|
||||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
java.lang.Objectcom.espertech.esper.epl.join.JoinSetComposerStreamToWinImpl
public class JoinSetComposerStreamToWinImpl
Implements the function to determine a join result for a unidirectional stream-to-window joins, in which a single stream's events are every only evaluated using a query strategy.
Constructor Summary | |
---|---|
JoinSetComposerStreamToWinImpl(EventTable[][] repositories,
int streamNumber,
QueryStrategy queryStrategy)
Ctor. |
Method Summary | |
---|---|
void |
destroy()
Destroy stateful index tables, if any. |
void |
init(EventBean[][] eventsPerStream)
Provides initialization events per stream to composer to populate join indexes, if required |
UniformPair<Set<MultiKey<EventBean>>> |
join(EventBean[][] newDataPerStream,
EventBean[][] oldDataPerStream)
Return join tuple result set from new data and old data for each stream. |
Set<MultiKey<EventBean>> |
staticJoin()
For use in iteration over join statements, this must build a join tuple result set from all events in indexes, executing query strategies for each. |
Methods inherited from class java.lang.Object |
---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
---|
public JoinSetComposerStreamToWinImpl(EventTable[][] repositories, int streamNumber, QueryStrategy queryStrategy)
repositories
- - for each stream an array of (indexed/unindexed) tables for lookup.streamNumber
- is the undirectional streamqueryStrategy
- is the lookup query strategy for the streamMethod Detail |
---|
public void init(EventBean[][] eventsPerStream)
JoinSetComposer
init
in interface JoinSetComposer
eventsPerStream
- is an array of events for each stream, with null elements to indicate no events for a streampublic void destroy()
JoinSetComposer
destroy
in interface JoinSetComposer
public UniformPair<Set<MultiKey<EventBean>>> join(EventBean[][] newDataPerStream, EventBean[][] oldDataPerStream)
JoinSetComposer
join
in interface JoinSetComposer
newDataPerStream
- - for each stream the event array (can be null).oldDataPerStream
- - for each stream the event array (can be null).
public Set<MultiKey<EventBean>> staticJoin()
JoinSetComposer
staticJoin
in interface JoinSetComposer
|
© 2007 EsperTech Inc. All rights reserved. Visit us at espertech.com |
|||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |