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java.lang.Objectnet.esper.eql.join.plan.TableLookupPlan
public abstract class TableLookupPlan
Abstract specification on how to perform a table lookup.
Constructor Summary | |
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protected |
TableLookupPlan(int lookupStream,
int indexedStream,
int indexNum)
Ctor. |
Method Summary | |
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int |
getIndexedStream()
Returns indexed stream. |
int |
getIndexNum()
Returns index number to use for looking up in. |
int |
getLookupStream()
Returns the lookup stream. |
abstract TableLookupStrategy |
makeStrategy(EventTable[][] indexesPerStream,
EventType[] eventTypes)
Instantiates the lookup plan into a execution strategy for the lookup. |
java.lang.String |
toString()
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Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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protected TableLookupPlan(int lookupStream, int indexedStream, int indexNum)
lookupStream
- - stream number of stream that supplies event to be used to look upindexedStream
- - - stream number of stream that is being access via index/tableindexNum
- - index to use for lookupMethod Detail |
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public abstract TableLookupStrategy makeStrategy(EventTable[][] indexesPerStream, EventType[] eventTypes)
indexesPerStream
- - tables for each streameventTypes
- - types of events in stream
public int getLookupStream()
public int getIndexedStream()
public int getIndexNum()
public java.lang.String toString()
toString
in class java.lang.Object
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