Package com.espertech.esper.common.internal.epl.expression.ops

Class ExprMathNodeForgeEval

java.lang.Object

com.espertech.esper.common.internal.epl.expression.ops.ExprMathNodeForgeEval

All Implemented Interfaces:

ExprEvaluator

public class ExprMathNodeForgeEval
extends Object
implements ExprEvaluator

Field Summary

Fields inherited from interface com.espertech.esper.common.internal.epl.expression.core.ExprEvaluator

EPTYPE, EPTYPEARRAY

Constructor Summary

Constructors

Constructor	Description
ExprMathNodeForgeEval(ExprMathNodeForge forge, ExprEvaluator evaluatorLeft, ExprEvaluator evaluatorRight)

Method Summary

Modifier and Type	Method	Description
static CodegenMethod	codegen(ExprMathNodeForge forge, CodegenMethodScope codegenMethodScope, ExprForgeCodegenSymbol exprSymbol, CodegenClassScope codegenClassScope, ExprNode lhs, ExprNode rhs)
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 Details

ExprMathNodeForgeEval

public ExprMathNodeForgeEval(ExprMathNodeForge forge,
 ExprEvaluator evaluatorLeft,
 ExprEvaluator evaluatorRight)

Method Details

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.

codegen

public static CodegenMethod codegen(ExprMathNodeForge forge,
 CodegenMethodScope codegenMethodScope,
 ExprForgeCodegenSymbol exprSymbol,
 CodegenClassScope codegenClassScope,
 ExprNode lhs,
 ExprNode rhs)