oracle.dacf.control.swing
Class CachedColumnModelSupport

java.lang.Object
  javax.swing.AbstractListModel
      oracle.dacf.control.swing.ColumnModelSupport
          oracle.dacf.control.swing.CachedColumnModelSupport

All Implemented Interfaces:

oracle.dacf.rp.Consumer, javax.infobus.DataItemChangeListener, java.util.EventListener, javax.infobus.InfoBusDataConsumer, javax.infobus.InfoBusEventListener, InfoBusManagerListener, javax.infobus.InfoBusMember, javax.swing.ListModel, oracle.dacf.rp.Participant, java.beans.PropertyChangeListener, java.io.Serializable

Direct Known Subclasses:

ComboBoxDataSource

public class CachedColumnModelSupport

extends ColumnModelSupport

List Column Model which supports caching of attribute values. The ImmediateAccess returned from RowsetAccess is wrapped with a CachedImmediateAccess item. This is done to reduce the number of getAttribute calls on the ViewObject. This class manages the lifetime of cached items by responding to the data item change events

See Also:

Serialized Form

Field Summary

Fields inherited from class oracle.dacf.control.swing.ColumnModelSupport

bDisableEvent

Fields inherited from class javax.swing.AbstractListModel

listenerList

Constructor Summary

CachedColumnModelSupport(Control c)

Method Summary

protected void	_releaseResourcesInternal(InfoBusManagerReleaseEvent e)
protected java.lang.Object	findCachedItem(java.lang.Object x)
java.lang.Object	getElementAt(int index) Get the item at the specifed 0 based index
boolean	isCachingEnabled()
protected void	revokeAllRows()
protected void	rowsAdded(int startIndex, int count)
protected void	rowsAvailable()
protected void	rowsChanged(int startIndex, int count)
protected void	rowsRevoked()
void	setCachingEnabled(boolean flag)

Methods inherited from class oracle.dacf.control.swing.ColumnModelSupport

_findColumnIndex, _getItemFromCursor, _isRowChanged, _isViewRefreshed, addInfoBusPropertyListener, addInfoBusVetoableListener, available, dataItemAdded, dataItemAvailable, dataItemDeleted, dataItemRevoked, dataItemRevoked, dataItemValueChanged, getArrayAccess, getDataItemName, getInfoBus, getInfoBusName, getRowsetAccess, getSelection, getSize, propertyChange, releaseResources, removeInfoBusPropertyListener, removeInfoBusVetoableListener, revoked, rowsDeleted, rowsetCursorMoved, setDataItemName, setInfoBus, setInfoBusName, setSelection

Methods inherited from class javax.swing.AbstractListModel

addListDataListener, fireContentsChanged, fireIntervalAdded, fireIntervalRemoved, getListDataListeners, getListeners, removeListDataListener

Methods inherited from class java.lang.Object

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

Constructor Detail

CachedColumnModelSupport

public CachedColumnModelSupport(Control c)

Method Detail

setCachingEnabled

public void setCachingEnabled(boolean flag)

isCachingEnabled

public boolean isCachingEnabled()

getElementAt

public java.lang.Object getElementAt(int index)

Get the item at the specifed 0 based index

Specified by:

getElementAt in interface javax.swing.ListModel

Overrides:

getElementAt in class ColumnModelSupport

Returns:

the item

rowsAvailable

protected void rowsAvailable()

Overrides:

rowsAvailable in class ColumnModelSupport

rowsRevoked

protected void rowsRevoked()

Overrides:

rowsRevoked in class ColumnModelSupport

rowsAdded

protected void rowsAdded(int startIndex,
                         int count)

Overrides:

rowsAdded in class ColumnModelSupport

rowsChanged

protected void rowsChanged(int startIndex,
                           int count)

Overrides:

rowsChanged in class ColumnModelSupport

revokeAllRows

protected void revokeAllRows()

findCachedItem

protected java.lang.Object findCachedItem(java.lang.Object x)

_releaseResourcesInternal

protected void _releaseResourcesInternal(InfoBusManagerReleaseEvent e)

Overrides:

_releaseResourcesInternal in class ColumnModelSupport