com.espertech.esper.epl.named
Class NamedWindowOnSelectView

java.lang.Object
  extended by com.espertech.esper.view.ViewSupport
      extended by com.espertech.esper.epl.named.NamedWindowOnExprBaseView
          extended by com.espertech.esper.epl.named.NamedWindowOnSelectView
All Implemented Interfaces:
EventCollection, StatementStopCallback, 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
namedWindowEventType, rootView
 
Fields inherited from class com.espertech.esper.view.ViewSupport
parent
 
Constructor Summary
NamedWindowOnSelectView(StatementStopService statementStopService, LookupStrategy lookupStrategy, NamedWindowRootView rootView, InternalEventRouter internalEventRouter, ResultSetProcessor resultSetProcessor, EPStatementHandle statementHandle, StatementResultService statementResultService)
          Ctor.
 
Method Summary
 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
statementStopped, update
 
Methods inherited from class com.espertech.esper.view.ViewSupport
addView, dumpChildViews, dumpUpdateParams, dumpUpdateParams, findDescendent, getParent, getViews, hasViews, removeView, setParent, updateChildren, updateChildren
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

NamedWindowOnSelectView

public NamedWindowOnSelectView(StatementStopService statementStopService,
                               LookupStrategy lookupStrategy,
                               NamedWindowRootView rootView,
                               InternalEventRouter internalEventRouter,
                               ResultSetProcessor resultSetProcessor,
                               EPStatementHandle statementHandle,
                               StatementResultService statementResultService)
Ctor.

Parameters:
statementStopService - for indicating a statement was stopped or destroyed for cleanup
lookupStrategy - for handling trigger events to determine deleted events
rootView - the named window root view
internalEventRouter - for insert-into behavior
resultSetProcessor - for processing aggregation, having and ordering
statementHandle - required for routing events
statementResultService - for coordinating on whether insert and remove stream events should be posted
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

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.

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