com.espertech.esper.epl.expression.subquery
Class SubselectEvalStrategyEqualsIn

java.lang.Object
  com.espertech.esper.epl.expression.subquery.SubselectEvalStrategyEqualsIn

All Implemented Interfaces:

SubselectEvalStrategy

public class SubselectEvalStrategyEqualsIn
extends java.lang.Object
implements SubselectEvalStrategy

Represents a in-subselect evaluation strategy.

Constructor Summary

SubselectEvalStrategyEqualsIn(boolean notIn, boolean mustCoerce, java.lang.Class coercionType, ExprEvaluator valueExpr, ExprEvaluator selectClauseExpr, ExprEvaluator filterExpr)
Ctor.

Method Summary

java.lang.Object

evaluate(EventBean[] eventsPerStream, boolean isNewData, java.util.Collection<EventBean> matchingEvents, ExprEvaluatorContext exprEvaluatorContext) Evaluate.

Methods inherited from class java.lang.Object

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

Constructor Detail

SubselectEvalStrategyEqualsIn

public SubselectEvalStrategyEqualsIn(boolean notIn,
                                     boolean mustCoerce,
                                     java.lang.Class coercionType,
                                     ExprEvaluator valueExpr,
                                     ExprEvaluator selectClauseExpr,
                                     ExprEvaluator filterExpr)

Ctor.

Parameters:

notIn - false for =, true for !=

mustCoerce - coercion required

coercionType - type to coerce to

valueExpr - LHS

selectClauseExpr - select clause or null

filterExpr - filter or null

Method Detail

evaluate

public java.lang.Object evaluate(EventBean[] eventsPerStream,
                                 boolean isNewData,
                                 java.util.Collection<EventBean> matchingEvents,
                                 ExprEvaluatorContext exprEvaluatorContext)

Description copied from interface: SubselectEvalStrategy

Evaluate.

Specified by:

evaluate in interface SubselectEvalStrategy

Parameters:

eventsPerStream - events per stream

isNewData - true for new data

matchingEvents - prefiltered events

exprEvaluatorContext - expression evaluation context

Returns:

eval result