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

Class ExprInstanceofNodeForgeEval

java.lang.Object

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

All Implemented Interfaces:

ExprEvaluator

public class ExprInstanceofNodeForgeEval
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
ExprInstanceofNodeForgeEval(ExprInstanceofNodeForge forge, ExprEvaluator evaluator)

Method Summary

Modifier and Type	Method	Description
static CodegenExpression	codegen(ExprInstanceofNodeForge forge, CodegenMethodScope codegenMethodScope, ExprForgeCodegenSymbol exprSymbol, CodegenClassScope codegenClassScope)
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 Details

ExprInstanceofNodeForgeEval

public ExprInstanceofNodeForgeEval(ExprInstanceofNodeForge forge,
 ExprEvaluator evaluator)

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.

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,
 CodegenMethodScope codegenMethodScope,
 ExprForgeCodegenSymbol exprSymbol,
 CodegenClassScope codegenClassScope)