com.espertech.esper.epl.view
Class OutputProcessViewDirect

java.lang.Object
  com.espertech.esper.epl.view.OutputProcessViewBase
      com.espertech.esper.epl.view.OutputProcessViewDirect

All Implemented Interfaces:

JoinSetIndicator, JoinSetProcessor, OutputProcessViewTerminable, StopCallback, EventCollection, View, Viewable, java.lang.Iterable<EventBean>

Direct Known Subclasses:

OutputProcessViewDirectPostProcess

public class OutputProcessViewDirect
extends OutputProcessViewBase

Output process view that does not enforce any output policies and may simply hand over events to child views, does not handle distinct.

Field Summary

Fields inherited from class com.espertech.esper.epl.view.OutputProcessViewBase

childView, joinExecutionStrategy, parentView, resultSetProcessor

Constructor Summary

OutputProcessViewDirect(ResultSetProcessor resultSetProcessor, OutputProcessViewDirectFactory parent)

Method Summary

int	getNumChangesetRows()
OutputCondition	getOptionalOutputCondition()
java.util.Iterator<EventBean>	iterator() Allows iteration through all elements in this event collection.
protected void	postProcess(boolean force, UniformPair<EventBean[]> newOldEvents, UpdateDispatchView childView)
void	process(java.util.Set<MultiKey<EventBean>> newEvents, java.util.Set<MultiKey<EventBean>> oldEvents, ExprEvaluatorContext exprEvaluatorContext) This process (update) method is for participation in a join.
void	stop() Stops the underlying resources.
void	terminated()
void	update(EventBean[] newData, EventBean[] oldData) The update method is called if the view does not participate in a join.

Methods inherited from class com.espertech.esper.epl.view.OutputProcessViewBase

addView, getEventType, getParent, getViews, hasViews, removeAllViews, removeView, setJoinExecutionStrategy, setParent

Methods inherited from class java.lang.Object

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

Constructor Detail

OutputProcessViewDirect

public OutputProcessViewDirect(ResultSetProcessor resultSetProcessor,
                               OutputProcessViewDirectFactory parent)

Method Detail

getNumChangesetRows

public int getNumChangesetRows()

Specified by:

getNumChangesetRows in class OutputProcessViewBase

getOptionalOutputCondition

public OutputCondition getOptionalOutputCondition()

Specified by:

getOptionalOutputCondition in class OutputProcessViewBase

update

public void update(EventBean[] newData,
                   EventBean[] oldData)

The update method is called if the view does not participate in a join.

Parameters:

newData - - new events

oldData - - old events

process

public void process(java.util.Set<MultiKey<EventBean>> newEvents,
                    java.util.Set<MultiKey<EventBean>> oldEvents,
                    ExprEvaluatorContext exprEvaluatorContext)

This process (update) method is for participation in a join.

Parameters:

newEvents - - new events

oldEvents - - old events

exprEvaluatorContext - expression evaluation context

postProcess

protected void postProcess(boolean force,
                           UniformPair<EventBean[]> newOldEvents,
                           UpdateDispatchView childView)

iterator

public java.util.Iterator<EventBean> iterator()

Description copied from interface: EventCollection

Allows iteration through all elements in this event collection. The iterator will return the elements in the collection in their natural order, or, if there is no natural ordering, in some unpredictable order.

Returns:

an iterator which will go through all current elements in the collection.

terminated

public void terminated()

stop

public void stop()

Description copied from interface: StopCallback

Stops the underlying resources.