Server API

Sybase Unwired Platform includes several interfaces that open specific features and functionality of Unwired Server for custom development. Customizing Unwired Server allows you to better control behaviors of these features.

• Result set filter – use a custom Java class to filter the rows or columns of data returned from a read operation for a mobile business object (MBO). You can write a filter to add, delete, or change columns, or to add and delete rows.
• Result checkers – use the custom Java class to implement custom error checking for enterprise information system (EIS) business objects.
• Data change notifications (DCNs) – use an HTTP interface to immediately propagate EIS changes to Unwired Server, rather than using the built-in cache refresh mechanism configured by the Unwired Server administrator.

  DCN requests contain the changed data (delta) of the EIS for which the Unwired Server cache needs to be updated. This request can be in the standard JSON format that Unwired Server expects or in a different format along with a translation logic to convert it into the standard format. This translation logic is coded in a DCN Filter.

• Custom transforms – create a transform to modify the structure of generated Web Services message data, so it can be used by an Unwired Platform MBO.

You can program these functions in any order; each class is implemented independently.