javascript - Sencha Touch 2: How to get (multiple) instances of a base class -

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i got following classes on sencha web app:

baseclass

and aclass extends baseclass xtype aclass

and bclass extends baseclass xtype bclass

usually use ext.viewport.down('aclass') instance of class. question if there's way instances of baseclass?

thanks help!

ext.define('baseclass', {     extend: 'ext.component',     xtype: 'baseclass' });  ext.define('aclass', {     extend: 'baseclass',     xtype: 'aclass' });  ext.define('bclass', {     extend: 'baseclass',     xtype: 'bclass' });  var instances = ext.componentquery.query('baseclass')

will return array instances of aclass , bclass


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