Developing the Application Using the Object API

Use the Object API to develop the application. An application consists of building blocks which the developer uses to start the application, perform functions needed for the application, and shutdown and uninstall the application.

Observe best practices to help improve the success of software development for Sybase Unwired Platform.

• Avoid making calls on the "main" thread on the device as this provides a poor response. Instead, use loading screens and activity spinners while doing the work in a background thread or operation queue. Do this while submitting and saving operations, and doing imports that update the tables displayed.
• Use an operation queue if you are trying to process imports and show them as they come in a UITableViewController. The operation callback will overwhelm the UI if you do one at a time. Instead, use an operation queue and process in groups.
• When testing for memory leaks, ignore the one-time startup leaks reported for the Messaging Server service.

• Initializing an Application
  Initialize the application when it starts the first time and subsequently.
• Accessing MBO Data
  Use MBO object queries to retrieve lists of MBO instances, or use dynamic queries that return results sets or object lists.
• Manipulating Data
  Create, update, and delete instances of generated MBO classes.
• Shutting Down the Application
  Shut down an application and clean up connections.
• Debugging Runtime Errors and Performance Analysis
  To handle occurrences of exceptions and special conditions that change the normal flow of the program execution, you must perform error handling.
• Uninstalling the Application
  Uninstall the application and clean up all package- and MBO-level data.