com.espertech.esper.epl.expression.core

Class ExprNodeUtilExprStreamNumEnumCollEval

java.lang.Object

com.espertech.esper.epl.expression.core.ExprNodeUtilExprStreamNumEnumCollEval

All Implemented Interfaces:

ExprEvaluator

public class ExprNodeUtilExprStreamNumEnumCollEval
extends Object
implements ExprEvaluator

Constructor Summary

Constructors

Constructor and Description
ExprNodeUtilExprStreamNumEnumCollEval(ExprEnumerationEval enumeration)

Method Summary

Modifier and Type	Method and Description
Object	evaluate(EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext context) Evaluate event tuple and return result.

Methods inherited from class java.lang.Object

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

Constructor Detail

ExprNodeUtilExprStreamNumEnumCollEval

public ExprNodeUtilExprStreamNumEnumCollEval(ExprEnumerationEval enumeration)

Method Detail

evaluate

public Object evaluate(EventBean[] eventsPerStream,
                       boolean isNewData,
                       ExprEvaluatorContext context)

Description copied from interface: ExprEvaluator

Evaluate event tuple and return result.

Specified by:

evaluate in interface ExprEvaluator

Parameters:

eventsPerStream - - event tuple

isNewData - - indicates whether we are dealing with new data (istream) or old data (rstream)

context - context for expression evaluation

Returns:

evaluation result, a boolean value for OR/AND-type evalution nodes.