    001// Copyright 2006, 2009, 2011 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.tapestry5.internal.parser;
    016
    017import org.apache.tapestry5.MarkupWriter;
    018import org.apache.tapestry5.commons.Location;
    019import org.apache.tapestry5.runtime.RenderCommand;
    020import org.apache.tapestry5.runtime.RenderQueue;
    021
    022/**
    023 * The start of an ordinary element within the template (as opposed to {@link org.apache.tapestry5.internal.parser.StartComponentToken},
    024 * which represents an active Tapestry token. A start element token may be immediately followed by {@link
    025 * org.apache.tapestry5.internal.parser.AttributeToken}s that represents the attributes associated with the element. A
    026 * start element token will always be balanced by a {@link org.apache.tapestry5.internal.parser.EndElementToken} (though
    027 * there will likely be some amount of intermediate tokens).
    028 */
    029public class StartElementToken extends TemplateToken implements RenderCommand
    030{
    031    public final String namespaceURI;
    032
    033    public final String name;
    034
    035    public StartElementToken(String namespaceURI, String name, Location location)
    036    {
    037        super(TokenType.START_ELEMENT, location);
    038
    039        this.namespaceURI = namespaceURI;
    040        this.name = name;
    041    }
    042
    043    @Override
    044    public String toString()
    045    {
    046        StringBuilder builder = new StringBuilder("Start[");
    047
    048        if (namespaceURI != null && namespaceURI.length() > 0) builder.append(namespaceURI).append(' ');
    049
    050        builder.append(name).append(']');
    051
    052        return builder.toString();
    053    }
    054
    055    public void render(MarkupWriter writer, RenderQueue queue)
    056    {
    057        writer.elementNS(namespaceURI, name);
    058    }
    059}