com.espertech.esper.event.vaevent

Class UpdateStrategyExists

java.lang.Object

com.espertech.esper.event.vaevent.UpdateStrategyBase

com.espertech.esper.event.vaevent.UpdateStrategyExists

All Implemented Interfaces:

UpdateStrategy

public class UpdateStrategyExists
extends UpdateStrategyBase

Strategy for merging update properties using only existing property's values.

Field Summary

Fields inherited from class com.espertech.esper.event.vaevent.UpdateStrategyBase

spec

Constructor Summary

Constructors

Constructor and Description
UpdateStrategyExists(RevisionSpec spec) Ctor.

Method Summary

Modifier and Type	Method and Description
void	handleUpdate(boolean isBaseEventType, RevisionStateMerge revisionState, RevisionEventBeanMerge revisionEvent, RevisionTypeDesc typesDesc) Merge properties.

Methods inherited from class com.espertech.esper.event.vaevent.UpdateStrategyBase

arrayCopy

Methods inherited from class java.lang.Object

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

Constructor Detail

UpdateStrategyExists

public UpdateStrategyExists(RevisionSpec spec)

Ctor.

Parameters:

spec - the specification

Method Detail

handleUpdate

public void handleUpdate(boolean isBaseEventType,
                         RevisionStateMerge revisionState,
                         RevisionEventBeanMerge revisionEvent,
                         RevisionTypeDesc typesDesc)

Description copied from interface: UpdateStrategy

Merge properties.

Parameters:

isBaseEventType - true if the event is a base event type

revisionState - the current state, to be updated.

revisionEvent - the new event to merge

typesDesc - descriptor for event type of the new event to merge