Consider supporting per-package JAR file metadata
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Key: FELIX-705
URL: https://issues.apache.org/jira/browse/FELIX-705
Project: Felix
Issue Type: Improvement
Components: Framework
Affects Versions: felix-1.2.0
Reporter: Richard S. Hall
The JAR spec allows metadata to be specified for packages (e.g.,
Package.getSpecificationVersion(), etc.). Currently, Felix supports JAR-wide
metadata (i.e., the metadata is defined once in the manifest main attributes
and is applied to all packages in the JAR file); however, it is also possible
to specify per-package metadata. There are some issues in supporting this that
need to be considered, such as from where to do the values come (i.e., just the
bundle JAR or embedded JARs, etc.) and the impact on performance and memory
consumption.
Probably the simplest approach would be to only support metadata in the bundle
JAR file itself and not in embedded content or fragments, but is this the
correct approach? We need to think about it.
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