com.espertech.esper.epl.core

Class SelectExprProcessorEvalTypableMap

java.lang.Object

com.espertech.esper.epl.core.SelectExprProcessorEvalTypableMap

All Implemented Interfaces:

ExprEvaluator

public class SelectExprProcessorEvalTypableMap
extends Object
implements ExprEvaluator

Constructor Summary

Constructors

Constructor and Description
SelectExprProcessorEvalTypableMap(EventType mapType, ExprEvaluator innerEvaluator, EventAdapterService eventAdapterService)

Method Summary

Modifier and Type	Method and Description
Object	evaluate(EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext exprEvaluatorContext) Evaluate event tuple and return result.
ExprEvaluator	getInnerEvaluator()
Class	getType() Returns the type that the node's evaluate method returns an instance of.

Methods inherited from class java.lang.Object

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

Constructor Detail

SelectExprProcessorEvalTypableMap

public SelectExprProcessorEvalTypableMap(EventType mapType,
                                         ExprEvaluator innerEvaluator,
                                         EventAdapterService eventAdapterService)

Method Detail

evaluate

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

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)

exprEvaluatorContext - context for expression evaluation

Returns:

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

getType

public Class getType()

Description copied from interface: ExprEvaluator

Returns the type that the node's evaluate method returns an instance of.

Specified by:

getType in interface ExprEvaluator

Returns:

type returned when evaluated

getInnerEvaluator

public ExprEvaluator getInnerEvaluator()