FunctionMap.java example

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resin-master
/*
 * Copyright (c) 1998-2011 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 Nam Nguyen
 */
 
package com.caucho.quercus.env;

import java.util.HashMap;
import java.util.Set;
import java.util.Map.Entry;

/**
 * Handles Java function overloading.
 */
public class FunctionMap
{
  private HashMap<String,AbstractJavaMethod> _funMap;
  
  public FunctionMap()
  {
    _funMap = new HashMap<String,AbstractJavaMethod>();
  }
  
  public AbstractJavaMethod getFunction(String name)
  {
    return _funMap.get(name);
  }
  
  public void addFunction(String name, AbstractJavaMethod fun)
  {
    AbstractJavaMethod oldFun = _funMap.get(name);

    if (oldFun == null)
      _funMap.put(name, fun);
    else
      _funMap.put(name, oldFun.overload(fun));
  }
  
  public Set<Entry<String,AbstractJavaMethod>> entrySet()
  {
    return _funMap.entrySet();
  }
  
  public Set<String> keySet()
  {
    return _funMap.keySet();
  }
}