| Paket | mx.messaging |
| Sınıf | public class MultiTopicConsumer |
| Miras Alma | MultiTopicConsumer  AbstractConsumer MessageAgent EventDispatcher Object |
| Dil Sürümü: | ActionScript 3.0 |
| Ürün Sürümleri: | BlazeDS 4, Adobe Digital Enterprise Platform Data Services for Java EE 3 |
| Çalışma Zamanı Sürümleri: | Flash Player 9, AIR 1.1 |
Like the regular Consumer, the MultiTopicConsumer sends subscribe and unsubscribe messages which generate a MessageAckEvent or MessageFaultEvent depending upon whether the operation was successful or not. Once subscribed, a MultiTopicConsumer dispatches a MessageEvent for each message it receives.
MXML Sözdizimi
MXML Sözdizimini Göster
MXML Sözdizimini GizleThe <mx:MultiTopicConsumer> tag has these properties:
<mx:Consumer
Properties
subscriptions=""an empty ArrayCollection of SubscriptionInfo objects"
resubscribeAttempts="5"
resubscribeInterval="5000"
timestamp="No default."
/>
| Özellik | Tanımlayan: | ||
|---|---|---|---|
 | authenticated : Boolean [salt okunur]
Indicates if this MessageAgent is using an authenticated connection to
its destination. | MessageAgent | |
| channelSet : ChannelSet
Provides access to the ChannelSet used by the MessageAgent. | MessageAgent | |
| clientId : String [salt okunur]
Provides access to the client id for the MessageAgent. | MessageAgent | |
| connected : Boolean [salt okunur]
Indicates whether this MessageAgent is currently connected to its
destination via its ChannelSet. | MessageAgent | |
| constructor : Object
Belirli bir nesne örneği için sınıf nesnesine veya yapıcı işlevine bir başvuru. | Object | |
| destination : String
Provides access to the destination for the MessageAgent. | MessageAgent | |
| maxFrequency : uint
Determines the maximum number of messages per second the Consumer wants
to receive. | AbstractConsumer | |
| requestTimeout : int
Provides access to the request timeout in seconds for sent messages. | MessageAgent | |
| resubscribeAttempts : int
The number of resubscribe attempts that the Consumer makes in the event
that the destination is unavailable or the connection to the destination fails. | AbstractConsumer | |
| resubscribeInterval : int
The number of milliseconds between resubscribe attempts. | AbstractConsumer | |
| subscribed : Boolean [salt okunur]
Indicates whether the Consumer is currently subscribed. | AbstractConsumer | |
| subscriptions : ArrayCollection
Stores an Array of SubscriptionInfo objects. | MultiTopicConsumer | ||
| timestamp : Number
Contains the timestamp of the most recent message this Consumer
has received. | AbstractConsumer | |
| Yöntem | Tanımlayan: | ||
|---|---|---|---|
Constructor. | MultiTopicConsumer | ||
|
Invoked by a MessageResponder upon receiving a result for a sent
message. | MessageAgent | |
| addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void
EventDispatcher nesnesi olan bir olay dinleyici nesnesini, dinleyicinin bir olayın bildirimini alması için kaydeder. | EventDispatcher | |
This is a convenience method for adding a new subscription. | MultiTopicConsumer | ||
|
Handles a CONNECT ChannelEvent. | MessageAgent | |
|
Handles a DISCONNECT ChannelEvent. | MessageAgent | |
|
Handles a ChannelFaultEvent. | MessageAgent | |
| [geçersiz kıl]
Disconnects the Consumer from its remote destination. | AbstractConsumer | |
|
Olay akışına bir olay gönderir. | EventDispatcher | |
|
Invoked by a MessageResponder upon receiving a fault for a sent message. | MessageAgent | |
|
EventDispatcher nesnesinin belirli bir olay türü için kayıtlı dinleyicisi olup olmadığını kontrol eder. | EventDispatcher | |
|
Bir nesnenin belirli bir özelliğinin tanımlı olup olmadığını gösterir. | Object | |
|
Returns true if there are any pending requests for the passed in message. | MessageAgent | |
|
Called after the implementing object has been created
and all properties specified on the tag have been assigned. | MessageAgent | |
|
Object sınıfının bir örneğinin parametre olarak belirtilen nesnenin prototip zincirinde olup olmadığını gösterir. | Object | |
|
Logs the MessageAgent out from its remote destination. | MessageAgent | |
|
