...
  • life-cycle
  • of Entity objects
  • JPA defines the following events:
  • PostLoad
  • PrePersist
  • PostPersist
  • PreUpdate
  • PostUpdate
  • PreRemove
  • PostRemove
  • after an Entity is loaded into the
  • persistence context
  • before the persist operation is invoked on an Entity
  • after a refresh operation.
  • before the remove operation is invoked on an Entity
  • cascade of a remove operation
  • during a flush or commit for orphanRemoval in JPA 2.0
  • after an instance is deleted from the database
  • occurs during a flush or commit operation
  • after the database DELETE has occurred
  • before the transaction is committed
  • after an instance is updated in the database
  • occurs during a flush or commit operation
  • after the database UPDATE has occurred
  • before the transaction is committed
  • before an instance is updated in the database
  • occurs during a flush or commit operation
  • after the database UPDATE has occurred
  • before the transaction is committed
  • after a new instance is persisted to the database
  • occurs during a flush or commit operation
  • after the database INSERT has occurred
  • before the transaction is committed
  • Id of the object should be assigned
  • merge for new instances
  • cascade of a persist operation
  • Id of the object may not have been assigned, and code be assigned by the event
kuni katsuya

Chapter 2. Mapping Entities - 0 views

docs.jboss.org/...entity.html

JPA @Id @GeneratedValue GenerationType

shared by kuni katsuya on 08 Feb 13 - No Cached
  • 2.2.3. Mapping identifier properties
  • @Id annotation lets you define which property is the identifier of your entity
  • can be set by the application itself
  • ...1 more annotation...
  • or be generated by Hibernate (preferred)
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