/*!
 * Ext JS Library 3.0.3
 * Copyright(c) 2006-2009 Ext JS, LLC
 * licensing@extjs.com
 * http://www.extjs.com/license
 */
/** * @class Ext.data.MemoryProxy * @extends Ext.data.DataProxy * An implementation of Ext.data.DataProxy that simply passes the data specified in its constructor * to the Reader when its load method is called. * @constructor * @param {Object} data The data object which the Reader uses to construct a block of Ext.data.Records. */ Ext.data.MemoryProxy = function(data){ // Must define a dummy api with "read" action to satisfy DataProxy#doRequest and Ext.data.Api#prepare *before* calling super var api = {}; api[Ext.data.Api.actions.read] = true; Ext.data.MemoryProxy.superclass.constructor.call(this, { api: api }); this.data = data; }; Ext.extend(Ext.data.MemoryProxy, Ext.data.DataProxy, {
/** * @event loadexception * Fires if an exception occurs in the Proxy during data loading. Note that this event is also relayed * through {@link Ext.data.Store}, so you can listen for it directly on any Store instance. * @param {Object} this * @param {Object} arg The callback's arg object passed to the {@link #load} function * @param {Object} null This parameter does not apply and will always be null for MemoryProxy * @param {Error} e The JavaScript Error object caught if the configured Reader could not read the data */
/** * MemoryProxy implementation of DataProxy#doRequest * @param {String} action * @param {Ext.data.Record/Ext.data.Record[]} rs If action is load, rs will be null * @param {Object} params An object containing properties which are to be used as HTTP parameters * for the request to the remote server. * @param {Ext.data.DataReader} reader The Reader object which converts the data * object into a block of Ext.data.Records. * @param {Function} callback The function into which to pass the block of Ext.data.Records. * The function must be passed * @param {Object} scope The scope in which to call the callback * @param {Object} arg An optional argument which is passed to the callback as its second parameter. */ doRequest : function(action, rs, params, reader, callback, scope, arg) { // No implementation for CRUD in MemoryProxy. Assumes all actions are 'load' params = params || {}; var result; try { result = reader.readRecords(this.data); }catch(e){ // @deprecated loadexception this.fireEvent("loadexception", this, null, arg, e); this.fireEvent('exception', this, 'response', action, arg, null, e); callback.call(scope, null, arg, false); return; } callback.call(scope, result, arg, true); } });