// $Id: CriticOclEvaluator.java 41 2010-04-03 20:04:12Z marcusvnac $
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// software and its documentation without fee, and without a written
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package org.argouml.ocl;
import org.tigris.gef.ocl.ExpansionException;
/**
* CriticOclEvaluator is singleton version of OCLEvaluator which is used for
* evaluating simple OCL expressions used in the critiques.<p>
*
* Implementation History: As best I was able to reconstruct the history in
* early 2007, OclEvaluator was originally implemented as a singleton, but that
* was changed in September, 2004 because of some perceived problems, but then
* it was discovered that the Critic subsystem depended on the singleton
* pattern, so an earlier version of OclEvaluator was reintroduced with a new
* name. Because of the large amount of duplicate code between the two classes,
* this was refactored in March, 2007 to use an instance of the main
* OclEvaluator class.
*
* @stereotype singleton
* @deprecated for 0.25.2 by tfmorris - use {@link OCLEvaluator}
*/
@Deprecated
public class CriticOclEvaluator {
private static final CriticOclEvaluator INSTANCE =
new CriticOclEvaluator();
private static final OCLEvaluator EVALUATOR =
new OCLEvaluator();
private CriticOclEvaluator() {
// no instantiations
}
/**
* @return the singleton of CriticOclEvaluator
*/
public static final CriticOclEvaluator getInstance() {
return INSTANCE;
}
/*
* @see OCLEvaluator#evalToString(java.lang.Object, java.lang.String)
*/
public synchronized String evalToString(Object self, String expr)
throws ExpansionException {
return EVALUATOR.evalToString(self, expr);
}
/*
* @see OCLEvaluator#evalToString(java.lang.Object, java.lang.String, java.lang.String)
*/
public synchronized String evalToString(
Object self,
String expr,
String sep)
throws ExpansionException {
return EVALUATOR.evalToString(self, expr, sep);
}
}