OpenEdge Development: Mobile Applications - Product ...

ABL to JavaScript Data Type Mapping
A
An OpenEdge progress.data.JSDO (JSDO) is a JavaScript class instance that
provides the Mobile App behavior for a data resource that is implemented in ABL. A
JSDO communicates with the OpenEdge AppServer through a Mobile service to
marshal ABL data for parameters (and return values) of ABL routines that pass the
following ABL data types: ProDataSets, temp-tables, arrays, and primitive values. The
JSDO provides this ABL data to the Mobile App programmer as JavaScript data types.
For more information on ABL data types, see the reference entry on data types in
OpenEdge Development: ABL Reference. For more information on the format and use
of JavaScript data types, you can review sources on the Web, such as
http://www.w3schools.com/js/js_datatypes.asp.
The following sections present a brief description of JavaScript data types and how
they map to data types in ABL:
• JavaScript data type overview
• Data type mapping between JavaScript and ABL
For more information on JSDOs and how they communicate with an AppServer
through a Mobile service, see the “progress.data.JSDO class” section on page 155.
OpenEdge ® Development: Mobile Applications 147