[jira] [Updated] (SIS-420) Forward references in XML

["Martin Desruisseaux (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SIS-420?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Martin Desruisseaux updated SIS-420:
------------------------------------
    Priority: Minor  (was: Major)

> Forward references in XML
> -------------------------
>
>                 Key: SIS-420
>                 URL: https://issues.apache.org/jira/browse/SIS-420
>             Project: Spatial Information Systems
>          Issue Type: Improvement
>          Components: Metadata
>    Affects Versions: 0.7, 0.8, 1.0, 1.1, 1.2, 1.3, 1.4, 1.5
>            Reporter: Martin Desruisseaux
>            Priority: Minor
>
> In a metadata XML document, an element may be replaced by a reference to another element. [Example derived from catalog.data.gov|https://catalog.data.gov/harvest/object/d2901928-f55b-4ef3-88e9-9de7d3e30554] (search {{Level_2}} in that document):
> {code:xml}
> <gmd:processStep>
>   <gmi:LE_ProcessStep>
>     <gmd:source xlink:href="#Level_2"/>
>   </gmi:LE_ProcessStep>
> </gmd:processStep>
> <gmd:source>
>   <gmd:LI_Source id="Level_2">
>       <gmd:description>
>           <gco:CharacterString>Source Contribution: The Level 2 data are used in processing Level 3 data.</gco:CharacterString>
>       </gmd:description>
>   <gmd:LI_Source>
> </gmd:source>
> {code}
> Support of such reference has been implemented in SIS-173, but only in the cases where the content is defined before {{xlink:href}}. In above example, we have the opposite order. Such forward references should be implemented in SIS. One possible approach may be to to store the parent object and the property name in a {{java.util.Map}} until the definition is found, in which case we can use {{AbstractMetadata.asMap()}} for setting the final value.



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