- Author:
- David Nickerson <nickerso@users.sourceforge.net>
- Date:
- 2009-07-16 02:00:03+12:00
- Desc:
- the starting point for the HH tutorial example
- Permanent Source URI:
- https://models.fieldml.org/workspace/a1/rawfile/f6a8f90307388eb4b040ee3566b84d88b59247f7/dojo-presentation/js/dojo/dojox/collections/Dictionary.js
dojo.provide("dojox.collections.Dictionary");
dojo.require("dojox.collections._base");
dojox.collections.Dictionary=function(/* dojox.collections.Dictionary? */dictionary){
// summary
// Returns an object of type dojox.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 dojox.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 dojox.collections.Dictionary; note the the dictionary is a clone but items might not be.
return new dojox.collections.Dictionary(this); // dojox.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
};
this.entry=function(/* string */k){
// summary
// Accessor method; similar to dojox.collections.Dictionary.item but returns the actual Entry object.
return items[k]; // dojox.collections.DictionaryEntry
};
this.forEach=function(/* function */ fn, /* object? */ scope){
// summary
// functional iterator, following the mozilla spec.
var a=[]; // Create an indexing array
for(var p in items) {
if(!testObject[p]){
a.push(items[p]); // fill it up
}
}
dojo.forEach(a, fn, scope);
};
this.getKeyList=function(){
// summary
// Returns an array of the keys in the dictionary.
return (this.getIterator()).map(function(entry){
return entry.key;
}); // array
};
this.getValueList=function(){
// summary
// Returns an array of the values in the dictionary.
return (this.getIterator()).map(function(entry){
return entry.value;
}); // array
};
this.item=function(/* string */k){
// summary
// Accessor method.
if(k in items){
return items[k].valueOf(); // object
}
return undefined; // object
};
this.getIterator=function(){
// summary
// Gets a dojox.collections.DictionaryIterator for iteration purposes.
return new dojox.collections.DictionaryIterator(items); // dojox.collections.DictionaryIterator
};
this.remove=function(/* string */k){
// summary
// Removes the item at k from the internal collection.
if(k in items && !testObject[k]){
delete items[k];
this.count--;
return true; // bool
}
return false; // bool
};
if (dictionary){
var e=dictionary.getIterator();
while(e.get()) {
this.add(e.element.key, e.element.value);
}
}
};
