recordType equivalent in ExtJS 4.1 API

[Vinni]

Hi,

Please let me know whats the equivalent for below recordType and Store in ExtJS 4.1 API.

ExtJS 3.4

var recordType = new Ext.data.Record.create([
    {name: 'received', mapping: 'alarm-time'},
    {name: 'severity', mapping: 'alarm-class'},
    {name: 'description', mapping:'alarm-description'},
    {name: 'time-ms', mapping:'alarm-time/@junos:seconds'}
]);

// reader
var reader = new Ext.data.XmlReader({
    record: 'alarm-detail'
}, recordType);

var dataStore = new Ext.data.Store({
         allRecords : null,
         reader : reader,
         model: 'recordType',
         load : function(o){   }
});

ExtJS 4.1 - I tried below piece of code

Ext.define('recordType', {
    extend: 'Ext.data.Model',
    fields: [
        {name: 'received', mapping: 'alarm-time'},
        {name: 'severity', mapping: 'alarm-class'},
        {name: 'description', mapping:'alarm-description'},
        {name: 'time-ms', mapping:'alarm-time/@junos:seconds'}
    ]
});

var dataStore = Ext.create('Ext.data.Store', {     
storeId: 'dataStore',     
model: 'recordType',     
proxy: {         
    type: 'memory',         
    reader: 'array'     }
    load : function(o){   } 
});

Thanks,
Vinamra

[evant]

recordType is the model.

[Vinni]

I am already using model now but its giving error.
Not sure if I am using ExtJS 4.1 API correctly.

Thanks,
Vinni