com.espertech.esper.common.internal.epl.lookup

Class SubordHashedTableLookupStrategyProp

java.lang.Object

com.espertech.esper.common.internal.epl.lookup.SubordHashedTableLookupStrategyProp

All Implemented Interfaces:

SubordTableLookupStrategy

public class SubordHashedTableLookupStrategyProp
extends Object
implements SubordTableLookupStrategy

Index lookup strategy for subqueries.

Constructor Summary

Constructors

Constructor and Description
SubordHashedTableLookupStrategyProp(SubordHashedTableLookupStrategyPropFactory factory, PropertyHashedEventTable index)

Method Summary

Modifier and Type	Method and Description
protected Object	getKey(EventBean[] eventsPerStream, ExprEvaluatorContext context)
LookupStrategyDesc	getStrategyDesc()
Collection<EventBean>	lookup(EventBean[] eventsPerStream, ExprEvaluatorContext context) Returns matched events for a set of events to look up for.
String	toQueryPlan()
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

SubordHashedTableLookupStrategyProp

public SubordHashedTableLookupStrategyProp(SubordHashedTableLookupStrategyPropFactory factory,
                                           PropertyHashedEventTable index)

Method Detail

lookup

public Collection<EventBean> lookup(EventBean[] eventsPerStream,
                                    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:

eventsPerStream - to look up

context - context

Returns:

set of matching events, or null if none matching

getKey

protected Object getKey(EventBean[] eventsPerStream,
                        ExprEvaluatorContext context)

toString

public String toString()

Overrides:

toString in class Object

getStrategyDesc

public LookupStrategyDesc getStrategyDesc()

Specified by:

getStrategyDesc in interface SubordTableLookupStrategy

toQueryPlan

public String toQueryPlan()

Specified by:

toQueryPlan in interface SubordTableLookupStrategy