ogc:PropertyIsNull
Element information
Namespace: http://niem.gov/niem/external/ogc-filter/1.1.0/dhs-gmo/1.0.0
Schema document: external/ogc-filter/1.1.0/dhs-gmo/1.0.0/filter.xsd
Type: ogc:PropertyIsNullType
Properties: Global, Qualified
Content
- ogc:PropertyName [1..1]
Attributes
None
Used in
- Type ogc:FilterType (Element ogc:Filter)
- Type ogc:UnaryLogicOpType (Element ogc:Not)
- Type ogc:BinaryLogicOpType (Elements ogc:And, ogc:Or)
Substitution hierarchy
- ogc:comparisonOps
- can be substituted with ogc:PropertyIsNull
Sample instance
<ogc:PropertyIsNull> <ogc:PropertyName/> </ogc:PropertyIsNull>