com.espertech.esper.epl.declexpr

Class ExprDeclaredForgeConstant

java.lang.Object

com.espertech.esper.epl.declexpr.ExprDeclaredForgeConstant

All Implemented Interfaces:

ExprEvaluator, ExprForge

public class ExprDeclaredForgeConstant
extends Object
implements ExprForge, ExprEvaluator

Constructor Summary

Constructors

Constructor and Description
ExprDeclaredForgeConstant(ExprDeclaredNodeImpl parent, Class returnType, ExpressionDeclItem prototype, Object value, boolean audit, String engineURI, String statementName)

Method Summary

Modifier and Type	Method and Description
Object	evaluate(EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext context) Evaluate event tuple and return result.
CodegenExpression	evaluateCodegen(CodegenParamSetExprPremade params, CodegenContext context)
ExprForgeComplexityEnum	getComplexity()
Class	getEvaluationType()
ExprEvaluator	getExprEvaluator()
ExprNodeRenderable	getForgeRenderable()

Methods inherited from class java.lang.Object

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

Constructor Detail

ExprDeclaredForgeConstant

public ExprDeclaredForgeConstant(ExprDeclaredNodeImpl parent,
                                 Class returnType,
                                 ExpressionDeclItem prototype,
                                 Object value,
                                 boolean audit,
                                 String engineURI,
                                 String statementName)

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.

getExprEvaluator

public ExprEvaluator getExprEvaluator()

Specified by:

getExprEvaluator in interface ExprForge

getComplexity

public ExprForgeComplexityEnum getComplexity()

Specified by:

getComplexity in interface ExprForge

evaluateCodegen

public CodegenExpression evaluateCodegen(CodegenParamSetExprPremade params,
                                         CodegenContext context)

Specified by:

evaluateCodegen in interface ExprForge

getEvaluationType

public Class getEvaluationType()

Specified by:

getEvaluationType in interface ExprForge

getForgeRenderable

public ExprNodeRenderable getForgeRenderable()

Specified by:

getForgeRenderable in interface ExprForge