oracle.javatools.data

Class ChangeBuffer

java.lang.Object

oracle.javatools.data.StructureChangeListener

oracle.javatools.data.ChangeBuffer

All Implemented Interfaces:

java.util.EventListener

public final class ChangeBuffer
extends StructureChangeListener

This class is a specialized StructureChangeListener whose purpose is to buffer and accumulate ChangeInfo objects representing changes that have occurred to a Structure. It is used primarily by Structure.applyBatchChanges(java.lang.Runnable) to buffer changes until the Runnable complets, so that a single change event is fired when the Runnable finishes. However, it can also be used as a means to capturing "deltas" that have occurred on a HashStructure between two discrete points in time so that the deltas can be applied via HashStructure.applyChanges(oracle.javatools.data.ChangeInfo[]) instead of performing a deep copy.

Constructor Summary

Constructors

Constructor and Description
ChangeBuffer()

Method Summary

Methods

Modifier and Type	Method and Description
ChangeInfo[]	getChanges()
void	structureValuesChanged(StructureChangeEvent e) This method is called when a change occurs in a structure.

Methods inherited from class java.lang.Object

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

Constructor Detail

ChangeBuffer

public ChangeBuffer()

Method Detail

structureValuesChanged

public void structureValuesChanged(StructureChangeEvent e)

Description copied from class: StructureChangeListener

This method is called when a change occurs in a structure. The change details are in the specified event object.

Specified by:

structureValuesChanged in class StructureChangeListener

getChanges

public ChangeInfo[] getChanges()