com.espertech.esper.epl.expression.core
Class ExprIdentNodeEvaluatorLogging

java.lang.Object
  com.espertech.esper.epl.expression.core.ExprIdentNodeEvaluatorImpl
      com.espertech.esper.epl.expression.core.ExprIdentNodeEvaluatorLogging

All Implemented Interfaces:

ExprEvaluator, ExprIdentNodeEvaluator

public class ExprIdentNodeEvaluatorLogging
extends ExprIdentNodeEvaluatorImpl

Constructor Summary

ExprIdentNodeEvaluatorLogging(int streamNum, EventPropertyGetter propertyGetter, java.lang.Class propertyType, ExprIdentNode identNode, java.lang.String propertyName, java.lang.String statementName, java.lang.String engineURI)

Method Summary

java.lang.Object

evaluate(EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext exprEvaluatorContext) Evaluate event tuple and return result.

Methods inherited from class com.espertech.esper.epl.expression.core.ExprIdentNodeEvaluatorImpl

evaluatePropertyExists, getGetter, getStreamNum, getType, isContextEvaluated

Methods inherited from class java.lang.Object

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

Constructor Detail

ExprIdentNodeEvaluatorLogging

public ExprIdentNodeEvaluatorLogging(int streamNum,
                                     EventPropertyGetter propertyGetter,
                                     java.lang.Class propertyType,
                                     ExprIdentNode identNode,
                                     java.lang.String propertyName,
                                     java.lang.String statementName,
                                     java.lang.String engineURI)

Method Detail

evaluate

public java.lang.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

Overrides:

evaluate in class ExprIdentNodeEvaluatorImpl

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.