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A PHP engine implemented in 100% Java

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/*
 * Copyright (c) 1998-2012 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 Software Foundation, Inc.
 *   59 Temple Place, Suite 330
 *   Boston, MA 02111-1307  USA
 *
 * @author Alex Rojkov
 */

package com.caucho.el;

import javax.el.VariableMapper;
import javax.el.ValueExpression;
import java.io.Serializable;
import java.util.Map;
import java.util.HashMap;

/**
 * Base impl class needed for tck. Fits poorly in our performance oriented
 * hierarchy. So, it basically only satisfies el tck
 */
public class VariableMapperImpl extends VariableMapper implements Serializable {
  private Map _map = new HashMap();

  @Override
  public ValueExpression resolveVariable(String variable)
  {
    return _map.get(variable);
  }

  @Override
  public ValueExpression setVariable(String variable,
                                     ValueExpression expr)
  {
    return _map.put(variable, expr);
  }
}