ActionScript® 3.0 Reference for the Adobe® Flash® Platform
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mx.core 

DeferredInstanceFromFunction  - AS3 Flex
Packagemx.core
Classpublic class DeferredInstanceFromFunction
InheritanceDeferredInstanceFromFunction Inheritance Object
Implements ITransientDeferredInstance

Language Version: ActionScript 3.0
Product Version: Flex 3
Runtime Versions: Flash Player 9, AIR 1.1

A deferred instance factory that uses a generator function to create an instance of the required object. An application uses the getInstance() method to create an instance of an object when it is first needed and get a reference to the object thereafter.

Related API Elements

DeferredInstanceFromClass

Public Properties
 PropertyDefined By
 Inheritedconstructor : Object
A reference to the class object or constructor function for a given object instance.
Object
Public Methods
 MethodDefined By
  
DeferredInstanceFromFunction(generator:Function, destructor:Function = null)
Constructor.
DeferredInstanceFromFunction
  
getInstance():Object
Returns a reference to an instance of the desired object.
DeferredInstanceFromFunction
 Inherited
hasOwnProperty(name:String):Boolean
Indicates whether an object has a specified property defined.
Object
 Inherited
isPrototypeOf(theClass:Object):Boolean
Indicates whether an instance of the Object class is in the prototype chain of the object specified as the parameter.
Object
 Inherited
propertyIsEnumerable(name:String):Boolean
Indicates whether the specified property exists and is enumerable.
Object
  
reset():void
Resets the state of our factory to the initial, uninitialized state.
DeferredInstanceFromFunction
 Inherited
setPropertyIsEnumerable(name:String, isEnum:Boolean = true):void
Sets the availability of a dynamic property for loop operations.
Object
 Inherited
toLocaleString():String
Returns the string representation of this object, formatted according to locale-specific conventions.
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
Constructor Detail

DeferredInstanceFromFunction

()Constructor
public function DeferredInstanceFromFunction(generator:Function, destructor:Function = null)

Language Version: ActionScript 3.0
Product Version: Flex 3
Runtime Versions: Flash Player 9, AIR 1.1

Constructor.

Parameters
generator:Function — A function that creates and returns an instance of the required object.
 
destructor:Function (default = null) — An optional function used to cleanup outstanding references when reset() is called.
Method Detail

getInstance

()method
public function getInstance():Object

Language Version: ActionScript 3.0
Product Version: Flex 3
Runtime Versions: Flash Player 9, AIR 1.1

Returns a reference to an instance of the desired object. If no instance of the required object exists, calls the function specified in this class' generator constructor parameter.

Returns
Object — An instance of the object.

reset

()method 
public function reset():void

Language Version: ActionScript 3.0
Product Version: Flex 4
Runtime Versions: Flash Player 9, AIR 1.1

Resets the state of our factory to the initial, uninitialized state. The reference to our cached instance is cleared.




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