jspfallback.java

来自「RESIN 3.2 最新源码」· Java 代码 · 共 89 行

/*
 * Copyright (c) 1998-2008 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.jsp.java;

import com.caucho.jsp.JspParseException;
import com.caucho.vfs.WriteStream;

import java.io.IOException;

/**
 * Represents a Java scriptlet.
 */
public class JspFallback extends JspContainerNode {
  /**
   * Adds an attribute.
   */
  public void addAttribute(String name, String value)
    throws JspParseException
  {
    if (name.equals("ook")) {
    }
    else
      throw error(L.l("`{0}' is an invalid attribute in <jsp:fallback>",
                      name));
  }

  /**
   * Generates the XML text representation for the tag validation.
   *
   * @param os write stream to the generated XML.
   */
  public void printXml(WriteStream os)
    throws IOException
  {
    os.print("<jsp:fallback>");
    printXmlChildren(os);
    os.print("</jsp:fallback>");
  }
  
  /**
   * Generates the code for the scriptlet
   *
   * @param out the output writer for the generated java.
   */
  public void generate(JspJavaWriter out)
    throws Exception
  {
    throw error(L.l("jsp:fallback is not allowed as a child of {0}",
		    getParent().getTagName()));
  }
  
  /**
   * Generates the code for the scriptlet
   *
   * @param out the output writer for the generated java.
   */
  public void generateFallback(JspJavaWriter out)
    throws Exception
  {
    generateChildren(out);
  }
}