A result set filter is a custom Java class deployed to Unwired Server that manipulates rows and columns of data before synchronization.
Result set filters are more versatile (and more complicated to implement) than an attribute filter implemented through a synchronization parameter, since you must write code that implements the filter, instead of simply mapping a parameter to a column to use as the filter. See Developers Reference: Server API.
- The device application initiates a synchronization request to a mobile business object that implements a result set filter.
- Unwired Server applies the result set filter to the CDB data requested by the device application. For example, the result set filter combines two columns into one.
- Unwired Server synchronizes the device with the results.