Adobe Flex 2 Language Reference - collected by Jimbob | Back to MY RESOURCES


Packagemx.utils
Classpublic class UIDUtil
InheritanceUIDUtil Inheritance Object

The UIDUtil class is an all-static class with methods for working with UIDs (unique identifiers) within Flex. You do not create instances of UIDUtil; instead you simply call static methods such as the UIDUtil.createUID() method.

Note: I you have a dynamic object that has no [Bindable] properties (which force the object to implement the IUID interface), Flex adds an mx_internal_uid property that contains a UID to the object. To avoid having this field in your dynamic object, make it [Bindable], implement the IUID interface in the object class, or set a uid property with a value.


Public Properties
 PropertyDefined by
 Inheritedconstructor : Object
A reference to the class object or constructor function for a given object instance.
Object
 Inheritedprototype : Object
[static] A reference to the prototype object of a class or function object.
Object
Public Methods
 MethodDefined by
  
createUID():String
[static] Generates a UID (unique identifier) based on ActionScript's pseudo-random number generator and the current time.
UIDUtil
  
getUID(item:Object):String
[static] Returns the UID (unique identifier) for the specified object.
UIDUtil
 Inherited
setPropertyIsEnumerable(name:String, isEnum:Boolean = true):void
Sets the availability of a dynamic property for loop operations.
Object
 Inherited
toString():String
Returns the string representation of the specified object.
Object
 Inherited
valueOf():Object
Returns the primitive value of the specified object.
Object
Method detail
createUID()method
public static function createUID():String

Generates a UID (unique identifier) based on ActionScript's pseudo-random number generator and the current time.

The UID has the form "XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX" where X is a hexadecimal digit (0-9, A-F).

This UID will not be truly globally unique; but it is the best we can do without player support for UID generation.

Returns
String — The newly-generated UID.
getUID()method 
public static function getUID(item:Object):String

Returns the UID (unique identifier) for the specified object. If the specified object doesn't have an UID then the method assings one to it. If a map is specified this method will use the map to construct the UID. As a special case, if the item passed in is null, this method returns a null UID.

Parameters
item:Object — Object that we need to find the UID for.

Returns
String — The UID that was either found or generated.



© 2004-2006 Adobe Systems Incorporated. All rights reserved.
Fri Mar 16 2007, 2:46 PM GMT-07:00
collected by Jimbob 2007.05