Windows Mobile Client Object API

Describes solutions and examples for tasks and uses of the Sybase Unwired Platform Windows Mobile Client Object API. The Client Object API enables you to customize mobile business object data flow and handling for the Windows Mobile device application.

• Connection APIs
  The Connection APIs contain methods for managing local database information, establishing a connection with the Unwired Server and authenticating.
• Synchronization APIs
  The client object API allows you to change synchronization parameters and perform mobile business object synchronization.
• Query APIs
  The Query APIs allow you to retrieve data from mobile business objects, to retrieve relationship data and paging data, and to retrieve and filter a query result set.
• Operations APIs
  Mobile business object operations are performed on an MBO instance. Operations in the model that are marked as create, update, or delete (CUD) operations create instances (non-static) of operations in the generated client-side objects.
• Local Business Object
  A business object can be either local or mobile. A Local Business Object (LBO) is a client-only object. LBOs are useful to persist an application’s local data without updating the backend. The difference between a LBO and an MBO is that an MBO’s operations are sent to the backend. LBO’s operations are updated only to the local state do not affect the backend. For example, an LBO would be well suited to store some bookkeeping information on an application device.
• Personalization APIs
  Personalization keys allow the application to define certain input parameter values that differ (are personalized) from each mobile user. The Personalization APIs allow you to manage personalization keys, and get and set personalization key values.
• Object State APIs
  The object state APIs provide methods for returning information about the state of an entity.
• Utility APIs
  The Utility APIs allow you to customize aspects of logging, callback handling, and generated code.
• Exceptions
  Reviewing exceptions allows you to identify where an error has occurred during application execution.
• MetaData and Object Manager API
  The MetaData and Object Manager API allows you to access metadata for database, classes, entities, attributes, operations, and parameters.
• Replication-Based Synchronization APIs
  The following operations are available when performing replication-based synchronization.
• Message-Based Synchronization APIs
  Message-based synchronization uses the publish/subscribe model. During a subscription, the subscriber indicates the data to be received from the publisher. When a subscription is established, the publisher must send all relevant data to the subscriber (to maintain the data state on the client).