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<pre class="prettyprint lang-js"><span id='Ext-direct-Provider'>/**
</span> * @class Ext.direct.Provider
* @extends Ext.util.Observable
* <p>Ext.direct.Provider is an abstract class meant to be extended.</p>
*
* <p>For example ExtJs implements the following subclasses:</p>
* <pre><code>
Provider
|
+---{@link Ext.direct.JsonProvider JsonProvider}
|
+---{@link Ext.direct.PollingProvider PollingProvider}
|
+---{@link Ext.direct.RemotingProvider RemotingProvider}
* </code></pre>
* @abstract
*/
Ext.direct.Provider = Ext.extend(Ext.util.Observable, {
<span id='Ext-direct-Provider-cfg-id'> /**
</span> * @cfg {String} id
* The unique id of the provider (defaults to an {@link Ext#id auto-assigned id}).
* You should assign an id if you need to be able to access the provider later and you do
* not have an object reference available, for example:
* <pre><code>
Ext.Direct.addProvider(
{
type: 'polling',
url: 'php/poll.php',
id: 'poll-provider'
}
);
var p = {@link Ext.Direct Ext.Direct}.{@link Ext.Direct#getProvider getProvider}('poll-provider');
p.disconnect();
* </code></pre>
*/
<span id='Ext-direct-Provider-cfg-priority'> /**
</span> * @cfg {Number} priority
* Priority of the request. Lower is higher priority, <tt>0</tt> means "duplex" (always on).
* All Providers default to <tt>1</tt> except for PollingProvider which defaults to <tt>3</tt>.
*/
priority: 1,
<span id='Ext-direct-Provider-cfg-type'> /**
</span> * @cfg {String} type
* <b>Required</b>, <tt>undefined</tt> by default. The <tt>type</tt> of provider specified
* to {@link Ext.Direct Ext.Direct}.{@link Ext.Direct#addProvider addProvider} to create a
* new Provider. Acceptable values by default are:<div class="mdetail-params"><ul>
* <li><b><tt>polling</tt></b> : {@link Ext.direct.PollingProvider PollingProvider}</li>
* <li><b><tt>remoting</tt></b> : {@link Ext.direct.RemotingProvider RemotingProvider}</li>
* </ul></div>
*/
<span id='Ext-direct-Provider-method-constructor'> // private
</span> constructor : function(config){
Ext.apply(this, config);
this.addEvents(
<span id='Ext-direct-Provider-event-connect'> /**
</span> * @event connect
* Fires when the Provider connects to the server-side
* @param {Ext.direct.Provider} provider The {@link Ext.direct.Provider Provider}.
*/
'connect',
<span id='Ext-direct-Provider-event-disconnect'> /**
</span> * @event disconnect
* Fires when the Provider disconnects from the server-side
* @param {Ext.direct.Provider} provider The {@link Ext.direct.Provider Provider}.
*/
'disconnect',
<span id='Ext-direct-Provider-event-data'> /**
</span> * @event data
* Fires when the Provider receives data from the server-side
* @param {Ext.direct.Provider} provider The {@link Ext.direct.Provider Provider}.
* @param {event} e The {@link Ext.Direct#eventTypes Ext.Direct.Event type} that occurred.
*/
'data',
<span id='Ext-direct-Provider-event-exception'> /**
</span> * @event exception
* Fires when the Provider receives an exception from the server-side
*/
'exception'
);
Ext.direct.Provider.superclass.constructor.call(this, config);
},
<span id='Ext-direct-Provider-method-isConnected'> /**
</span> * Returns whether or not the server-side is currently connected.
* Abstract method for subclasses to implement.
*/
isConnected: function(){
return false;
},
<span id='Ext-direct-Provider-method-connect'> /**
</span> * Abstract methods for subclasses to implement.
*/
connect: Ext.emptyFn,
<span id='Ext-direct-Provider-method-disconnect'> /**
</span> * Abstract methods for subclasses to implement.
*/
disconnect: Ext.emptyFn
});
</pre>
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