Package com.espertech.esper.common.internal.view.access

Class RelativeAccessByEventNIndexGetterImpl

java.lang.Object

com.espertech.esper.common.internal.view.access.RelativeAccessByEventNIndexGetterImpl

All Implemented Interfaces:

RelativeAccessByEventNIndexGetter, IStreamRelativeAccess.IStreamRelativeAccessUpdateObserver, PreviousGetterStrategy

public class RelativeAccessByEventNIndexGetterImpl
extends Object
implements IStreamRelativeAccess.IStreamRelativeAccessUpdateObserver, RelativeAccessByEventNIndexGetter, PreviousGetterStrategy

Provides random-access into window contents by event and index as a combination.

Field Summary

Fields inherited from interface com.espertech.esper.common.internal.view.previous.PreviousGetterStrategy

EMPTY_ARRAY, EPTYPE

Fields inherited from interface com.espertech.esper.common.internal.view.access.RelativeAccessByEventNIndexGetter

EPTYPE

Constructor Summary

Constructors

Constructor	Description
RelativeAccessByEventNIndexGetterImpl()

Method Summary

Modifier and Type	Method	Description
RelativeAccessByEventNIndex	getAccessor(EventBean theEvent)	Returns the access into window contents given an event.
PreviousGetterStrategy	getStrategy(ExprEvaluatorContext ctx)
void	updated(RelativeAccessByEventNIndex iStreamRelativeAccess, EventBean[] newData)	Callback to indicate an update.

Methods inherited from class java.lang.Object

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

Constructor Details

RelativeAccessByEventNIndexGetterImpl

public RelativeAccessByEventNIndexGetterImpl()

Method Details

updated

public void updated(RelativeAccessByEventNIndex iStreamRelativeAccess,
 EventBean[] newData)

Description copied from interface: IStreamRelativeAccess.IStreamRelativeAccessUpdateObserver

Callback to indicate an update.

Specified by:

updated in interface IStreamRelativeAccess.IStreamRelativeAccessUpdateObserver

Parameters:

iStreamRelativeAccess - is the collection

newData - is the new data available

getAccessor

public RelativeAccessByEventNIndex getAccessor(EventBean theEvent)

Returns the access into window contents given an event.

Specified by:

getAccessor in interface RelativeAccessByEventNIndexGetter

Parameters:

theEvent - to which the method returns relative access from

Returns:

buffer

getStrategy

public PreviousGetterStrategy getStrategy(ExprEvaluatorContext ctx)

Specified by:

getStrategy in interface PreviousGetterStrategy