/*
* Based on:
* Ext JS Library 1.1.1
* Copyright(c) 2006-2007, Ext JS, LLC.
*
* Originally Released Under LGPL - original licence link has changed is not relivant.
*
* Fork - LGPL
* <script type="text/javascript">
*/
/**
* @class Roo.data.DataProxy
* @extends Roo.data.Observable
* This class is an abstract base class for implementations which provide retrieval of
* unformatted data objects.<br>
* <p>
* DataProxy implementations are usually used in conjunction with an implementation of Roo.data.DataReader
* (of the appropriate type which knows how to parse the data object) to provide a block of
* {@link Roo.data.Records} to an {@link Roo.data.Store}.<br>
* <p>
* Custom implementations must implement the load method as described in
* {@link Roo.data.HttpProxy#load}.
*/
Roo.data.DataProxy = function(){
this.addEvents({
/**
* @event beforeload
* Fires before a network request is made to retrieve a data object.
* @param {Object} This DataProxy object.
* @param {Object} params The params parameter to the load function.
*/
beforeload : true,
/**
* @event load
* Fires before the load method's callback is called.
* @param {Object} This DataProxy object.
* @param {Object} o The data object.
* @param {Object} arg The callback argument object passed to the load function.
*/
load : true,
/**
* @event loadexception
* Fires if an Exception occurs during data retrieval.
* @param {Object} This DataProxy object.
* @param {Object} o The data object.
* @param {Object} arg The callback argument object passed to the load function.
* @param {Object} e The Exception.
*/
loadexception : true
});
Roo.data.DataProxy.superclass.constructor.call(this);
};
Roo.extend(Roo.data.DataProxy, Roo.util.Observable);
/**
* @cfg {void} listeners (Not available) Constructor blocks listeners from being set
*/