Timothee Maret created SLING-8065:
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Summary: Introduce ReadOnlyDistributionQueue API
Key: SLING-8065
URL: https://issues.apache.org/jira/browse/SLING-8065
Project: Sling
Issue Type: Improvement
Components: Content Distribution
Affects Versions: Content Distribution Core 0.3.4
Reporter: Timothee Maret
Assignee: Timothee Maret
Fix For: Content Distribution Core 0.3.6
We currently export an
[SPI|https://github.com/apache/sling-org-apache-sling-distribution-core/tree/master/src/main/java/org/apache/sling/distribution/queue/spi]
with a fully editable queue,
[DistributionQueue|https://github.com/apache/sling-org-apache-sling-distribution-core/blob/master/src/main/java/org/apache/sling/distribution/queue/spi/DistributionQueue.java].
Some distribution queue implementation are read-only meaning that they don't
provide the ability to add/remove items. Example of such read-only queue is an
implementation on top of an append only messaging service.
In this issue, I suggest to introduce add and export the
{{ReadOnlyDistributionQueue}} interface. The existing read-only method
signatures from {{DistributionQueue}} would be moved from {{DistributionQueue}}
to {{ReadOnlyDistributionQueue}}. {{DistributionQueue}} would extend from
{{ReadOnlyDistributionQueue}}. This change is backward compatible.
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