jspelparser.java

来自「RESIN 3.2 最新源码」· Java 代码 · 共 82 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.el;

import com.caucho.el.ELParser;
import com.caucho.el.Expr;

import javax.el.ELContext;

/**
 * Parses the expression.
 */
public class JspELParser extends ELParser {
  /**
   * Creates a new JspELParser
   */
  public JspELParser(ELContext env, String string)
  {
    super(env, string);
  }

  protected ELParser create(String string)
  {
    ELParser parser = new JspELParser(_elContext, string);

    copyTo(parser);

    return parser;
  }

  /**
   * Creates the implicit object for the name.
   */
  protected Expr createImplicitObjectExpr(String name)
  {
    /*
    if (name.equals("pageContext") ||
        name.equals("applicationScope") ||
        name.equals("sessionScope") ||
        name.equals("requestScope") ||
        name.equals("pageScope") ||
        name.equals("param") ||
        name.equals("paramValues") ||
        name.equals("header") ||
        name.equals("headerValues") ||
        name.equals("cookie") ||
        name.equals("initParam"))
      return new ImplicitObjectExpr(name);
    else
      return null;
    */
    
    return null;
  }
}