[jira] [Created] (OAK-4908) Best-effort prefiltering in ChangeProcessor based on ChangeSet

["Stefan Egli (JIRA)" <ji...@apache.org>]

Stefan Egli created OAK-4908:
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             Summary: Best-effort prefiltering in ChangeProcessor based on ChangeSet
                 Key: OAK-4908
                 URL: https://issues.apache.org/jira/browse/OAK-4908
             Project: Jackrabbit Oak
          Issue Type: Technical task
          Components: core, jcr
    Affects Versions: 1.5.11
            Reporter: Stefan Egli
            Assignee: Stefan Egli
             Fix For: 1.6


This is a subtask as a result of [discussions|https://issues.apache.org/jira/browse/OAK-4796?focusedCommentId=15550962&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15550962] around design in OAK-4796:

Based on the ChangeSet provided with OAK-4907 in the CommitContext, the ChangeProcessor should do a best-effort prefiltering of commits before they get added to the (BackgroundObserver's) queue.

This consists of the following parts:
* the support for optionally excluding commits from being added to the queue in the BackgroundObserver
* the ChangeProcessor using OAK-4907's ChangeSet of the CommitContext for best-effort prefiltering
* the BackgroundObserver signaling downstream Observers that a change should be excluded via a {{NOOP_CHANGE}} CommitInfo




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