001// Copyright 2004, 2005 The Apache Software Foundation
002//
003// Licensed under the Apache License, Version 2.0 (the "License");
004// you may not use this file except in compliance with the License.
005// You may obtain a copy of the License at
006//
007//     http://www.apache.org/licenses/LICENSE-2.0
008//
009// Unless required by applicable law or agreed to in writing, software
010// distributed under the License is distributed on an "AS IS" BASIS,
011// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012// See the License for the specific language governing permissions and
013// limitations under the License.
014
015package org.apache.tapestry.script;
016
017import org.apache.tapestry.util.xml.RuleDirectedParser;
018import org.xml.sax.Attributes;
019
020/**
021 * Constructs a {@link org.apache.tapestry.script.UniqueToken}
022 * from an <unique> element, which contains full content.
023 *
024 * @author Howard Lewis Ship
025 * @since 3.0
026 */
027
028public class UniqueRule extends AbstractTokenRule
029{
030
031    public void endElement(RuleDirectedParser parser)
032    {
033        parser.pop();
034    }
035
036    public void startElement(RuleDirectedParser parser, Attributes attributes)
037    {
038        IScriptToken token = new UniqueToken(parser.getLocation());
039
040        addToParent(parser, token);
041        parser.push(token);
042    }
043
044}