com.espertech.esper.epl.expression.ops

Class ExprRegexpNodeForgeNonconstEval

java.lang.Object

com.espertech.esper.epl.expression.ops.ExprRegexpNodeForgeNonconstEval

All Implemented Interfaces:

ExprEvaluator

public class ExprRegexpNodeForgeNonconstEval
extends java.lang.Object
implements ExprEvaluator

Constructor Summary

Constructors

Constructor and Description
ExprRegexpNodeForgeNonconstEval(ExprRegexpNodeForgeNonconst forge, ExprEvaluator lhsEval, ExprEvaluator patternEval)

Method Summary

Modifier and Type	Method and Description
static CodegenMethodNode	codegen(ExprRegexpNodeForgeNonconst forge, ExprNode lhs, ExprNode pattern, CodegenMethodScope codegenMethodScope, ExprForgeCodegenSymbol exprSymbol, CodegenClassScope codegenClassScope)
java.lang.Object	evaluate(EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext context) Evaluate event tuple and return result.
static java.util.regex.Pattern	exprRegexNodeCompilePattern(java.lang.String text) 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

ExprRegexpNodeForgeNonconstEval

public ExprRegexpNodeForgeNonconstEval(ExprRegexpNodeForgeNonconst forge,
                                       ExprEvaluator lhsEval,
                                       ExprEvaluator patternEval)

Method Detail

exprRegexNodeCompilePattern

public static java.util.regex.Pattern exprRegexNodeCompilePattern(java.lang.String text)

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

Parameters:

text - regex pattern

Returns:

pattern

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.

codegen

public static CodegenMethodNode codegen(ExprRegexpNodeForgeNonconst forge,
                                        ExprNode lhs,
                                        ExprNode pattern,
                                        CodegenMethodScope codegenMethodScope,
                                        ExprForgeCodegenSymbol exprSymbol,
                                        CodegenClassScope codegenClassScope)