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java.lang.Objectnet.esper.eql.join.plan.QueryPlanIndexBuilder
public class QueryPlanIndexBuilder
Build query index plans.
Constructor Summary | |
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QueryPlanIndexBuilder()
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Method Summary | |
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static QueryPlanIndex[] |
buildIndexSpec(QueryGraph queryGraph)
Build index specification from navigability info. |
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 QueryPlanIndexBuilder()
Method Detail |
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public static QueryPlanIndex[] buildIndexSpec(QueryGraph queryGraph)
Looks at each stream and determines which properties in the stream must be indexed in order for other streams to look up into the stream. Determines the unique set of properties to avoid building duplicate indexes on the same set of properties.
queryGraph
- - navigability info
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