Belirtilen özelliğin bulunup bulunmadığını ve numaralandırılabilir olup olmadığını gösterir. | Object | |
|
Requests any messages that are queued for this Consumer on the server. | AbstractConsumer | |
|
EventDispatcher nesnesinden bir dinleyiciyi kaldırır. | EventDispatcher | |
This method removes the subscription specified by the subtopic
and selector. | MultiTopicConsumer | ||
|
Sets the credentials that the MessageAgent uses to authenticate to
destinations. | MessageAgent | |
|
Dinamik bir özelliğin döngü işlemlerinde kullanılabilirliğini ayarlar. | Object | |
|
Sets the remote credentials that will be passed through to the remote destination
for authenticating to secondary systems. | MessageAgent | |
|
Subscribes to the remote destination. | AbstractConsumer | |
|
Bu nesnenin, yerel ayara özel kurallara göre biçimlendirilmiş dize temsilini döndürür. | Object | |
|
Belirtilen nesnenin dize olarak temsil edilen halini döndürür. | Object | |
|
Unsubscribes from the remote destination. | AbstractConsumer | |
|
Belirtilen nesnenin temel değerini döndürür. | Object | |
|
Bir olay dinleyicisinin bu EventDispatcher nesnesiyle mi, yoksa onun belirtilen olay türüne yönelik üst öğelerinden biriyle mi kayıtlı olduğunu kontrol eder. | EventDispatcher | |
| Yöntem | Tanımlayan: | ||
|---|---|---|---|
[geçersiz kıl]
Returns a subscribe message. | MultiTopicConsumer | ||
[geçersiz kıl]
Returns an unsubscribe mesage. | MultiTopicConsumer | ||
|
Handles the authentication fault on the server. | MessageAgent | |
|
Used to automatically initialize the channelSet property for the
MessageAgent before it connects for the first time. | MessageAgent | |
|
Sends a Message from the MessageAgent to its destination using the
agent's ChannelSet. | MessageAgent | |
|
This function should be overriden by sublasses to implement reauthentication due to
server session time-out behavior specific to them. | MessageAgent | |
| Olay | Özet | Tanımlayan: | ||
|---|---|---|---|---|
| Dispatched when an acknowledge message is received for a sent message. | MessageAgent | ||
| [broadcast olayı] Flash Player veya AIR uygulaması işletim sistemi odağına gelip etkin olduğunda gönderilir. | EventDispatcher | ||
| Dispatched when the underlying Channel the MessageAgent is using connects. | MessageAgent | ||
| Dispatched when the underlying Channel the MessageAgent is using disconnects. | MessageAgent | ||
| Dispatched when the underlying Channel the MessageAgent is using faults. | MessageAgent | ||
| [broadcast olayı] Çalışan Flash Player veya AIR uygulaması sistem odağını kaybettiğinde ve etkin olmayan duruma geldiğinde gönderilir. | EventDispatcher | ||
| Dispatched when a message fault occurs. | MessageAgent | ||
| Dispatched when a message is received by the Consumer. | MultiTopicConsumer | |||
| Dispatched when the connected property of the MessageAgent changes. | MessageAgent | ||
subscriptions | özellik |
subscriptions:ArrayCollection| Dil Sürümü: | ActionScript 3.0 |
| Ürün Sürümleri: | BlazeDS 4, Adobe Digital Enterprise Platform Data Services for Java EE 3 |
| Çalışma Zamanı Sürümleri: | Flash Player 9, AIR 1.1 |
Stores an Array of SubscriptionInfo objects. Each subscription contains a subtopic and a selector each of which can be null. A subscription with a non-null subtopic restricts the subscription to messages delivered with only that subtopic. If a subtopic is null, it uses the selector with no subtopic. If the selector and the subtopic is null, the subscription receives any messages targeted at the destination with no subtopic. The subtopic can contain a wildcard specification.
Before a call to the subscribe() method, this property
can be set with no side effects.
After the MultiTopicConsumer has subscribed to its destination, changing this
value has the side effect of updating the MultiTopicConsumer's subscription to
include any new subscriptions and remove any subscriptions you deleted from
the ArrayCollection.
The remote destination must understand the value of the selector expression.
Bu özellik veri ciltleme kaynağı olarak kullanılabilir. Bu özellik değiştirildiğinde, propertyChange olayını gönderir.
