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

UpdateStrategyExists(RevisionSpec spec)
Ctor.

Method Summary

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