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org.apache.taglibs.rdc.scxml.env
Class ELEvaluator  

java.lang.Object
  org.apache.taglibs.rdc.scxml.env.ELEvaluator

All Implemented Interfaces:

org.apache.taglibs.rdc.scxml.Evaluator

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public class ELEvaluator

extends java.lang.Object

implements org.apache.taglibs.rdc.scxml.Evaluator

EL engine interface for SCXML Interpreter.

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Nested Class Summary
(package private)  class	ELEvaluator.CtxWrapper           A Context wrapper that implements VariableResolver
(package private)  class	ELEvaluator.FunctWrapper           A simple function mapper for SCXML defined functions

 

Field Summary
(package private)  javax.servlet.jsp.el.ExpressionEvaluator	ee
private  javax.servlet.jsp.el.FunctionMapper	fm
private static java.util.regex.Pattern	inFct
private static org.apache.commons.logging.Log	log

 

Constructor Summary

ELEvaluator()           Constructor

 

Method Summary
java.lang.Object	eval(org.apache.taglibs.rdc.scxml.Context ctx, java.lang.String expr)           Evaluate an expression
java.lang.Boolean	evalCond(org.apache.taglibs.rdc.scxml.Context ctx, java.lang.String expr)           Evaluate a condition.
static boolean	isMember(java.util.Set allStates, java.lang.String state)           Does this state belong to the Set of these States.
org.apache.taglibs.rdc.scxml.Context	newContext(org.apache.taglibs.rdc.scxml.Context parent)           Create a new child context.

 

Methods inherited from class java.lang.Object

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

 

Field Detail

log

private static org.apache.commons.logging.Log log

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fm

private javax.servlet.jsp.el.FunctionMapper fm

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inFct

private static java.util.regex.Pattern inFct

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ee

javax.servlet.jsp.el.ExpressionEvaluator ee

Constructor Detail

ELEvaluator

public ELEvaluator()

Constructor

Method Detail

eval

public java.lang.Object eval(org.apache.taglibs.rdc.scxml.Context ctx,
                             java.lang.String expr)
                      throws org.apache.taglibs.rdc.scxml.SCXMLExpressionException

Evaluate an expression

Specified by:

eval in interface org.apache.taglibs.rdc.scxml.Evaluator

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newContext

public org.apache.taglibs.rdc.scxml.Context newContext(org.apache.taglibs.rdc.scxml.Context parent)

Create a new child context.

Specified by:

newContext in interface org.apache.taglibs.rdc.scxml.Evaluator

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evalCond

public java.lang.Boolean evalCond(org.apache.taglibs.rdc.scxml.Context ctx,
                                  java.lang.String expr)
                           throws org.apache.taglibs.rdc.scxml.SCXMLExpressionException

Description copied from interface: org.apache.taglibs.rdc.scxml.Evaluator

Evaluate a condition.

Specified by:

evalCond in interface org.apache.taglibs.rdc.scxml.Evaluator

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isMember

public static final boolean isMember(java.util.Set allStates,
                                     java.lang.String state)

Does this state belong to the Set of these States. Simple ID based comparator

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