This class can be used by external clients of CursorAdapter and CursorTreeAdapter to define how the content of the adapter should be filtered.
Runs a query with the specified constraint.
Runs a query with the specified constraint. This query is requested by the filter attached to this adapter. Contract: when constraint is null or empty, the original results, prior to any filtering, must be returned.
|constraint||the constraint with which the query must be filtered|