| Pacchetto | mx.utils |
| Classe | public dynamic class ObjectProxy |
| Ereditarietà | ObjectProxy  Proxy |
| Implementa | IExternalizable, IPropertyChangeNotifier |
| Sottoclassi | DataItem, ManagedObjectProxy |
| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 3 |
| Versioni runtime: | Flash Player 9, AIR 1.1 |
addEventListener() method.
| Proprietà | Definito da | ||
|---|---|---|---|
| uid : String
The unique identifier for this object. | ObjectProxy | ||
| Proprietà | Definito da | ||
|---|---|---|---|
| dispatcher : EventDispatcher
A reference to the EventDispatcher for this proxy. | ObjectProxy | ||
| notifiers : 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 | ||
| object : Object [sola lettura]
The object being proxied. | ObjectProxy | ||
| propertyList : Array
Contains a list of all of the property names for the proxied object. | ObjectProxy | ||
| proxyClass : Class
Indicates what kind of proxy to create
when proxying complex properties. | ObjectProxy | ||
| type : QName
The qualified type name associated with this object. | ObjectProxy | ||
| Metodo | Definito da | ||
|---|---|---|---|
Initializes this proxy with the specified object, id and proxy depth. | ObjectProxy | ||
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 | ||
Dispatches an event into the event flow. | ObjectProxy | ||
Checks whether there are any event listeners registered
for a specific type of event. | ObjectProxy | ||
Called when a complex property is updated. | ObjectProxy | ||
Since Flex only uses ObjectProxy to wrap anonymous objects,
the server flex.messaging.io.ObjectProxy instance serializes itself
as a Map that will be returned as a plain ActionScript object. | ObjectProxy | ||
Removes an event listener. | ObjectProxy | ||
Checks whether an event listener is registered with this object
or any of its ancestors for the specified event type. | ObjectProxy | ||
Since Flex only serializes the inner ActionScript object that it wraps,
the server flex.messaging.io.ObjectProxy populates itself
with this anonymous object's contents and appears to the user
as a Map. | ObjectProxy | ||
| Metodo | Definito da | ||
|---|---|---|---|
[override]
Returns the value of the proxied object's method with the specified name. | ObjectProxy | ||
[override]
Deletes the specified property on the proxied object and
sends notification of the delete to the handler. | ObjectProxy | ||
Provides a place for subclasses to override how a complex property that
needs to be either proxied or daisy chained for event bubbling is managed. | ObjectProxy | ||
[override]
Returns the specified property value of the proxied object. | ObjectProxy | ||
[override]
Updates the specified property on the proxied object
and sends notification of the update to the handler. | ObjectProxy | ||
This method creates an array of all of the property names for the
proxied object. | ObjectProxy | ||
dispatcher | proprietà |
protected var dispatcher:EventDispatcher| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 3 |
| Versioni runtime: | Flash Player 9, AIR 1.1 |
A reference to the EventDispatcher for this proxy.
notifiers | proprietà |
protected var notifiers:Object| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 3 |
| Versioni runtime: | Flash Player 9, AIR 1.1 |
A hashmap of property change notifiers that this proxy is listening for changes from; the key of the map is the property name.
object | proprietà |
object:Object [sola lettura] | Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 3 |
| Versioni runtime: | Flash Player 9, AIR 1.1 |
The object being proxied.
Implementazione
object_proxy function get object():ObjectpropertyList | proprietà |
protected var propertyList:Array| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 3 |
| Versioni runtime: | Flash Player 9, AIR 1.1 |
Contains a list of all of the property names for the proxied object.
Descendants need to fill this list by overriding the
setupPropertyList() method.
proxyClass | proprietà |
protected var proxyClass:Class| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 3 |
| Versioni runtime: | Flash Player 9, AIR 1.1 |
Indicates what kind of proxy to create when proxying complex properties. Subclasses should assign this value appropriately.
type | proprietà |
type:QName| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 3 |
| Versioni runtime: | Flash Player 9, AIR 1.1 |
The qualified type name associated with this object.
