Martin Desruisseaux created SIS-116:
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Summary: Support gco:uuid and href on primitive types
Key: SIS-116
URL: https://issues.apache.org/jira/browse/SIS-116
Project: Spatial Information Systems
Issue Type: Improvement
Components: Metadata
Affects Versions: 0.3
Reporter: Martin Desruisseaux
Priority: Minor
Metadata objects can specified {{gco:uuid}}, {{xlink:href}} and similar
attributes by implementing the {{org.apache.sis.xml.IdentifiedObject}}
interface. However we can not do that for JDK final classes like {{Integer}}
and {{String}}. This is a problem similar to the one described in SIS-115
({{NilReason}} for primitive types) and may be solved in a similar way. We have
not yet solved this problem because the use case for {{gco:uuid}} or
{{xlink:href}} attributes on elements as small as {{Integer}} or {{String}} are
unclear at this stage.
If nevertheless the above-cited support for identifiers is needed, then we
could proceed as below:
* In {{org.apache.sis.internal.jaxb.gco.PropertyType}}, complete the
{{PropertyType(BoundType value, boolean mayBeNil)}} constructor in order to
check for {{XLink}} and {{UUID}} in addition to {{NilReason}}.
* Search usages of the above constructor. Conditions like {{value.intValue() ==
0}} may need to be removed.
* We may need to provide a special implementation of
{{org.apache.sis.xml.IdentifierMap}} which delegate its work to the
{{org.apache.sis.internal.jaxb.PrimitiveTypeProperties}} static methods.
* We may need to provide some static method (location to be determined)
returning an {{IdentifierMap}} for a given {{Object}}, something similar to
what we currently have in {{NilReason.forObject(Object)}}.
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