2 * Ext JS Library 2.2.1
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3 * Copyright(c) 2006-2009, Ext JS, LLC.
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4 * licensing@extjs.com
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6 * http://extjs.com/license
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10 * @class Ext.data.DataProxy
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11 * @extends Ext.util.Observable
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12 * This class is an abstract base class for implementations which provide retrieval of
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13 * unformatted data objects.<br>
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15 * DataProxy implementations are usually used in conjunction with an implementation of Ext.data.DataReader
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16 * (of the appropriate type which knows how to parse the data object) to provide a block of
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17 * {@link Ext.data.Records} to an {@link Ext.data.Store}.<br>
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19 * Custom implementations must implement the load method as described in
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20 * {@link Ext.data.HttpProxy#load}.
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22 Ext.data.DataProxy = function(){
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26 * Fires before a network request is made to retrieve a data object.
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27 * @param {Object} this
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28 * @param {Object} params The params object passed to the {@link #load} function
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33 * Fires before the load method's callback is called.
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34 * @param {Object} this
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35 * @param {Object} o The data object
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36 * @param {Object} arg The callback's arg object passed to the {@link #load} function
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40 Ext.data.DataProxy.superclass.constructor.call(this);
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43 Ext.extend(Ext.data.DataProxy, Ext.util.Observable);