goog.messaging.AbstractChannel

Invokes a callback function when this object is disposed. Callbacks are invoked in the order in which they were added. If a callback is added to an already disposed Disposable, it will be called immediately.

Immediately calls opt_connectCb if given, and is otherwise a no-op. If subclasses have configuration that needs to happen before the channel is connected, they should override this and #isConnected.

Converts the message payload into the format expected by the registered service (either JSON or string).

Delivers a message to the appropriate service. This is meant to be called by subclasses when they receive messages.

This method takes into account both explicitly-registered and default services, as well as making sure that JSON payloads are decoded when necessary. If the subclass is capable of passing objects as payloads, those objects can be passed in to this method directly. Otherwise, the (potentially JSON-encoded) strings should be passed in.

Disposes of the object and its resources.

Performs appropriate cleanup. See description of goog.disposable.IDisposable for examples. Classes that extend goog.Disposable should override this method. Not reentrant. To avoid calling it twice, it must only be called from the subclass' disposeInternal method. Everywhere else the public dispose method must be used. For example:

 mypackage.MyClass = function() {
 mypackage.MyClass.base(this, 'constructor');
     // Constructor logic specific to MyClass.
     ...
   };
   goog.inherits(mypackage.MyClass, goog.Disposable);

   mypackage.MyClass.prototype.disposeInternal = function() {
     // Dispose logic specific to MyClass.
     ...
     // Call superclass's disposeInternal at the end of the subclass's, like
     // in C++, to avoid hard-to-catch issues.
     mypackage.MyClass.base(this, 'disposeInternal');
   };
 

Find the service object for a given service name. If there's no service explicitly registered, but there is a default service, a service object is constructed for it.

Always returns true. If subclasses have configuration that needs to happen before the channel is connected, they should override this and #connect.

Registers a service to be called when a message is received that doesn't match any other services.

Associates a disposable object with this object so that they will be disposed together.

Registers a service to be called when a message is received.

Implementers shouldn't impose any restrictions on the service names that may be registered. If some services are needed as control codes, goog.messaging.MultiMessageChannel can be used to safely split the channel into "public" and "control" virtual channels.

Sends a message over the channel.

If monitoring the goog.Disposable instances is enabled, stores the creation stack trace of the Disposable instance.

Logger for this class.