primitiveset.java

来自「tinyos最新版」· Java 代码 · 共 64 行

/*									tab:4
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 * All rights reserved.
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 * two paragraphs and the author appear in all copies of this software.
 * 
 * IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
 * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF
 * CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * 
 * THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
 * AND FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
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 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS."
 *
 * Copyright (c) 2002-2003 Intel Corporation
 * All rights reserved.
 *
 * This file is distributed under the terms in the attached INTEL-LICENSE     
 * file. If you do not find these files, copies can be found by writing to
 * Intel Research Berkeley, 2150 Shattuck Avenue, Suite 1300, Berkeley, CA, 
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package net.tinyos.script.tree;

import java.util.*;

public class PrimitiveSet {
    static private Hashtable table;

    static {
	table = new Hashtable();
    }

    public static void addPrimitive(Primitive p) {
      String name = (String)p.get("name");
      table.put(name.toLowerCase(), p);
    }


    public static boolean primtiveExists(String name) {
      return table.containsKey(name.toLowerCase());
    }

    public static Enumeration primitiveNames() {
	return table.keys();
    }
    
    public static Primitive getPrimitive(String name) {
	if (primtiveExists(name)) {
	  return (Primitive)table.get(name.toLowerCase());
	}
	else {
	    return null;
	}
    }

}