flymis/WebRoot/dojojs/src/collections/Dictionary.js

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/*
	Copyright (c) 2004-2006, The Dojo Foundation
	All Rights Reserved.

	Licensed under the Academic Free License version 2.1 or above OR the
	modified BSD license. For more information on Dojo licensing, see:

		http://dojotoolkit.org/community/licensing.shtml
*/

dojo.provide("dojo.collections.Dictionary");
dojo.require("dojo.collections.Collections");

dojo.collections.Dictionary=function(/* dojo.collections.Dictionary? */dictionary){
	//	summary
	//	Returns an object of type dojo.collections.Dictionary
	var items={};
	this.count=0;

	//	comparator for property addition and access.
	var testObject={};

	this.add=function(/* string */k, /* object */v){
		//	summary
		//	Add a new item to the Dictionary.
		var b=(k in items);
		items[k]=new dojo.collections.DictionaryEntry(k,v);
		if(!b){
			this.count++;
		}
	};
	this.clear=function(){
		//	summary
		//	Clears the internal dictionary.
		items={};
		this.count=0;
	};
	this.clone=function(){
		//	summary
		//	Returns a new instance of dojo.collections.Dictionary; note the the dictionary is a clone but items might not be.
		return new dojo.collections.Dictionary(this);	//	dojo.collections.Dictionary
	};
	this.contains=this.containsKey=function(/* string */k){
		//	summary
		//	Check to see if the dictionary has an entry at key "k".
		if(testObject[k]){
			return false;			// bool
		}
		return (items[k]!=null);	//	bool
	};
	this.containsValue=function(/* object */v){
		//	summary
		//	Check to see if the dictionary has an entry with value "v".
		var e=this.getIterator();
		while(e.get()){
			if(e.element.value==v){
				return true;	//	bool
			}
		}
		return false;	//	bool