/**
+ * @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
+ *
The Record block object
+ *
The "arg" argument from the load function
+ *
A boolean success indicator
+ *
+ * @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);
+ }
+});
+
+
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