Creates a new Filter in the database based on the passed Filter object. Returns the Id of the new Filter Creates a new filter object int the database based on the passed parameters. Returns the Id of the new Filter Modifies an exisiting Filter in the database. The Filter object's Id property has to contain the Id of the Filter to be modified. Returns true if successed. Modifies and exiting filter based on the passed parameters. Returns true if successed. Deletes an exisiting Filter from the database. The Filter object's Id property has to contain the Id of the Filter to be deleted. Returns true if successed. Deletes an existing Filter from the database base on the passed id parameter. Returns true if successed. Appends a new wavelength-response pair object to the Filter object identified by the Id parameter. Returns true if successed. Appends a list of new wavelength-response pair objects to the Filter object identified by the Id parameter. Returns true if successed. Deletes all wavelength-response pairs belonging to the Filter identified by the Id parameter. Returns true if successed.