| Pakket | mx.data |
| Klasse | public class MessageBatch |
| Overerving | MessageBatch  EventDispatcher Object |
| Implementatie | IExternalizable |
| Taalversie: | ActionScript 3.0 |
| Productversie: | Adobe Digital Enterprise Platform Data Services for Java EE 3 |
| Runtimeversies: | Flash Player 9, AIR 1.1 |
DataStore.currentBatch
property. Changes you make such as property changes detected automatically through
data binding, createItem(), updateItem(), or deleteItem() operations are stored in this
batch. The current list of uncommitted batches is stored in the uncommittedBatches property.
You call createBatch create a new batch which is added to the end of the list. This batch
is automatically made the currentBatch.
You can commit or revert the set of a changes a batch at a time - in both cases, the batch is
automatically removed from the uncommittedBatches list.
When there are dependencies between changes, you should commit and revert changes in order - i.e. commit the oldest batch in the list (uncommittedBatches[0]) and revert the most recent batch - uncommittedBatches[uncommittedBatches.length - 1].
The commitRequired property is set to true when there are any changes in the batch
(i.e. items.length > 0). The items property stores the set of DataMessages in this batch.
You can store custom information in a MessageBatch via the properties
property. Batches are saved/restored each time you use the saveCache method
or automatically when autoSaveCache is true when using the offline feature.
Each batch also has a DataMessage associated with it in the batchMessage property.
If you need to communicate information with the server (and you are sending the batch
message to the server) you can store info in the headers of this message.
Overerfde openbare eigenschappen verbergen
Overerfde openbare eigenschappen weergeven| Eigenschap | Gedefinieerd door | ||
|---|---|---|---|
| batchMessage : DataMessage
This is the data message used to represent the batch being sent to the server. | MessageBatch | ||
| commitRequired : Boolean [alleen-lezen]
True if any changes are in this batch. | MessageBatch | ||
 | constructor : Object
Verwijzing naar het klasseobject of de constructorfunctie van een bepaalde objectinstantie. | Object | |
| properties : Object = null
An optional set of user defined properties you can set for this batch. | MessageBatch | ||
| Methode | Gedefinieerd door | ||
|---|---|---|---|
Constructor. | MessageBatch | ||
| addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void
Registreert een gebeurtenislistenerobject bij een object EventDispatcher, zodat de listener een melding van een gebeurtenis ontvangt. | EventDispatcher | |
Commits the changes in the batch. | MessageBatch | ||
Indicates if there are pending changes for this particular item. | MessageBatch | ||
|
Verzendt een gebeurtenis naar de gebeurtenisstroom. | EventDispatcher | |
Returns the message with the given id. | MessageBatch | ||
|
Controleert of het object EventDispatcher listeners heeft geregistreerd voor een specifiek type gebeurtenis. | EventDispatcher | |
|
Geeft aan of voor een object een opgegeven eigenschap is gedefinieerd. | Object | |
|
Geeft aan of een instantie van de klasse Object zich in de prototypeketen van het object bevindt dat als parameter is opgegeven. | Object | |
|
Geeft aan of de opgegeven eigenschap bestaat en kan worden opgesomd. | Object | |
This method deserializes the message batch. | MessageBatch | ||
|
Verwijdert een listener uit het object EventDispatcher. | EventDispatcher | |
Removes the specified message from this batch. | MessageBatch | ||
Reverts the changes for this batch, either all changes if no item is supplied,
or just the changes for the specified item if it is supplied. | MessageBatch | ||
Reverts the changes for all items in the specified managed collection. | MessageBatch | ||
|
Stelt de beschikbaarheid van een dynamische eigenschap voor lusbewerkingen in. | Object | |
|
Geeft de tekenreeksweergave van dit object weer, geformatteerd volgens de locatiespecifieke conventies. | Object | |
[overschrijven]
Returns a String representation of this object. | MessageBatch | ||
|
Retourneert de primitieve waarde van het opgegeven object. | Object | |
|
Controleert of een gebeurtenislistener is geregistreerd bij dit object EventDispatcher of een van de voorouders voor het opgegeven type gebeurtenis. | EventDispatcher | |
This method serializes the batch with the following stucture:
numberOfElements:int - this is the total number of elements serialized
[repeated element (once for every message in the batch)]
destination:String - the destination of the associated DataService
uid:String - the UID of the associated item
message:DataMessage - the message for the associated change
Because the message currently contains a copy of the item we don't have
to serialize the message in a special way. | MessageBatch | ||
| Constante | Gedefinieerd door | ||
|---|---|---|---|
| items : ArrayCollection
This stores the list of MessageCacheItem instances which represent the
changes in the batch. | MessageBatch | ||
batchMessage | eigenschap |
public var batchMessage:DataMessage| Taalversie: | ActionScript 3.0 |
| Productversie: | Adobe Digital Enterprise Platform Data Services for Java EE 3 |
| Runtimeversies: | Flash Player 9, AIR 1.1 |
This is the data message used to represent the batch being sent to the server. If you need to pass additional per-transaction information you might use the headers of this message to communicate with your server code (assuming it actually sends the message instead of converting it on the client).
commitRequired | eigenschap |
commitRequired:Boolean [alleen-lezen] | Taalversie: | ActionScript 3.0 |
| Productversie: | Adobe Digital Enterprise Platform Data Services for Java EE 3 |
| Runtimeversies: | Flash Player 9, AIR 1.1 |
True if any changes are in this batch. This is a bindable property.
Deze eigenschap kan als de bron voor gegevensbinding worden gebruikt. Wanneer deze eigenschap wordt gewijzigd, wordt de gebeurtenis propertyChange verzonden.
