/**************************************************************************************
* Copyright (C) 2008 EsperTech, Inc. All rights reserved. *
* http://esper.codehaus.org *
* http://www.espertech.com *
* ---------------------------------------------------------------------------------- *
* The software in this package is published under the terms of the GPL license *
* a copy of which has been included with this distribution in the license.txt file. *
**************************************************************************************/
package com.espertech.esper.type;
import java.util.regex.Pattern;
import java.io.Serializable;
/**
* Regular expression matcher.
*/
public class StringPatternSetRegex implements StringPatternSet
{
private final String patternText;
private final Pattern pattern;
private static final long serialVersionUID = -506839196395937712L;
/**
* Ctor.
* @param patternText regex to match
*/
public StringPatternSetRegex(String patternText)
{
this.patternText = patternText;
this.pattern = Pattern.compile(patternText);
}
/**
* Match the string returning true for a match, using regular expression semantics.
* @param stringToMatch string to match
* @return true for match
*/
public boolean match(String stringToMatch)
{
return pattern.matcher(stringToMatch).matches();
}
public boolean equals(Object o)
{
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
StringPatternSetRegex that = (StringPatternSetRegex) o;
if (!patternText.equals(that.patternText)) return false;
return true;
}
public int hashCode()
{
return patternText.hashCode();
}
}