Konrad Windszus created SLING-6968:
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Summary: Resource Merger: Add another resource picker which
explicitly merges two resources given by path
Key: SLING-6968
URL: https://issues.apache.org/jira/browse/SLING-6968
Project: Sling
Issue Type: Improvement
Components: Extensions
Affects Versions: Resource Merger 1.3.4
Reporter: Konrad Windszus
Currently both resource pickers "overlay" and "override" shipped with the Sling
Resource Merger determine only one resource from the given path url. The
underlying/overlying resources are determined either via
"sling:resourceSuperType" or via the resource resolver's search path.
It would be useful to add a third resource picker which would allow to merge
two explicitly specified resources (because both paths are given in the merged
resource path).
One concrete use case for that would be a composition pattern (in AEM: a dialog
definition being composed out of multiple dialog definition child resources,
being maintained somewhere in the repository but still allowing to overwrite
some of the properties of the referenced dialog definition child resource).
One idea how to encode both paths is via a suffix. So the merged resource at
{{/mnt/merge/<path1>;<path2>}} would merge the resource given at {{<path1>}}
with the resource given at {{<path2>}}.
The only question is how to encode the two paths in the merged resource path
(what to use as separator)
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