Abstract base class for reading structured data from a data source and converting it into an object containing PhpExt_Data_Record objects and metadata for use by an PhpExt_Data_Store. This class is intended to be extended and should not be created directly. For existing implementations.
Data reader class to create an Array of Ext.data.Record objects from an Array. Each element of that Array represents a row of data fields. The fields are pulled into a Record object using as a subscript, the mapping property of the field definition if it exists, or the field's ordinal position in the definition.