biz.wedoit4u.ejb.entity
Class EntityBeanAdapter

java.lang.Object
  biz.wedoit4u.ejb.entity.EntityBeanAdapter

All Implemented Interfaces:

java.io.Serializable, javax.ejb.EnterpriseBean, javax.ejb.EntityBean

Direct Known Subclasses:

CategoryBean, ContentBean, CustomerBean, CustomerTypeBean, SitePropertyBean

public class EntityBeanAdapter
extends java.lang.Object
implements javax.ejb.EntityBean

A dummy implementation of the EntityBean interface. This class makes creating entity bean implementations easier, since no implementation is usually required for CMP beans.

Copyright 2003, Rakesh Vidyadharan

Version:

$Id: EntityBeanAdapter.java,v 1.2 2004/05/26 11:42:35 rakesh Exp $

Author:

Rakesh Vidyadharan on 10^th September 2003

See Also:

Serialized Form

Constructor Summary

EntityBeanAdapter()

Method Summary

void	ejbActivate() A container invokes this method when the instance is taken out of the pool of available instances to become associated with a specific EJB object.
void	ejbLoad() A container invokes this method to instruct the instance to synchronize its state by loading it state from the underlying database.
void	ejbPassivate() A container invokes this method on an instance before the instance becomes disassociated with a specific EJB object.
void	ejbRemove() A container invokes this method before it removes the EJB object that is currently associated with the instance.
void	ejbStore() A container invokes this method to instruct the instance to synchronize its state by storing it to the underlying database.
void	setEntityContext(javax.ejb.EntityContext ctx) Set the associated entity context.
void	unsetEntityContext() Unset the associated entity context.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

EntityBeanAdapter

public EntityBeanAdapter()

Method Detail

setEntityContext

public void setEntityContext(javax.ejb.EntityContext ctx)
                      throws javax.ejb.EJBException

Set the associated entity context. The container invokes this method on an instance after the instance has been created.

This method is called in an unspecified transaction context.

Specified by:

setEntityContext in interface javax.ejb.EntityBean

Parameters:

ctx - - An EntityContext interface for the instance. The instance should store the reference to the context in an instance variable.

Throws:

javax.ejb.EJBException - - Thrown by the method to indicate a failure caused by a system-level error.

unsetEntityContext

public void unsetEntityContext()
                        throws javax.ejb.EJBException

Unset the associated entity context. The container calls this method before removing the instance.

This is the last method that the container invokes on the instance. The Java garbage collector will eventually invoke the finalize() method on the instance.

This method is called in an unspecified transaction context.

Specified by:

unsetEntityContext in interface javax.ejb.EntityBean

Throws:

javax.ejb.EJBException - - Thrown by the method to indicate a failure caused by a system-level error.

ejbRemove

public void ejbRemove()
               throws javax.ejb.EJBException

A container invokes this method before it removes the EJB object that is currently associated with the instance. This method is invoked when a client invokes a remove operation on the enterprise Bean's home interface or the EJB object's remote interface. This method transitions the instance from the ready state to the pool of available instances.

This method is called in the transaction context of the remove operation.

Specified by:

ejbRemove in interface javax.ejb.EntityBean

Throws:

javax.ejb.EJBException - - Thrown by the method to indicate a failure caused by a system-level error.

ejbActivate

public void ejbActivate()
                 throws javax.ejb.EJBException

A container invokes this method when the instance is taken out of the pool of available instances to become associated with a specific EJB object. This method transitions the instance to the ready state.

This method executes in an unspecified transaction context.

Specified by:

ejbActivate in interface javax.ejb.EntityBean

Throws:

javax.ejb.EJBException - - Thrown by the method to indicate a failure caused by a system-level error.

ejbPassivate

public void ejbPassivate()
                  throws javax.ejb.EJBException

A container invokes this method on an instance before the instance becomes disassociated with a specific EJB object. After this method completes, the container will place the instance into the pool of available instances.

This method executes in an unspecified transaction context.

Specified by:

ejbPassivate in interface javax.ejb.EntityBean

Throws:

javax.ejb.EJBException - - Thrown by the method to indicate a failure caused by a system-level error.

ejbLoad

public void ejbLoad()
             throws javax.ejb.EJBException

A container invokes this method to instruct the instance to synchronize its state by loading it state from the underlying database.

This method always executes in the transaction context determined by the value of the transaction attribute in the deployment descriptor.

Specified by:

ejbLoad in interface javax.ejb.EntityBean

Throws:

javax.ejb.EJBException - - Thrown by the method to indicate a failure caused by a system-level error.

ejbStore

public void ejbStore()
              throws javax.ejb.EJBException

A container invokes this method to instruct the instance to synchronize its state by storing it to the underlying database.

This method always executes in the transaction context determined by the value of the transaction attribute in the deployment descriptor.

Specified by:

ejbStore in interface javax.ejb.EntityBean

Throws:

javax.ejb.EJBException - - Thrown by the method to indicate a failure caused by a system-level error.