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Properties Methods Events Config Options Direct Link 
Observable
-  Store

Class Ext.data.Store

Package:Ext.data
Defined In:Store.js
Class:Store
Subclasses:ArrayStore, DirectStore, GroupingStore, JsonStore, XmlStore
Extends:Observable

The Store class encapsulates a client side cache of Record -objects which provide input data for Components such as the GridPanel, -the ComboBox, or the DataView.

-

Retrieving Data

-

A Store object may access a data object using:

-

Reading Data

-

A Store object has no inherent knowledge of the format of the data object (it could be -an Array, XML, or JSON). A Store object uses an appropriate configured implementation -of a DataReader to create Record instances from the data -object.

-

Store Types

-

There are several implementations of Store available which are customized for use with -a specific DataReader implementation. Here is an example using an ArrayStore which implicitly -creates a reader commensurate to an Array data object.

-
var myStore = new Ext.data.ArrayStore({
-    fields: ['fullname', 'first'],
-    idIndex: 0 // id for each record will be the first element
-});
-

For custom implementations create a basic Ext.data.Store configured as needed:

-
// create a Record constructor:
-var rt = Ext.data.Record.create([
-    {name: 'fullname'},
-    {name: 'first'}
-]);
-var myStore = new Ext.data.Store({
-    // explicitly create reader
-    reader: new Ext.data.ArrayReader(
-        {
-            idIndex: 0  // id for each record will be the first element
-        },
-        rt // recordType
-    )
-});
-

Load some data into store (note the data object is an array which corresponds to the reader):

-
var myData = [
-    [1, 'Fred Flintstone', 'Fred'],  // note that id for the record is the first element
-    [2, 'Barney Rubble', 'Barney']
-];
-myStore.loadData(myData);
-

Records are cached and made available through accessor functions. An example of adding -a record to the store:

-
var defaultData = {
-    fullname: 'Full Name',
-    first: 'First Name'
-};
-var recId = 100; // provide unique id for the record
-var r = new myStore.recordType(defaultData, ++recId); // create new record
-myStore.insert(0, r); // insert a new record into the store (also see add)
-

Writing Data

-

And new in Ext version 3, use the new DataWriter to create an automated, Writable Store -along with RESTful features.

Config Options

Config OptionsDefined By
 data : Array
An inline data object readable by the reader. -Typically this option, or the url option will be specified.
Store
 proxy : Ext.data.DataProxy
The DataProxy object which provides -access to a data object. See url.
Store

Public Properties

PropertyDefined By
 fields : Ext.util.MixedCollection
A MixedCollection containing the defined Fields -for the Records stored in this Store. Read-only.
Store
 isDestroyed : Boolean -True if the store has been destroyed already. Read only
Store
 multiSort : Boolean -True if this store is currently sorted by more than one field/direction combination.
Store
 multiSortInfo : Object
Object containing overall sort direction and an ordered array of sorter configs used when sorting on multiple fields
Store

Public Methods

MethodDefined By

Public Events

EventDefined By
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