Uygulama
public function get subscriptions():ArrayCollection public function set subscriptions(value:ArrayCollection):voidMultiTopicConsumer | () | Yapıcı |
public function MultiTopicConsumer()| Dil Sürümü: | ActionScript 3.0 |
| Ürün Sürümleri: | BlazeDS 4, Adobe Digital Enterprise Platform Data Services for Java EE 3 |
| Çalışma Zamanı Sürümleri: | Flash Player 9, AIR 1.1 |
Constructor.
Örnek ( Bu örnek nasıl kullanılır? )
function initConsumer():void
{
var consumer:Consumer = new MultiTopicConsumer();
consumer.destination = "NASDAQ";
consumer.addEventListener(MessageEvent.MESSAGE, messageHandler);
consumer.addSubscription("myStock1", "operation IN ('BID', 'Ask')");
consumer.addSubscription("myStock2", "operation IN ('BID', 'Ask')");
consumer.subscribe();
}
function messageHandler(event:MessageEvent):void
{
var msg:IMessage = event.message;
var info:Object = msg.body;
trace("-App recieved message: " + msg.toString());
}
addSubscription | () | yöntem |
public function addSubscription(subtopic:String = null, selector:String = null, maxFrequency:uint = 0):void| Dil Sürümü: | ActionScript 3.0 |
| Ürün Sürümleri: | BlazeDS 4, Adobe Digital Enterprise Platform Data Services for Java EE 3 |
| Çalışma Zamanı Sürümleri: | Flash Player 9, AIR 1.1 |
This is a convenience method for adding a new subscription. It just creates a new SubscriptionInfo object and adds it to the subscriptions property. To call this method, you provide the subtopic and selector string for the new subscription. If the subtopic is null, the subscription applies to messages which do not have a subtopic set in the producer. If the selector string is null, all messages sent which match the subtopic string are received by this consumer.
Parametreler
subtopic:String (default = null) | |
selector:String (default = null) | |
maxFrequency:uint (default = 0) |
buildSubscribeMessage | () | yöntem |
override protected function buildSubscribeMessage():CommandMessage| Dil Sürümü: | ActionScript 3.0 |
| Ürün Sürümleri: | BlazeDS 4, Adobe Digital Enterprise Platform Data Services for Java EE 3 |
| Çalışma Zamanı Sürümleri: | Flash Player 9, AIR 1.1 |
Returns a subscribe message.
DöndürürCommandMessage — The subscribe CommandMessage.
|
buildUnsubscribeMessage | () | yöntem |
override protected function buildUnsubscribeMessage(preserveDurable:Boolean):CommandMessage| Dil Sürümü: | ActionScript 3.0 |
| Ürün Sürümleri: | BlazeDS 4, Adobe Digital Enterprise Platform Data Services for Java EE 3 |
| Çalışma Zamanı Sürümleri: | Flash Player 9, AIR 1.1 |
Returns an unsubscribe mesage.
Parametreler
preserveDurable:Boolean — When true, durable JMS subscriptions are
not destroyed, allowing consumers to later resubscribe and
receive missed messages.
|
CommandMessage — The unsubscribe CommandMessage.
|
removeSubscription | () | yöntem |
public function removeSubscription(subtopic:String = null, selector:String = null):void| Dil Sürümü: | ActionScript 3.0 |
| Ürün Sürümleri: | BlazeDS 4, Adobe Digital Enterprise Platform Data Services for Java EE 3 |
| Çalışma Zamanı Sürümleri: | Flash Player 9, AIR 1.1 |
This method removes the subscription specified by the subtopic and selector.
Parametreler
subtopic:String (default = null) | |
selector:String (default = null) |
message | Olay |
mx.messaging.events.MessageEventözellik MessageEvent.type =
mx.messaging.events.MessageEvent.MESSAGE| Dil Sürümü: | ActionScript 3.0 |
| Ürün Sürümleri: | BlazeDS 4, Adobe Digital Enterprise Platform Data Services for Java EE 3 |
| Çalışma Zamanı Sürümleri: | Flash Player 9, AIR 1.1 |
Dispatched when a message is received by the Consumer.
The MESSAGE event type; dispatched upon receipt of a message.The value of this constant is "message".
The properties of the event object have the following values:
| Property | Value |
|---|---|
bubbles | false |
cancelable | false |
currentTarget | The Object that defines the
event listener that handles the event. For example, if you use
myButton.addEventListener() to register an event listener,
myButton is the value of the currentTarget. |
message | The message associated with this event. |
target | The Object that dispatched the event;
it is not always the Object listening for the event.
Use the currentTarget property to always access the
Object listening for the event. |
Tue Jun 12 2018, 01:09 PM Z