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The core XML data binding framework with support for marshalling Java objects to
and unmarshalling from XML documents.
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/*
* Copyright 2010 Werner Guttmann
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
* in compliance with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under the License
* is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
* or implied. See the License for the specific language governing permissions and limitations under
* the License.
*/
package org.exolab.castor.util;
import java.util.regex.Pattern;
import java.util.regex.PatternSyntaxException;
/**
* An implementation of {@link RegExpEvaluator} that uses the Java Regular Expression library.
*
* @author George Varghese
* @since 1.3.2
**/
public class SunRegExpEvaluator implements RegExpEvaluator {
/**
* The Regular expression
**/
private Pattern _pattern;
/**
* Sets the regular expression to match against during a call to #matches
*
* @param rexpr the regular expression
**/
public void setExpression(String rexpr) {
if (rexpr != null) {
try {
// -- patch and compile expression
_pattern = Pattern.compile(rexpr);
} catch (PatternSyntaxException ex) {
String err = "RegExp Syntax error: ";
err += ex.getMessage();
err += " ; error occured with the following " + "regular expression: " + rexpr;
throw new IllegalArgumentException(err, ex);
}
}
}
/**
* Returns true if the given String is matched by the regular expression of this RegExpEvaluator
*
* @param value the String to check the production of
* @return true if the given string matches the regular expression of this RegExpEvaluator
* @see #setExpression
**/
public boolean matches(String value) {
if (_pattern != null) {
return _pattern.matcher(value).matches();
}
return true;
}
}