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https://issues.apache.org/jira/browse/OAK-117?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13284818#comment-13284818
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Thomas Mueller commented on OAK-117:
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Sounds good! But I wonder if it would prevent us to implement garbage
collection efficiently. I'm not sure. For Jackrabbit 2.x, a typical garbage
collection cycle is: start marking, mark used binaries, sweep. The data store
implementation takes case about deleting entries. If we just add a delete
method (which is elegant I have to admit) how could the data store
implementation take care of marking used binaries? If it doesn't / shouldn't,
we would have to implement marking on top of the MicroKernel interface, which
might not be efficient.
So an alternative to delete(String blobId) would be:
- markStart()
- mark(String blobId)
- sweep()
> MicroKernel API: add delete(String blobId) method
> -------------------------------------------------
>
> Key: OAK-117
> URL: https://issues.apache.org/jira/browse/OAK-117
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Reporter: Stefan Guggisberg
> Assignee: Stefan Guggisberg
>
> the MicroKernel API does provide methods for writing and reading binary data;
> but there's no method to delete binary data.
> i suggest we add the following method:
> boolean delete(String blobId) throws MicroKernelException;
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