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java.lang.Objectnet.esper.eql.join.JoinSetComposerImpl
public class JoinSetComposerImpl
Implements the function to determine a join result set using tables/indexes and query strategy instances for each stream.
Constructor Summary | |
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JoinSetComposerImpl(EventTable[][] repositories,
QueryStrategy[] queryStrategies)
Ctor. |
Method Summary | |
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protected QueryStrategy[] |
getQueryStrategies()
Returns query strategies. |
protected EventTable[][] |
getTables()
Returns tables. |
UniformPair<Set<MultiKey<EventBean>>> |
join(EventBean[][] newDataPerStream,
EventBean[][] oldDataPerStream)
Return join tuple result set from new data and old data for each stream. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public JoinSetComposerImpl(EventTable[][] repositories, QueryStrategy[] queryStrategies)
repositories
- - for each stream an array of (indexed/unindexed) tables for lookup.queryStrategies
- - for each stream a strategy to execute the joinMethod Detail |
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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).
protected EventTable[][] getTables()
protected QueryStrategy[] getQueryStrategies()
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