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java.lang.Objectcom.espertech.esper.epl.join.plan.LookupInstructionPlan
public class LookupInstructionPlan
Plan for lookup using a from-stream event looking up one or more to-streams using a specified lookup plan for each to-stream.
Constructor Summary | |
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LookupInstructionPlan(int fromStream,
String fromStreamName,
int[] toStreams,
TableLookupPlan[] lookupPlans,
boolean[] requiredPerStream)
Ctor. |
Method Summary | |
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LookupInstructionExec |
makeExec(EventTable[][] indexesPerStream,
EventType[] streamTypes)
Constructs the executable from the plan. |
void |
print(IndentWriter writer)
Output the planned instruction. |
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 LookupInstructionPlan(int fromStream, String fromStreamName, int[] toStreams, TableLookupPlan[] lookupPlans, boolean[] requiredPerStream)
fromStream
- - the stream supplying the lookup eventfromStreamName
- - the stream name supplying the lookup eventtoStreams
- - the set of streams to look up inlookupPlans
- - the plan to use for each stream to look up inrequiredPerStream
- - indicates which of the lookup streams are required to build a result and which are notMethod Detail |
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public LookupInstructionExec makeExec(EventTable[][] indexesPerStream, EventType[] streamTypes)
indexesPerStream
- is the index objects for use in lookupsstreamTypes
- is the types of each stream
public void print(IndentWriter writer)
writer
- to output to
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