com.espertech.esper.epl.script

Class ExprNodeScriptEvalMVEL

java.lang.Object

com.espertech.esper.epl.script.ExprNodeScriptEvalBase

com.espertech.esper.epl.script.ExprNodeScriptEvalMVEL

All Implemented Interfaces:

ExprEvaluator, ExprEvaluatorEnumeration, ExprNodeScriptEvaluator

public class ExprNodeScriptEvalMVEL
extends ExprNodeScriptEvalBase
implements ExprNodeScriptEvaluator

Field Summary

Fields inherited from class com.espertech.esper.epl.script.ExprNodeScriptEvalBase

coercer, eventTypeCollection, names, parameters, returnType, scriptName, statementName

Constructor Summary

Constructors

Constructor and Description
ExprNodeScriptEvalMVEL(String scriptName, String statementName, String[] names, ExprEvaluator[] parameters, Class returnType, EventType eventTypeCollection, Object executable)

Method Summary

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

Methods inherited from class com.espertech.esper.epl.script.ExprNodeScriptEvalBase

evaluateGetEventBean, evaluateGetROCollectionEvents, evaluateGetROCollectionScalar, getComponentTypeCollection, getEventTypeCollection, getEventTypeSingle, getType

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.espertech.esper.epl.expression.core.ExprEvaluator

getType

Constructor Detail

ExprNodeScriptEvalMVEL

public ExprNodeScriptEvalMVEL(String scriptName,
                              String statementName,
                              String[] names,
                              ExprEvaluator[] parameters,
                              Class returnType,
                              EventType eventTypeCollection,
                              Object executable)

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.

evaluate

public Object evaluate(Object[] lookupValues,
                       ExprEvaluatorContext context)

Specified by:

evaluate in interface ExprNodeScriptEvaluator