jrun.ejb
Class EntityInstance

jrun.ejb.Instance
  |
  +--jrun.ejb.EntityInstance

All Implemented Interfaces:

java.io.Serializable

public class EntityInstance

extends Instance

An EntityInstance extends Instance by configuring for the allowed operations of an entity bean and for providing a javax.tranasction.Synchronization object for managing store operations according to the container's commit option.

Author:

Paul Reilly, PS Neville

See Also:

Serialized Form

Fields inherited from class jrun.ejb.Instance

enterpriseBean, instanceContext

Constructor Summary

EntityInstance(java.lang.Class beanClass)

Method Summary

void	clear() This method extends super.clear() by also clearing out the image of the persistent fields.
EJBInvocation	getEJBInvocation()
boolean	hasImageChanged() This method compares the image of the persistent fields taken at the beginning on the transaction with the current image.
boolean	isCached()
boolean	isDirty() This method will allow customers to query the current dirty status.
void	setCached(boolean isCached)
void	setDirty(boolean isDirty) This method will allow customers to set the current dirty status in those cases where the shallow image checking isn't enough.
void	setEJBInvocation(EJBInvocation ejbInvocation)
void	setFoundLocally(boolean foundLocally)
void	updateImage()
boolean	wasFoundLocally()

Methods inherited from class jrun.ejb.Instance

afterBegin, afterCompletion, beforeCompletion, getCurrentMethod, getEnterpriseBean, getID, getInstanceContext, getOperation, getOperations, getPrincipal, getTransactionType, isHomeMethod, isInUse, isLocked, lock, setCurrentMethod, setEnterpriseBean, setHomeMethod, setID, setInstanceContext, setInUse, setOperation, setOperations, setPrincipal, unlock, unsetOperation

Constructor Detail

EntityInstance

public EntityInstance(java.lang.Class beanClass)

Method Detail

clear

public void clear()

This method extends super.clear() by also clearing out the image of the persistent fields.

Overrides:

clear in class Instance

getEJBInvocation

public EJBInvocation getEJBInvocation()

hasImageChanged

public boolean hasImageChanged()

This method compares the image of the persistent fields taken at the beginning on the transaction with the current image. If the image has changed, true is returned.

isCached

public boolean isCached()

isDirty

public boolean isDirty()

This method will allow customers to query the current dirty status.

setCached

public void setCached(boolean isCached)

setDirty

public void setDirty(boolean isDirty)

This method will allow customers to set the current dirty status in those cases where the shallow image checking isn't enough.

setEJBInvocation

public void setEJBInvocation(EJBInvocation ejbInvocation)

setFoundLocally

public void setFoundLocally(boolean foundLocally)

updateImage

public void updateImage()

wasFoundLocally

public boolean wasFoundLocally()