The following structures are used by clients and service providers to limit, test, define, match, filter or sort information:
SAndRestriction
SBitMaskRestriction
SCommentRestriction
SComparePropsRestriction
SContentRestriction
SExistRestriction
SNotRestriction
SOrRestriction
SPropertyRestriction
SRestriction
SSizeRestriction
SSubRestriction