Constraint Type Attribute
| Tag | (0082,0032) |
|---|---|
| Type | Required (1) |
| Keyword | ConstraintType |
| Value Multiplicity | 1 |
| Value Representation | Code String (CS) |
Describes how the value(s) specified in the Constraint Value Sequence (0082,0034) shall be used to determine the acceptability of a given value for the Attribute identified by Selector Attribute (0072,0026)
See Section 10.25.1.
Enumerated Values:
- RANGE_INCL
-
- RANGE_EXCL
-
- GREATER_OR_EQUAL
-
- LESS_OR_EQUAL
-
- GREATER_THAN
-
- LESS_THAN
-
- EQUAL
-
- MEMBER_OF
-
- NOT_MEMBER_OF
-
- MEMBER_OF_CID
-
- UNCONSTRAINED
-
Section 10.25.1
10.25.1 Constraint Type
The use of the specified value(s) in the Constraint Value Sequence (0082,0034) to constrain the value of the Attribute referenced by the Selector Attribute (0072,0026) shall depend on the value of Constraint Type (0082,0032) as follows:
- RANGE_INCL
-
the value is constrained to lie between the specified values, or be equal to one of the specified values
- RANGE_EXCL
-
the value is constrained to lie outside (i.e., not between) the specified values
- GREATER_OR_EQUAL
-
the value is constrained to be greater than or equal to the specified value
- LESS_OR_EQUAL
-
the value is constrained to be less than or equal to the specified value
- GREATER_THAN
-
the value is constrained to be greater than the specified value
- LESS_THAN
-
the value is constrained to be less than the specified value
- EQUAL
-
the value is constrained to be equal to the specified value
- MEMBER_OF
-
the value is constrained to be equal to one of the specified values
- NOT_MEMBER_OF
-
the value is constrained to be not equal to any of the specified values
- MEMBER_OF_CID
-
the value is constrained to be equal to a member of the specified CID
- UNCONSTRAINED
-
the value of the Selector Attribute (0072,0026) is not constrained
For MEMBER_OF_CID, Constraint Value Sequence (0082,0034) shall contain a single Selector UI Value (0072,007F), containing a Context Group UID (see Table A-3 Context Group UID Values in PS3.6 ).
RANGE_INCL, RANGE_EXCL, GREATER_OR_EQUAL, LESS_OR_EQUAL, GREATER_THAN or LESS_THAN shall only be specified if the Selector Attribute (0072,0026) is AS, DA, DS, DT, FD, FL, IS, SL, SS, TM, UL or US.
See Section C.2.2.2 in PS3.4 for further guidance on value comparison.
Note
MEMBER_OF with a single Item in the Constraint Value Sequence (0082,0034) is valid and is equivalent to EQUAL.
10.25.1.1 Multi-valued Attribute Constraints
If the Attribute referenced by the Selector Attribute (0072,0026) has a value multiplicity of greater than 1 and the value of Selector Value Number (0072,0028) is 0, all values in the selected Attribute shall be compared to the single specified value. The constraint is violated if any of the multiple values do not satisfy the comparison.