com.espertech.esper.epl.expression.funcs

Class ExprInstanceofNodeForgeEval

java.lang.Object

com.espertech.esper.epl.expression.funcs.ExprInstanceofNodeForgeEval

All Implemented Interfaces:

ExprEvaluator

public class ExprInstanceofNodeForgeEval
extends Object
implements ExprEvaluator

Constructor Summary

Constructors

Constructor and Description
ExprInstanceofNodeForgeEval(ExprInstanceofNodeForge forge, ExprEvaluator evaluator)

Method Summary

Modifier and Type	Method and Description
static CodegenExpression	codegen(ExprInstanceofNodeForge forge, CodegenContext context, CodegenParamSetExprPremade params)
Object	evaluate(EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext exprEvaluatorContext) Evaluate event tuple and return result.
static Boolean	instanceofCacheCheckOrAdd(Class[] classes, CopyOnWriteArrayList<Pair<Class,Boolean>> resultCache, Object result) NOTE: Code-generation-invoked method, method name and parameter order matters

Methods inherited from class java.lang.Object

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

Constructor Detail

ExprInstanceofNodeForgeEval

public ExprInstanceofNodeForgeEval(ExprInstanceofNodeForge forge,
                                   ExprEvaluator evaluator)

Method Detail

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.

instanceofCacheCheckOrAdd

public static Boolean instanceofCacheCheckOrAdd(Class[] classes,
                                                CopyOnWriteArrayList<Pair<Class,Boolean>> resultCache,
                                                Object result)

NOTE: Code-generation-invoked method, method name and parameter order matters

Parameters:

classes - classes

resultCache - cache

result - result

Returns:

bool

codegen

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