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https://issues.apache.org/jira/browse/OAK-1556?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Thomas Mueller updated OAK-1556:
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Fix Version/s: (was: 1.4)
> Document and test additional BlobStore contracts
> ------------------------------------------------
>
> Key: OAK-1556
> URL: https://issues.apache.org/jira/browse/OAK-1556
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: core
> Reporter: Thomas Mueller
> Assignee: Thomas Mueller
> Priority: Minor
> Labels: api, documentation, test
>
> The original BlobStore implementations support an additional contract, which
> is tested, but so far the applications can't rely on. The contract is that
> concatenating multiple blobIds is a valid blobId, and means the binaries are
> concatenated. The use cases are to support partial and concurrent uploads /
> transfers. Depending on the backend, this can speed up transfers quite a bit.
> Also, it allows new use cases, for example "resume upload" without having to
> re-upload or stream the existing binary.
> The DataStore implementations don't support those use cases. Now, with the
> DataStoreBlobStore compatibility wrapper, this contract can't be supported by
> all BlobStore implementations. That's fine. However, the tests against the
> other BlobStores should still test this contract.
> I will add a new marker interface "ChunkingBlobStore" so the unit tests can
> verify the contract.
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