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

Class SubordHashedTableLookupStrategyPropFactory

java.lang.Object

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

All Implemented Interfaces:

SubordTableLookupStrategyFactory

public class SubordHashedTableLookupStrategyPropFactory
extends Object
implements SubordTableLookupStrategyFactory

Index lookup strategy for subqueries.

Field Summary

Fields

Modifier and Type	Field	Description
static final EPTypeClass	EPTYPE
protected final ExprEvaluator	evaluator

Constructor Summary

Constructors

Constructor	Description
SubordHashedTableLookupStrategyPropFactory(String[] properties, int[] keyStreamNums, ExprEvaluator evaluator)

Method Summary

Modifier and Type	Method	Description
int[]	getKeyStreamNums()
LookupStrategyDesc	getLookupStrategyDesc()
String[]	getProperties()	Returns properties to use from lookup event to look up in index.
SubordTableLookupStrategy	makeStrategy(EventTable[] eventTable, ExprEvaluatorContext exprEvaluatorContext, VirtualDWView vdw)
String	toQueryPlan()

Methods inherited from class java.lang.Object

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

Field Details

EPTYPE

public static final EPTypeClass EPTYPE

evaluator

protected final ExprEvaluator evaluator

Constructor Details

SubordHashedTableLookupStrategyPropFactory

public SubordHashedTableLookupStrategyPropFactory(String[] properties,
 int[] keyStreamNums,
 ExprEvaluator evaluator)

Method Details

makeStrategy

public SubordTableLookupStrategy makeStrategy(EventTable[] eventTable,
 ExprEvaluatorContext exprEvaluatorContext,
 VirtualDWView vdw)

Specified by:

makeStrategy in interface SubordTableLookupStrategyFactory

getProperties

public String[] getProperties()

Returns properties to use from lookup event to look up in index.

Returns:

properties to use from lookup event

toQueryPlan

public String toQueryPlan()

getLookupStrategyDesc

public LookupStrategyDesc getLookupStrategyDesc()

Specified by:

getLookupStrategyDesc in interface SubordTableLookupStrategyFactory

getKeyStreamNums

public int[] getKeyStreamNums()