FILTER MANAGER SYSTEM AND METHOD OF MANAGING FILTER EXPRESSIONS

摘要

A filter manager system has a predicate combiner for handling grouping of predicates with brackets into one or more predicate groups based on a user input. The system also has an operator handler for handling one or more operato rs between the predicate groups to compose a filter. A filter user interface of the system receives the user input and presents the predicates and the operators to the user based on information from the predicate combiner and the operator handler.