com.espertech.esper.epl.expression.funcs

Class ExprCastNodeForgeNonConstEval

java.lang.Object

com.espertech.esper.epl.expression.funcs.ExprCastNodeForgeNonConstEval

All Implemented Interfaces:

ExprEvaluator

public class ExprCastNodeForgeNonConstEval
extends Object
implements ExprEvaluator

Constructor Summary

Constructors

Constructor and Description
ExprCastNodeForgeNonConstEval(ExprCastNodeForge forge, ExprEvaluator evaluator, ExprCastNode.CasterParserComputer casterParserComputer)

Method Summary

Modifier and Type	Method and Description
static CodegenExpression	codegen(ExprCastNodeForge forge, CodegenContext context, CodegenParamSetExprPremade params)
Object	evaluate(EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext context) 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

ExprCastNodeForgeNonConstEval

public ExprCastNodeForgeNonConstEval(ExprCastNodeForge forge,
                                     ExprEvaluator evaluator,
                                     ExprCastNode.CasterParserComputer casterParserComputer)

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.

codegen

public static CodegenExpression codegen(ExprCastNodeForge forge,
                                        CodegenContext context,
                                        CodegenParamSetExprPremade params)