套件 | mx.data |
類別 | public dynamic class ItemReference |
繼承 | ItemReference ![]() ![]() ![]() |
實作 | IItemReference |
語言版本: | ActionScript 3.0 |
產品版本: | Adobe Digital Enterprise Platform Data Services for Java EE 3 |
執行階段版本: | Flash Player 9, AIR 1.1 |
DataService.getItem()
and DataService.createItem()
methods to provide a way to manage a reference to the remote object.
The AsyncToken implementation that this class extends provides a list of
responders to be notified of result and fault events that occur on the
operation to retrieve the item (the get or the create).
A binding can be made to the value of the result
property
that always maintains a reference to the managed instance.
If the item is deleted in another client, the result
property
will be set to null.
If a fault occurs and the DatService instance cannot retrieve the item,
the invalid
property is set to true
.
Listen for the fault event to get more information about what caused
the error.
To release the reference to this managed item, call the
ItemReference.releaseItem()
method.
This is similar to calling the DataService.releaseItem()
method
however, unlike the DataService.releaseItem()
this method
releases this reference rather than the first item instance found of that
type.
This occurs when more than one getItem()
method call to retrieve
the same item from different parts of an application is made.
公用屬性
屬性 | 定義自 | ||
---|---|---|---|
![]() | constructor : Object
類別物件的參照或是特定物件實體的建構函數。 | Object | |
![]() | message : IMessage [唯讀]
Provides access to the associated message. | AsyncToken | |
![]() | responders : Array [唯讀]
An array of IResponder handlers that will be called when
the asynchronous request completes. | AsyncToken | |
![]() | result : Object [唯讀]
The result that was returned by the associated RPC call. | AsyncToken |
公用方法
方法 | 定義自 | ||
---|---|---|---|
![]() | addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void
會在 EventDispatcher 物件註冊事件偵聽程式,以便讓偵聽程式收到事件的通知。 | EventDispatcher | |
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Adds a responder to an Array of responders. | AsyncToken | |
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會將事件傳送到事件流程。 | EventDispatcher | |
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會檢查 EventDispatcher 物件是否有對特定的事件類型註冊偵聽程式。 | EventDispatcher | |
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指出物件是否有已定義的指定屬性。 | Object | |
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Determines if this token has at least one mx.rpc.IResponder registered. | AsyncToken | |
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指出 Object 類別的實體是否位於指定為參數的物件原型鏈中。 | Object | |
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指出指定的屬性是否存在,以及是否可列舉。 | Object | |
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會從 EventDispatcher 物件移除偵聽程式。 | EventDispatcher | |
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為迴圈作業設定動態屬性的可用性。 | Object | |
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傳回代表此物件的字串,根據地區特定慣例進行格式化。 | Object | |
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會傳回指定之物件的字串形式。 | Object | |
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會傳回指定之物件的基本值。 | Object | |
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檢查此 EventDispatcher 物件是否已註冊事件偵聽程式,或者此物件的任何祖系已為特定事件類型註冊事件偵聽程式。 | EventDispatcher |
Tue Jun 12 2018, 03:47 PM Z