Implementazione
object_proxy function get type():QName object_proxy function set type(value:QName):voiduid | proprietà |
ObjectProxy | () | Funzione di costruzione |
public function ObjectProxy(item:Object = null, uid:String = null, proxyDepth:int = -1)| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 3 |
| Versioni runtime: | Flash Player 9, AIR 1.1 |
Initializes this proxy with the specified object, id and proxy depth.
Parametriitem:Object (default = null) | |
uid:String (default = null) | |
proxyDepth:int (default = -1) |
Esempio
Come utilizzare questo esempio
import mx.events.PropertyChangeEvent;
import mx.utils.ObjectUtil;
import mx.utils.ObjectProxy;
import mx.utils.StringUtil;
var a:Object = { name: "Tyler", age: 5, ssnum: "555-55-5555" };
var p:ObjectProxy = new ObjectProxy(a);
p.addEventListener(PropertyChangeEvent.PROPERTY_CHANGE, updateHandler);
p.name = "Jacey";
p.age = 2;
delete p.ssnum;
// handler function
function updateHandler(event:PropertyChangeEvent):void
{
trace(StringUtil.substitute("updateHandler('{0}', {1}, {2}, {3}, '{4}')",
event.kind,
event.property,
event.oldValue,
event.newValue,
event.target.uid));
}
// trace output
updateHandler('opUpdate', name, Jacey, '698AF8CB-B3D9-21A3-1AFFDGHT89075CD2')
updateHandler('opUpdate', age, 2, '698AF8CB-B3D9-21A3-1AFFDGHT89075CD2')
updateHandler('opDelete', ssnum, null, '698AF8CB-B3D9-21A3-1AFFDGHT89075CD2')
addEventListener | () | metodo |
public function addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 3 |
| Versioni runtime: | Flash Player 9, AIR 1.1 |
Registers an event listener object
so that the listener receives notification of an event.
For more information, including descriptions of the parameters see
addEventListener() in the
flash.events.EventDispatcher class.
Parametri
type:String — The type of event.
| |
listener:Function — The listener function that processes the event. This function must accept
an Event object as its only parameter and must return nothing.
| |
useCapture:Boolean (default = false)useCapture is set to true,
the listener processes the event only during the capture phase and not in the
target or bubbling phase. If useCapture is false, the
listener processes the event only during the target or bubbling phase. To listen for
the event in all three phases, call addEventListener twice, once with
useCapture set to true, then again with
useCapture set to false.
| |
priority:int (default = 0) | |
useWeakReference:Boolean (default = false) |
Elementi API correlati
callProperty | () | metodo |
override flash_proxy function callProperty(name:*, ... rest):*| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 3 |
| Versioni runtime: | Flash Player 9, AIR 1.1 |
Returns the value of the proxied object's method with the specified name.
Parametri
name:* — The name of the method being invoked.
| |
... rest — An array specifying the arguments to the
called method.
|
* — The return value of the called method.
|
deleteProperty | () | metodo |
override flash_proxy function deleteProperty(name:*):Boolean| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 3 |
| Versioni runtime: | Flash Player 9, AIR 1.1 |
Deletes the specified property on the proxied object and sends notification of the delete to the handler.
Parametri
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.
|
Boolean — A Boolean indicating if the property was deleted.
|
dispatchEvent | () | metodo |
public function dispatchEvent(event:Event):Boolean| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 3 |
| Versioni runtime: | Flash Player 9, AIR 1.1 |
Dispatches an event into the event flow. For more information, see the flash.events.EventDispatcher class.
Parametri
event:Event — The Event object that is dispatched into the event flow. If the
event is being redispatched, a clone of the event is created automatically.
After an event is dispatched, its target property cannot be changed, so you
must create a new copy of the event for redispatching to work.
|
Boolean — Returns true if the event was successfully dispatched.
A value
of false indicates failure or that preventDefault()
was called on the event.
|
Elementi API correlati
getComplexProperty | () | metodo |
object_proxy function getComplexProperty(name:*, value:*):*| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 3 |
| Versioni runtime: | Flash Player 9, AIR 1.1 |
Provides a place for subclasses to override how a complex property that needs to be either proxied or daisy chained for event bubbling is managed.
