/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
* Free SoftwareFoundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.relaxng.pattern;
import com.caucho.relaxng.RelaxException;
import com.caucho.relaxng.program.Item;
import com.caucho.relaxng.program.ZeroOrMoreItem;
/**
* Relax one or more pattern
*/
public class ZeroOrMorePattern extends Pattern {
private GroupPattern _patterns = new GroupPattern();
/**
* Creates a new zero-or-more pattern.
*/
public ZeroOrMorePattern()
{
}
/**
* Creates a new zero-or-more pattern.
*/
public ZeroOrMorePattern(Pattern pattern)
throws RelaxException
{
_patterns.addChild(pattern);
}
/**
* Returns the Relax schema name.
*/
public String getTagName()
{
return "zeroOrMore";
}
/**
* Adds an element.
*/
public void addChild(Pattern child)
throws RelaxException
{
_patterns.addChild(child);
}
/**
* returns the group.
*/
public Pattern getPatterns()
{
return _patterns;
}
/**
* Creates the production item.
*/
public Item createItem(GrammarPattern grammar)
throws RelaxException
{
return new ZeroOrMoreItem(_patterns.createItem(grammar));
}
/**
* Returns a string for the production.
*/
public String toProduction()
{
return "(" + _patterns.toProduction() + ")*";
}
public int hashCode()
{
return 91 + _patterns.hashCode();
}
public boolean equals(Object o)
{
if (this == o)
return true;
if (! (o instanceof ZeroOrMorePattern))
return false;
ZeroOrMorePattern pattern = (ZeroOrMorePattern) o;
return _patterns.equals(pattern._patterns);
}
/**
* Debugging.
*/
public String toString()
{
return "ZeroOrMorePattern" + _patterns;
}
}