root/as3/Utils/src/org/libspark/utils/DictionaryUtil.as

/*
 * Copyright(c) 2006-2007 the Spark project.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, 
 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */

package org.libspark.utils
{
        import flash.utils.Dictionary;
        
        /**
         * Dictionary クラスのためのユーティリティクラスです
         */
        public class DictionaryUtil
        {
                
                /**
                 * 
                 * @param       d
                 * @param       value
                 * @return
                 * @author  michi at seyself.com
                 */
                public static function getKey(d:Dictionary, value:*):*
                {
                        for (var key:Object in d)
                                if (d[key] == value) return key;
                        return null;
                }
                
                /**
                 * 
                 * @param       d
                 * @return
                 * @author  michi at seyself.com
                 */
                public static function getKeys(d:Dictionary):Array
                {
                        var a:Array = new Array();
                        for (var key:Object in d) a.push(key);
                        return a;
                }
                
                /**
                 * 
                 * @param       d
                 * @return
                 * @author  michi at seyself.com
                 */
                public static function getValues(d:Dictionary):Array
                {
                        var a:Array = new Array();
                        for each (var value:Object in d) a.push(value);
                        return a;
                }
                
                /**
                 * 
                 * @param       d
                 * @param       keys
                 * @return
                 * @author  michi at seyself.com
                 */
                public static function getValuesOfKeys(d:Dictionary, keys:Array):Array
                {
                        var a:Array = new Array();
                        var n:uint = keys.length;
                        for (var i:uint = 0; i < n; i++) a.push(d[keys[i]]);
                        return a;
                }
                
                /**
                 * 
                 * @param       d
                 * @return
                 * @author  michi at seyself.com
                 */
                public static function length(d:Dictionary):uint
                {
                        var a:Array = new Array();
                        for (var key:Object in d) a.push(key);
                        return a.length;
                }
                
                
        }
}