protected property

A closure or anonymous function which receives an instance of this class, a collection name and associated meta information, and returns an array defining the schema for an associated model, where the keys are field names, and the values are arrays defining the type information for each field. At a minimum, type arrays must contain a 'type' key. For more information on schema definitions, and an example schema callback implementation, see the $_schema property of the Model class.


	protected $_schema = null;