com.espertech.esper.epl.expression.core

Class ExprNodeUtilUnderlyingEvaluatorTable

java.lang.Object

com.espertech.esper.epl.expression.core.ExprNodeUtilUnderlyingEvaluatorTable

All Implemented Interfaces:

ExprEvaluator, ExprForge

public class ExprNodeUtilUnderlyingEvaluatorTable
extends java.lang.Object
implements ExprEvaluator, ExprForge

Constructor Summary

Constructors

Constructor and Description
ExprNodeUtilUnderlyingEvaluatorTable(int streamNum, java.lang.Class resultType, TableMetadata tableMetadata)

Method Summary

Modifier and Type	Method and Description
java.lang.Object	evaluate(EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext context) Evaluate event tuple and return result.
CodegenExpression	evaluateCodegen(java.lang.Class requiredType, CodegenMethodScope parent, ExprForgeCodegenSymbol exprSymbol, CodegenClassScope codegenClassScope)
ExprForgeComplexityEnum	getComplexity()
java.lang.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

ExprNodeUtilUnderlyingEvaluatorTable

public ExprNodeUtilUnderlyingEvaluatorTable(int streamNum,
                                            java.lang.Class resultType,
                                            TableMetadata tableMetadata)

Method Detail

getExprEvaluator

public ExprEvaluator getExprEvaluator()

Specified by:

getExprEvaluator in interface ExprForge

getEvaluationType

public java.lang.Class getEvaluationType()

Specified by:

getEvaluationType in interface ExprForge

getComplexity

public ExprForgeComplexityEnum getComplexity()

Specified by:

getComplexity in interface ExprForge

getForgeRenderable

public ExprNodeRenderable getForgeRenderable()

Specified by:

getForgeRenderable in interface ExprForge

evaluate

public java.lang.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.

evaluateCodegen

public CodegenExpression evaluateCodegen(java.lang.Class requiredType,
                                         CodegenMethodScope parent,
                                         ExprForgeCodegenSymbol exprSymbol,
                                         CodegenClassScope codegenClassScope)

Specified by:

evaluateCodegen in interface ExprForge