public class SortedTableLookupStrategy extends Object implements JoinExecTableLookupStrategy
Use the composite strategy if supporting multiple ranges or if range is in combination with unique key.
Constructor and Description |
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SortedTableLookupStrategy(int lookupStream,
int numStreams,
QueryGraphValueEntryRange rangeKeyPair,
PropertySortedEventTable index) |
Modifier and Type | Method and Description |
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PropertySortedEventTable |
getIndex()
Returns index to look up in.
|
LookupStrategyType |
getLookupStrategyType() |
Set<EventBean> |
lookup(EventBean theEvent,
Cursor cursor,
ExprEvaluatorContext exprEvaluatorContext)
Returns matched events for a event to look up for.
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public SortedTableLookupStrategy(int lookupStream, int numStreams, QueryGraphValueEntryRange rangeKeyPair, PropertySortedEventTable index)
public PropertySortedEventTable getIndex()
public Set<EventBean> lookup(EventBean theEvent, Cursor cursor, ExprEvaluatorContext exprEvaluatorContext)
JoinExecTableLookupStrategy
lookup
in interface JoinExecTableLookupStrategy
theEvent
- to look upcursor
- the path in the query that the lookup tookexprEvaluatorContext
- expression evaluation contextpublic LookupStrategyType getLookupStrategyType()
getLookupStrategyType
in interface JoinExecTableLookupStrategy
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