Implementatie
public function get commitRequired():Booleanproperties | eigenschap |
public var properties:Object = null| Taalversie: | ActionScript 3.0 |
| Productversie: | Adobe Digital Enterprise Platform Data Services for Java EE 3 |
| Runtimeversies: | Flash Player 9, AIR 1.1 |
An optional set of user defined properties you can set for this batch.
MessageBatch | () | Constructor |
public function MessageBatch()| Taalversie: | ActionScript 3.0 |
| Productversie: | Adobe Digital Enterprise Platform Data Services for Java EE 3 |
| Runtimeversies: | Flash Player 9, AIR 1.1 |
Constructor.
commit | () | methode |
public function commit(itemsOrCollections:Array = null, cascadeCommit:Boolean = false):mx.rpc:AsyncToken| Taalversie: | ActionScript 3.0 |
| Productversie: | Adobe Digital Enterprise Platform Data Services for Java EE 3 |
| Runtimeversies: | Flash Player 9, AIR 1.1 |
Commits the changes in the batch. Typically called with no arguments.
Parameters
itemsOrCollections:Array (default = null)itemsOrCollections parameter.
| |
cascadeCommit:Boolean (default = false)true to ensure that changes to associated items
are also included in the commit.
|
mx.rpc:AsyncToken — AsyncToken reference to the token that will identify this
operation in a result or fault event dispatched from this service.
|
commitRequiredOn | () | methode |
public function commitRequiredOn(item:Object):Boolean| Taalversie: | ActionScript 3.0 |
| Productversie: | Adobe Digital Enterprise Platform Data Services for Java EE 3.1 |
| Runtimeversies: | Flash Player 9, AIR 1.1 |
Indicates if there are pending changes for this particular item.
Parameters
item:Object — The object that might have changes.
|
Boolean — true if the item has pending changes.
|
getMessage | () | methode |
public function getMessage(messageId:String):DataMessage| Taalversie: | ActionScript 3.0 |
| Productversie: | Adobe Digital Enterprise Platform Data Services for Java EE 3 |
| Runtimeversies: | Flash Player 9, AIR 1.1 |
Returns the message with the given id. Returns null of no message with the given id exists in this batch.
Parameters
messageId:String — id of desired message.
|
DataMessage — the message with the given id. Returns null of no message
with the given id exists in this batch.
|
readExternal | () | methode |
public function readExternal(input:IDataInput):void| Taalversie: | ActionScript 3.0 |
| Productversie: | Adobe Digital Enterprise Platform Data Services for Java EE 3 |
| Runtimeversies: | Flash Player 9, AIR 1.1 |
This method deserializes the message batch. It expects the input byte stream to have the following structure:
- numberOfElements:int - this is the total number of elements serialized [repeated element (once for every message in the batch)] t]
- destination:String - the destination of the associated DataService
- uid:String - the UID of the associated item
- message:DataMessage - the message for the associated change
Parameters
input:IDataInput — input stream
|
removeMessage | () | methode |
public function removeMessage(msg:DataMessage):void| Taalversie: | ActionScript 3.0 |
| Productversie: | Adobe Digital Enterprise Platform Data Services for Java EE 3 |
| Runtimeversies: | Flash Player 9, AIR 1.1 |
Removes the specified message from this batch.
Parameters
msg:DataMessage — message to be removed.
|
revertChanges | () | methode |
public function revertChanges(item:IManaged = null):Boolean| Taalversie: | ActionScript 3.0 |
| Productversie: | Adobe Digital Enterprise Platform Data Services for Java EE 3 |
| Runtimeversies: | Flash Player 9, AIR 1.1 |
Reverts the changes for this batch, either all changes if no item is supplied, or just the changes for the specified item if it is supplied. You should typically only revert changes in the most recent batch as the system does not resolve or fix dependencies if you revert an older change which was depended upon by a later change.
Parameters
item:IManaged (default = null) |
Boolean — true if the revert completed successfully.
|
revertChangesForCollection | () | methode |
public function revertChangesForCollection(collection:ListCollectionView):Boolean| Taalversie: | ActionScript 3.0 |
| Productversie: | Adobe Digital Enterprise Platform Data Services for Java EE 3 |
| Runtimeversies: | Flash Player 9, AIR 1.1 |
Reverts the changes for all items in the specified managed collection.
Parameters
collection:ListCollectionView — The collection to revert.
|
Boolean — true if the revert completed successfully.
|
toString | () | methode |
override public function toString():String| Taalversie: | ActionScript 3.0 |
| Productversie: | Adobe Digital Enterprise Platform Data Services for Java EE 3 |
| Runtimeversies: | Flash Player 9, AIR 1.1 |
Returns a String representation of this object.
Geretourneerde waardeString — A String representation of this object.
|
writeExternal | () | methode |
public function writeExternal(output:IDataOutput):void| Taalversie: | ActionScript 3.0 |
| Productversie: | Adobe Digital Enterprise Platform Data Services for Java EE 3 |
| Runtimeversies: | Flash Player 9, AIR 1.1 |
This method serializes the batch with the following stucture:
- numberOfElements:int - this is the total number of elements serialized [repeated element (once for every message in the batch)]
- destination:String - the destination of the associated DataService
- uid:String - the UID of the associated item
- message:DataMessage - the message for the associated change
Because the message currently contains a copy of the item we don't have to serialize the message in a special way.
Parameters
output:IDataOutput — object to write serialized bytes to.
|
items | Constante |
public const items:ArrayCollection| Taalversie: | ActionScript 3.0 |
| Productversie: | Adobe Digital Enterprise Platform Data Services for Java EE 3 |
| Runtimeversies: | Flash Player 9, AIR 1.1 |
This stores the list of MessageCacheItem instances which represent the changes in the batch. It is bindable so you can listen for change events on this collection to be notified of new changes.
Wed Jun 13 2018, 11:42 AM Z