com.espertech.esper.epl.expression.dot

Class ExprDotNodeForgeStreamEvalMethod

java.lang.Object

com.espertech.esper.epl.expression.dot.ExprDotNodeForgeStreamEvalMethod

All Implemented Interfaces:

ExprEvaluator

public class ExprDotNodeForgeStreamEvalMethod
extends java.lang.Object
implements ExprEvaluator

Constructor Summary

Constructors

Constructor and Description
ExprDotNodeForgeStreamEvalMethod(ExprDotNodeForgeStream forge, ExprDotEval[] evaluators)

Method Summary

Modifier and Type	Method and Description
static CodegenExpression	codegen(ExprDotNodeForgeStream forge, CodegenMethodScope codegenMethodScope, ExprForgeCodegenSymbol exprSymbol, CodegenClassScope codegenClassScope)
java.lang.Object	evaluate(EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext exprEvaluatorContext) 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

ExprDotNodeForgeStreamEvalMethod

public ExprDotNodeForgeStreamEvalMethod(ExprDotNodeForgeStream forge,
                                        ExprDotEval[] evaluators)

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

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.

codegen

public static CodegenExpression codegen(ExprDotNodeForgeStream forge,
                                        CodegenMethodScope codegenMethodScope,
                                        ExprForgeCodegenSymbol exprSymbol,
                                        CodegenClassScope codegenClassScope)