com.espertech.esper.epl.named

Class NamedWindowOnSelectView

java.lang.Object

com.espertech.esper.view.ViewSupport

com.espertech.esper.epl.named.NamedWindowOnExprBaseView

com.espertech.esper.epl.named.NamedWindowOnSelectView

All Implemented Interfaces:

EventCollection, View, Viewable, Iterable<EventBean>

public class NamedWindowOnSelectView
extends NamedWindowOnExprBaseView

View for the on-select statement that handles selecting events from a named window.

Field Summary

Fields inherited from class com.espertech.esper.epl.named.NamedWindowOnExprBaseView

rootView

Fields inherited from class com.espertech.esper.view.ViewSupport

EMPTY_VIEW_ARRAY

Constructor Summary

Constructors

Constructor and Description
NamedWindowOnSelectView(SubordWMatchExprLookupStrategy lookupStrategy, NamedWindowRootViewInstance rootView, ExprEvaluatorContext exprEvaluatorContext, NamedWindowOnSelectViewFactory parent, ResultSetProcessor resultSetProcessor, boolean audit, boolean isDelete, TableStateInstance tableStateInstanceInsertInto)

Method Summary

Modifier and Type	Method and Description
static Set<MultiKey<EventBean>>	buildJoinResult(EventBean[] triggerEvents, EventBean[] matchingEvents)
EventType	getEventType() Provides metadata information about the type of object the event collection contains.
void	handleMatching(EventBean[] triggerEvents, EventBean[] matchingEvents) Implemented by on-trigger views to action on the combination of trigger and matching events in the named window.
Iterator<EventBean>	iterator() Allows iteration through all elements in this event collection.

Methods inherited from class com.espertech.esper.epl.named.NamedWindowOnExprBaseView

getExprEvaluatorContext, update

Methods inherited from class com.espertech.esper.view.ViewSupport

addView, addView, dumpChildViews, dumpUpdateParams, dumpUpdateParams, findDescendent, findViewIndex, getParent, getViews, hasViews, removeAllViews, removeView, removeView, setParent, updateChildren, updateChildren

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

NamedWindowOnSelectView

public NamedWindowOnSelectView(SubordWMatchExprLookupStrategy lookupStrategy,
                               NamedWindowRootViewInstance rootView,
                               ExprEvaluatorContext exprEvaluatorContext,
                               NamedWindowOnSelectViewFactory parent,
                               ResultSetProcessor resultSetProcessor,
                               boolean audit,
                               boolean isDelete,
                               TableStateInstance tableStateInstanceInsertInto)

Method Detail

handleMatching

public void handleMatching(EventBean[] triggerEvents,
                           EventBean[] matchingEvents)

Description copied from class: NamedWindowOnExprBaseView

Implemented by on-trigger views to action on the combination of trigger and matching events in the named window.

Specified by:

handleMatching in class NamedWindowOnExprBaseView

Parameters:

triggerEvents - is the trigger events (usually 1)

matchingEvents - is the matching events retrieved via lookup strategy

buildJoinResult

public static Set<MultiKey<EventBean>> buildJoinResult(EventBean[] triggerEvents,
                                                       EventBean[] matchingEvents)

getEventType

public EventType getEventType()

Description copied from interface: EventCollection

Provides metadata information about the type of object the event collection contains.

Returns:

metadata for the objects in the collection

iterator

public 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.