simpleType "gml:NilReasonType"
Namespace:
Defined:
globally in basicTypes.xsd; see XML source
Used:
Simple Content Model
(("inapplicable" | "missing" | "template" | "unknown" | "withheld") | string) | anyURI
All Direct / Indirect Based Elements (1):
All Direct / Indirect Based Attributes (7):
Known Usage Locations
Annotation
gml:NilReasonType defines a content model that allows recording of an explanation for a void value or other exception. gml:NilReasonType is a union of the following enumerated values: - inapplicable there is no value - missing the correct value is not readily available to the sender of this data. Furthermore, a correct value may not exist - template the value will be available later - unknown the correct value is not known to, and not computable by, the sender of this data. However, a correct value probably exists - withheld the value is not divulged - other:text other brief explanation, where text is a string of two or more characters with no included spaces and - anyURI which should refer to a resource which describes the reason for the exception A particular community may choose to assign more detailed semantics to the standard values provided. Alternatively, the URI method enables a specific or more complete explanation for the absence of a value to be provided elsewhere and indicated by-reference in an instance document. gml:NilReasonType is used as a member of a union in a number of simple content types where it is necessary to permit a value from the NilReasonType union as an alternative to the primary type.
Type Definition Detail
Type Derivation Tree
union of (gml:NilReasonEnumeration | anyURI)
  gml:NilReasonType
Derivation:
by union
Member Types
  1. anyURI
XML Source (see within schema source)
<simpleType name="NilReasonType">
<annotation>
<documentation>
gml:NilReasonType defines a content model that allows recording of an explanation for a void value or other exception.
gml:NilReasonType is a union of the following enumerated values:
- inapplicable there is no value
- missing the correct value is not readily available to the sender of this data. Furthermore, a correct value may not exist
- template the value will be available later
- unknown the correct value is not known to, and not computable by, the sender of this data. However, a correct value probably exists
- withheld the value is not divulged
- other:text other brief explanation, where text is a string of two or more characters with no included spaces
and
- anyURI which should refer to a resource which describes the reason for the exception
A particular community may choose to assign more detailed semantics to the standard values provided. Alternatively, the URI method enables a specific or more complete explanation for the absence of a value to be provided elsewhere and indicated by-reference in an instance document.
gml:NilReasonType is used as a member of a union in a number of simple content types where it is necessary to permit a value from the NilReasonType union as an alternative to the primary type.
</documentation>
</annotation>
<union memberTypes="gml:NilReasonEnumeration anyURI"/>
</simpleType>

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