Packagemx.data
Classpublic dynamic class ManagedObjectProxy
InheritanceManagedObjectProxy Inheritance ObjectProxy Inheritance Proxy Inheritance Object
Implements IManaged

This class provides the ability to track changes to an item that is anonymous and managed by a DataService. Any number of objects can "listen" for changes on this object, by using the addEventListener() method. This class provides the same level of functionality for anonymous objects managed by a DataService as that given to any class with [Managed] metadata applied to it.


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
 Inheriteduid : String
The unique identifier for this object.
ObjectProxy
Protected Properties
 PropertyDefined By
 Inheriteddispatcher : EventDispatcher
A reference to the EventDispatcher for this proxy.
ObjectProxy
 Inheritednotifiers : Object
A hashmap of property change notifiers that this proxy is listening for changes from; the key of the map is the property name.
ObjectProxy
 InheritedpropertyList : Array
Contains a list of all of the property names for the proxied object.
ObjectProxy
 InheritedproxyClass : Class
Indicates what kind of proxy to create when proxying complex properties.
ObjectProxy
Public Methods
 MethodDefined By
  
ManagedObjectProxy(item:Object = null, uid:String = null)
Intializes this proxy with the specified object and id.
ManagedObjectProxy
 Inherited
addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void
Registers an event listener object so that the listener receives notification of an event.
ObjectProxy
 Inherited
dispatchEvent(event:Event):Boolean
Dispatches an event into the event flow.
ObjectProxy
 Inherited
hasEventListener(type:String):Boolean
Checks whether there are any event listeners registered for a specific type of event.
ObjectProxy
 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
propertyChangeHandler(event:PropertyChangeEvent):void
Called when a complex property is updated.
ObjectProxy
 Inherited
propertyIsEnumerable(name:String):Boolean
Indicates whether the specified property exists and is enumerable.
Object
  
readExternal(input:IDataInput):void
ManagedObjectProxy may need to exclude properties on the wrapped anonymous Object if a DataService destination is defined and lazy associations have been configured.
ManagedObjectProxy
 Inherited
removeEventListener(type:String, listener:Function, useCapture:Boolean = false):void
Removes an event listener.
ObjectProxy
 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
 Inherited
willTrigger(type:String):Boolean
Checks whether an event listener is registered with this object or any of its ancestors for the specified event type.
ObjectProxy
  
writeExternal(output:IDataOutput):void
ManagedObjectProxy checks if properties on the wrapped anonymous Object are lazy associations and if so they are excluded from serialization.
ManagedObjectProxy
Protected Methods
 MethodDefined By
  
getProperty(name:*):*
DataService must save the state of an unmanaged collection before a change to any of the contained items has been modified.
ManagedObjectProxy
  
setProperty(name:*, value:*):void
If the property being set is an ArrayCollection then we need to ensure that any list that this proxy was previously listening for events on should stop.
ManagedObjectProxy
 Inherited
setupPropertyList():void
This method creates an array of all of the property names for the proxied object.
ObjectProxy
Property Detail
destinationproperty
mx_internal var destination:String
referencedIdsproperty 
mx_internal var referencedIds:Object
Constructor Detail
ManagedObjectProxy()Constructor
public function ManagedObjectProxy(item:Object = null, uid:String = null)

Intializes this proxy with the specified object and id.

Parameters
item:Object (default = null) — item Object [optional] to proxy. if no item is specified, an anonymous object will be constructed and assigned.
 
uid:String (default = null) — uid String [optional] containing the unique id for this object instance. Required for IManaged compliance as every object must provide a unique way of identifying it. If no value is specified a random id will be assigned.
Method Detail
getProperty()method
flash_proxy override function getProperty(name:*):*

DataService must save the state of an unmanaged collection before a change to any of the contained items has been modified. To do this we need to listen for PropertyChangeEvents from the list implementation, and redispatch those events so that the DataService can intercept them and make the appropriate snapshot of the collection. We detect an unmanaged collection by looking at the list implementation. Managed collections have a DataList and unmanaged collections use lists that should implement IPropertyChangeNotifier.

Parameters

name:* — name typically a string containing the name of the property or possibly a QName where the property name is found by inspecting the localName property.

Returns
* — the property value or an instance of ObjectProxy
readExternal()method 
public override function readExternal(input:IDataInput):void

ManagedObjectProxy may need to exclude properties on the wrapped anonymous Object if a DataService destination is defined and lazy associations have been configured. This method supports the custom serialization of writeExternal.

Parameters

input:IDataInput

setProperty()method 
flash_proxy override function setProperty(name:*, value:*):void

If the property being set is an ArrayCollection then we need to ensure that any list that this proxy was previously listening for events on should stop.

Parameters

name:* — name Object containing the name of the property that should be updated on the proxied object.
 
value:* — value Value that should be set on the proxied object.

writeExternal()method 
public override function writeExternal(output:IDataOutput):void

ManagedObjectProxy checks if properties on the wrapped anonymous Object are lazy associations and if so they are excluded from serialization.

Parameters

output:IDataOutput




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Sun Sep 23 2007, 10:15 PM GMT-07:00

 

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