wangtao
/
fireInternet


			
				
					
						
						
							1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859
							<!DOCTYPE html>
<html>
<head>
  <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
  <title>The source code</title>
  <link href="../resources/prettify/prettify.css" type="text/css" rel="stylesheet" />
  <script type="text/javascript" src="../resources/prettify/prettify.js"></script>
  <style type="text/css">
    .highlight { display: block; background-color: #ddd; }
  </style>
  <script type="text/javascript">
    function highlight() {
      document.getElementById(location.hash.replace(/#/, "")).className = "highlight";
    }
  </script>
</head>
<body onload="prettyPrint(); highlight();">
  <pre class="prettyprint lang-js"><span id='Ext-data-proxy-SessionStorage'>/**
</span> * @author Ed Spencer
 *
 * Proxy which uses HTML5 session storage as its data storage/retrieval mechanism. If this proxy is used in a browser
 * where session storage is not supported, the constructor will throw an error. A session storage proxy requires a
 * unique ID which is used as a key in which all record data are stored in the session storage object.
 *
 * It's important to supply this unique ID as it cannot be reliably determined otherwise. If no id is provided but the
 * attached store has a storeId, the storeId will be used. If neither option is presented the proxy will throw an error.
 *
 * Proxies are almost always used with a {@link Ext.data.Store store}:
 *
 *     new Ext.data.Store({
 *         proxy: {
 *             type: 'sessionstorage',
 *             id  : 'myProxyKey'
 *         }
 *     });
 *
 * Alternatively you can instantiate the Proxy directly:
 *
 *     new Ext.data.proxy.SessionStorage({
 *         id  : 'myOtherProxyKey'
 *     });
 *
 * Note that session storage is different to local storage (see {@link Ext.data.proxy.LocalStorage}) - if a browser
 * session is ended (e.g. by closing the browser) then all data in a SessionStorageProxy are lost. Browser restarts
 * don't affect the {@link Ext.data.proxy.LocalStorage} - the data are preserved.
 */
Ext.define('Ext.data.proxy.SessionStorage', {
    extend: 'Ext.data.proxy.WebStorage',
    alias: 'proxy.sessionstorage',
    alternateClassName: 'Ext.data.SessionStorageProxy',
    
    //inherit docs
    getStorageObject: function() {
        return window.sessionStorage;
    }
});
</pre>
</body>
</html>