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 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 String	codegen(ExprRegexpNodeForgeNonconst forge, ExprNode lhs, ExprNode pattern, CodegenContext context, CodegenParamSetExprPremade params)
Object	evaluate(EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext context) Evaluate event tuple and return result.
static Pattern	exprRegexNodeCompilePattern(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 Pattern exprRegexNodeCompilePattern(String text)

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

Parameters:

text - regex pattern

Returns:

pattern

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.

codegen

public static String codegen(ExprRegexpNodeForgeNonconst forge,
                             ExprNode lhs,
                             ExprNode pattern,
                             CodegenContext context,
                             CodegenParamSetExprPremade params)