com.espertech.esper.epl.table.strategy

Class ExprTableExprEvaluatorMethod

java.lang.Object

com.espertech.esper.epl.table.strategy.ExprTableExprEvaluatorBase

com.espertech.esper.epl.table.strategy.ExprTableExprEvaluatorMethod

All Implemented Interfaces:

ExprEvaluator

public class ExprTableExprEvaluatorMethod
extends ExprTableExprEvaluatorBase
implements ExprEvaluator

Field Summary

Fields inherited from class com.espertech.esper.epl.table.strategy.ExprTableExprEvaluatorBase

exprNode, returnType, streamNum, subpropName, tableName

Constructor Summary

Constructors

Constructor and Description
ExprTableExprEvaluatorMethod(ExprNode exprNode, String tableName, String subpropName, int streamNum, Class returnType, int methodNum)

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 com.espertech.esper.epl.table.strategy.ExprTableExprEvaluatorBase

getReturnType

Methods inherited from class java.lang.Object

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

Constructor Detail

ExprTableExprEvaluatorMethod

public ExprTableExprEvaluatorMethod(ExprNode exprNode,
                                    String tableName,
                                    String subpropName,
                                    int streamNum,
                                    Class returnType,
                                    int methodNum)

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.