com.espertech.esper.epl.lookup
Class SubordIndexedTableLookupStrategyLocking

java.lang.Object
  com.espertech.esper.epl.lookup.SubordIndexedTableLookupStrategyLocking

All Implemented Interfaces:

SubordTableLookupStrategy

public class SubordIndexedTableLookupStrategyLocking
extends java.lang.Object
implements SubordTableLookupStrategy

Index lookup strategy for subqueries.

Constructor Summary

SubordIndexedTableLookupStrategyLocking(SubordTableLookupStrategy inner, StatementAgentInstanceLock statementLock)

Method Summary

LookupStrategyDesc	getStrategyDesc()
java.util.Collection<EventBean>	lookup(EventBean[] events, ExprEvaluatorContext context) Returns matched events for a set of events to look up for.
java.lang.String	toQueryPlan()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SubordIndexedTableLookupStrategyLocking

public SubordIndexedTableLookupStrategyLocking(SubordTableLookupStrategy inner,
                                               StatementAgentInstanceLock statementLock)

Method Detail

lookup

public java.util.Collection<EventBean> lookup(EventBean[] events,
                                              ExprEvaluatorContext context)

Description copied from interface: SubordTableLookupStrategy

Returns matched events for a set of events to look up for. Never returns an empty result set, always returns null to indicate no results.

Specified by:

lookup in interface SubordTableLookupStrategy

Parameters:

events - to look up

Returns:

set of matching events, or null if none matching

getStrategyDesc

public LookupStrategyDesc getStrategyDesc()

Specified by:

getStrategyDesc in interface SubordTableLookupStrategy

toQueryPlan

public java.lang.String toQueryPlan()

Specified by:

toQueryPlan in interface SubordTableLookupStrategy