Enetrprice Java Bean - bean life cycles

Stateless session bean - life cycle

uncreted state -> active state (setSession() from container and ejbCreate() )

active state -> destroy state (ejbRemove())

Statefull session bean - life cycle

Uncreated state -> Active state (setSession() from container and ejbCreate() )

Active state -> Passive state (ejbPassivate() )

Passive state -> Active state (ejbActivate() , bean can only be invoked when active )

Active state -> Destroy state (ejbRemove() )

Entity bean - life cycle

Uncreated -> Pool state (setEntityContext(), Now entity bean is just created and in a pool. No id is assigned)

Pool state -> Active (create(), ejbActivate(), ejbCreate(). Now it has an id)

Active state -> Pooled state (ejbPassivate(), remove(), ejbRemove() )

Active state -> destroy state (unsetEntityContext())

Message driven bean - life cycle

Uncreated -> Active state (setEntityContext(), ejbCreate())

Active state -> Event listening state (onMessage(), bean can react to incoming events to now )

Active state -> destroy state (ejbRemove())