IItemReference - Adobe ActionScript® 3 (AS3 ADEP Data Services) API 參考

套件	mx.data
介面	public interface IItemReference extends IEventDispatcher
實作者	ItemReference

語言版本:

ActionScript 3.0

產品版本:

Adobe Digital Enterprise Platform Data Services for Java EE 4.5

執行階段版本:

Flash Player 10.1, AIR 2.0

The IItemReference interface provides the contract for a ItemReference. An instance of ItemReference is returned from the DataService.getItem() and DataService.createItem() methods to provide a way to manage a reference to the remote object.

公用屬性

	屬性		定義自
		valid : Boolean Set to false if the ItemReference becomes invalid either because the server faulted when trying to retrieve the item or if the retrieved item was itself null.	IItemReference

公用方法

隱藏繼承公用方法

顯示繼承公用方法

	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。	IEventDispatcher
		dispatchEvent(event:Event):Boolean 會將事件傳送到事件流程。	IEventDispatcher
		hasEventListener(type:String):Boolean 會檢查 EventDispatcher 物件是否有對特定的事件類型註冊偵聽程式。	IEventDispatcher
		releaseItem(copyStillManagedItems:Boolean = true, enableStillManagedCheck:Boolean = true):void Releases the managed item reference retrieved with the getItem() or createItem() method call that returned this ItemReference.	IItemReference
		removeEventListener(type:String, listener:Function, useCapture:Boolean = false):void 會從 EventDispatcher 物件移除偵聽程式。	IEventDispatcher
		willTrigger(type:String):Boolean 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。	IEventDispatcher

屬性詳細資訊

valid

屬性

valid:Boolean

語言版本:

ActionScript 3.0

產品版本:

Adobe Digital Enterprise Platform Data Services for Java EE 4.5

執行階段版本:

Flash Player 10.1, AIR 2.0

Set to false if the ItemReference becomes invalid either because the server faulted when trying to retrieve the item or if the retrieved item was itself null. This property can be used to bind to your user interface controls to display status information for this item without having to listen for explicit fault events.

此屬性可以做為資料繫結的來源。一旦修改此屬性，將傳送 propertyChange 事件。

實作
public function get valid():Boolean
public function set valid(value:Boolean):void

方法詳細資訊

releaseItem

()

方法

public function releaseItem(copyStillManagedItems:Boolean = true, enableStillManagedCheck:Boolean = true):void

語言版本:

ActionScript 3.0

產品版本:

Adobe Digital Enterprise Platform Data Services for Java EE 4.5

執行階段版本:

Flash Player 10.1, AIR 2.0

Releases the managed item reference retrieved with the getItem() or createItem() method call that returned this ItemReference. It is possible to have more than one ItemReference that points to the same item on the same client. Use this method to release the proper reference.

參數

	`copyStillManagedItems:Boolean` (default = `true`) — Boolean indicating that a copy of this item should be placed in this ItemReference should the current item still be referenced. This can occur if more than one call to `DataService.getItem()` for this same item is made, or if this item is referenced by a collection returned from a call to `DataService.fill()`.

	`enableStillManagedCheck:Boolean` (default = `true`) — Boolean indicating if the item should be checked for additional references.

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IItemReference - AS3 ADEP Data Services

類別 x

valid

releaseItem