Maintan a stable ordering of properties in xml export
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Key: JCR-1084
URL: https://issues.apache.org/jira/browse/JCR-1084
Project: Jackrabbit
Issue Type: Improvement
Affects Versions: 1.4
Reporter: fabrizio giustina
Priority: Minor
When exporting to xml (system view, not tested with document view) the order of
properties is not consistent.
This is not an issue with the jcr specification, since the order of properties
is undefined, but keeping the same (whatever) order in xml export could be
useful.
At this moment if you try running a few import->export->import->export
roundtrips you will notice that the exported xml often changes. This is an
example of the differences you can see:
<sv:property sv:name="jcr:uuid" sv:type="String">
<sv:value>59357999-b4fb-45cd-8111-59277caf14b7</sv:value>
</sv:property>
+ <sv:property sv:name="title" sv:type="String">
+ <sv:value>test</sv:value>
+ </sv:property>
<sv:property sv:name="visible" sv:type="String">
<sv:value>true</sv:value>
</sv:property>
- <sv:property sv:name="title" sv:type="String">
- <sv:value>test</sv:value>
- </sv:property>
If you may need to diff between two exported files that could be pretty
annoying, you have no clear way to understand if something has really changed
or not.
I would propose to keep ordering consistent between export: an easy way could
be sorting properties alphabetically during export.
This behavior has been tested on a recent jackrabbit build from trunk
(1.4-SNAPSHOT)
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