oracle.dacf.control
Class DbAccessMonitor

java.lang.Object
  oracle.dacf.util.InfoBusMemberHelper
      oracle.dacf.control.DbAccessSupport
          oracle.dacf.control.DbAccessMonitor

All Implemented Interfaces:

java.util.EventListener, javax.infobus.InfoBusDataConsumer, javax.infobus.InfoBusEventListener, InfoBusManagerListener, javax.infobus.InfoBusMember, java.beans.PropertyChangeListener

public class DbAccessMonitor

extends DbAccessSupport

implements InfoBusManagerListener

This class tracks a DbAccess item. More than one Component (frame, panel, etc.) could depend on this object to track a DbAccess. The last Component which call's terminate will cause this object to check if a transaction is pending and alert user.

Version:

INTERNAL

Field Summary

Fields inherited from class oracle.dacf.util.InfoBusMemberHelper

m_infoBus, m_propListeners, m_sourceRef, m_syncLock, m_vetoListeners

Constructor Summary

protected

DbAccessMonitor() Constructor

Method Summary

void	addDbAccessClient(java.lang.Object o) addDbAccessClient - add a new object which is interested in tracking this DbAccess
void	addDbAccessClient(java.lang.Object o, IncompleteTransactionAlert alert) addDbAccessClient - add a new object which is interested in tracking this DbAccess
void	releaseResources(InfoBusManagerReleaseEvent e) A signalling method used to indicate the the control should free all resources and unregister any listeners that it has registered.
void	removeDbAccessClient(java.lang.Object o) removeDbAccessClient - remove object which is no longer interested in tracking this data item.
void	setIncompleteTransactionAlertUI(java.lang.Object o, IncompleteTransactionAlert alert) set the UI which should be used to alert
boolean	terminateTransaction(java.lang.Object o, boolean forceExit) terminateTransaction()

Methods inherited from class oracle.dacf.control.DbAccessSupport

dataItemAvailable, dataItemRevoked, dropInfoBus, getDataItem, getDataItemName, getInfoBusName, isFocusValidated, propertyChange, setDataItemName, setFocusValidated, setInfoBusName

Methods inherited from class oracle.dacf.util.InfoBusMemberHelper

addInfoBusPropertyListener, addInfoBusVetoableListener, clearRef, getInfoBus, joinInfoBus, joinInfoBus, leaveInfoBus, removeInfoBusPropertyListener, removeInfoBusVetoableListener, setInfoBus

Methods inherited from class java.lang.Object

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

Constructor Detail

DbAccessMonitor

protected DbAccessMonitor()

Constructor

Method Detail

releaseResources

public void releaseResources(InfoBusManagerReleaseEvent e)

Description copied from interface: InfoBusManagerListener

A signalling method used to indicate the the control should free all resources and unregister any listeners that it has registered.

Specified by:

releaseResources in interface InfoBusManagerListener

addDbAccessClient

public void addDbAccessClient(java.lang.Object o)

addDbAccessClient - add a new object which is interested in tracking this DbAccess

Parameters:

o - - object interested in our DbAccess item.

addDbAccessClient

public void addDbAccessClient(java.lang.Object o,
                              IncompleteTransactionAlert alert)

addDbAccessClient - add a new object which is interested in tracking this DbAccess

Parameters:

o - - object interested in our DbAccess item.

alert - - user defined alert dialog

removeDbAccessClient

public void removeDbAccessClient(java.lang.Object o)

removeDbAccessClient - remove object which is no longer interested in tracking this data item.

Parameters:

o - - objected which no longer cares to track this DbAccess item.

setIncompleteTransactionAlertUI

public void setIncompleteTransactionAlertUI(java.lang.Object o,
                                            IncompleteTransactionAlert alert)

set the UI which should be used to alert

Parameters:

o - - object interested in our DbAccess item.

alert - - user defined alert dialog

terminateTransaction

public boolean terminateTransaction(java.lang.Object o,
                                    boolean forceExit)

terminateTransaction()

Parameters:

o - - object which is terminating

forceExit - - force the user to exit ?. (do not show the cancel button clients would call this method to indicate that they want to terminate the transaction