Parametri
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.
| |
value:* — The property value.
|
* — The property value or an instance of ObjectProxy.
|
getProperty | () | metodo |
override flash_proxy function getProperty(name:*):*| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 3 |
| Versioni runtime: | Flash Player 9, AIR 1.1 |
Returns the specified property value of the proxied object.
Parametri
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.
|
* — The value of the property.
In some instances this value may be an instance of
ObjectProxy.
|
hasEventListener | () | metodo |
public function hasEventListener(type:String):Boolean| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 3 |
| Versioni runtime: | Flash Player 9, AIR 1.1 |
Checks whether there are any event listeners registered for a specific type of event. This allows you to determine where an object has altered handling of an event type in the event flow hierarchy. For more information, see the flash.events.EventDispatcher class.
Parametri
type:String — The type of event
|
Boolean — Returns true if a listener of the specified type is
registered; false otherwise.
|
Elementi API correlati
propertyChangeHandler | () | metodo |
public function propertyChangeHandler(event:PropertyChangeEvent):void| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 3 |
| Versioni runtime: | Flash Player 9, AIR 1.1 |
Called when a complex property is updated.
Parametri
event:PropertyChangeEvent — An event object that has changed.
|
readExternal | () | metodo |
public function readExternal(input:IDataInput):void| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 3 |
| Versioni runtime: | Flash Player 9, AIR 1.1 |
Since Flex only uses ObjectProxy to wrap anonymous objects, the server flex.messaging.io.ObjectProxy instance serializes itself as a Map that will be returned as a plain ActionScript object. You can then set the object_proxy object property to this value.
Parametri
input:IDataInput — The source object from which the ObjectProxy is
deserialized.
|
removeEventListener | () | metodo |
public function removeEventListener(type:String, listener:Function, useCapture:Boolean = false):void| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 3 |
| Versioni runtime: | Flash Player 9, AIR 1.1 |
Removes an event listener. If there is no matching listener registered with the EventDispatcher object, a call to this method has no effect. For more information, see the flash.events.EventDispatcher class.
Parametri
type:String — The type of event.
| |
listener:Function — The listener object to remove.
| |
useCapture:Boolean (default = false)removeEventListener() are required to remove both, one call with
useCapture
set to true, and another call with useCapture
set to false.
|
Elementi API correlati
setProperty | () | metodo |
override flash_proxy function setProperty(name:*, value:*):void| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 3 |
| Versioni runtime: | Flash Player 9, AIR 1.1 |
Updates the specified property on the proxied object and sends notification of the update to the handler.
Parametri
name:* — Object containing the name of the property that
should be updated on the proxied object.
| |
value:* — Value that should be set on the proxied object.
|
setupPropertyList | () | metodo |
protected function setupPropertyList():void| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 3 |
| Versioni runtime: | Flash Player 9, AIR 1.1 |
This method creates an array of all of the property names for the
proxied object.
Descendants must override this method if they wish to add more
properties to this list.
Be sure to call super.setupPropertyList before making any
changes to the propertyList property.
willTrigger | () | metodo |
public function willTrigger(type:String):Boolean| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 3 |
| Versioni runtime: | Flash Player 9, AIR 1.1 |
Checks whether an event listener is registered with this object
or any of its ancestors for the specified event type.
This method returns true if an event listener is triggered
during any phase of the event flow when an event of the specified
type is dispatched to this object or any of its descendants.
For more information, see the flash.events.EventDispatcher class.
Parametri
type:String — The type of event.
|
Boolean — Returns true if a listener of the specified type will
be triggered; false otherwise.
|
Elementi API correlati
writeExternal | () | metodo |
public function writeExternal(output:IDataOutput):void| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 3 |
| Versioni runtime: | Flash Player 9, AIR 1.1 |
Since Flex only serializes the inner ActionScript object that it wraps, the server flex.messaging.io.ObjectProxy populates itself with this anonymous object's contents and appears to the user as a Map.
Parametri
output:IDataOutput — The source object from which the ObjectProxy is
deserialized.
|
Tue Jun 12 2018, 02:44 PM Z