Java Enterprise in a Nutshell, Second Edition

Name

EntityBean

Synopsis

This interface is the base interface for all entity EJB objects. The methods defined on the EntityBean interface are used by EJB containers to notify the entity bean about entity-specific events, such as the need to (re)load its state from persistent storage.

The ejbActivate() and ejbPassivate() methods are called on the bean by the container when the bean is associated and disassociated with a specific entity, respectively. The ejbLoad() and ejbStore() methods are called when the entity bean needs to read and write its persistent state, respectively. The ejbRemove() method is called when the entity associated with this bean should be removed from persistent storage. When the container sets the entity bean’s context, it calls the setEntityContext() method, and it removes the association with a given context by calling the unsetEntityContext() method.

                  
public interface EntityBean extends EnterpriseBean {
// Public Instance Methods
   public abstract void ejbActivate(
        ) throws EJBException, java.rmi.RemoteException;  
   public abstract void ejbLoad(
        ) throws EJBException, java.rmi.RemoteException;  
   public abstract void ejbPassivate(
        ) throws EJBException, java.rmi.RemoteException;  
   public abstract void ejbRemove(
        ) throws RemoveExceptionEJBException, java.rmi.RemoteException;  
   public abstract void ejbStore( ) throws EJBException, java.rmi.RemoteException; public abstract ...