    001// Copyright 2007, 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 * A token from a template that defines a namespace prefix. This will always follow a {@link
    024 * org.apache.tapestry5.internal.parser.StartComponentToken} or {@link org.apache.tapestry5.internal.parser.StartElementToken}
    025 * (and come before {@link org.apache.tapestry5.internal.parser.AttributeToken}) and applies to the component or
    026 * element.
    027 *
    028 * @see org.apache.tapestry5.dom.Element#defineNamespace(String, String)
    029 */
    030public class DefineNamespacePrefixToken extends TemplateToken implements RenderCommand
    031{
    032    public final String namespaceURI;
    033
    034    public final String namespacePrefix;
    035
    036    public DefineNamespacePrefixToken(String namespaceURI, String namespacePrefix, Location location)
    037    {
    038        super(TokenType.DEFINE_NAMESPACE_PREFIX, location);
    039
    040        this.namespacePrefix = namespacePrefix;
    041        this.namespaceURI = namespaceURI;
    042    }
    043
    044    @Override
    045    public String toString()
    046    {
    047        return String.format("DefineNamespacePrefix[%s=%s]", namespacePrefix, namespaceURI);
    048    }
    049
    050    public void render(MarkupWriter writer, RenderQueue queue)
    051    {
    052        writer.defineNamespace(namespaceURI, namespacePrefix);
    053    }
    054
    055}