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  1. Apache Arrow
  2. ARROW-5929

[Java] Define API for ExtensionVector whose data must be serialized prior to being sent via IPC

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    • Type: Improvement
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: Java

      Description

      As being discussed on the mailing list, a possible use case for ExtensionVector involves having the Arrow buffers contain pointer-type values referring to memory outside of the Arrow memory heap. In IPC, such vectors would need to be serialized to a wholly Arrow-resident form, such as a VarBinaryVector. We do not have an API to allow for this, so this JIRA proposes to add new functions that can indicate to the IPC layer that an ExtensionVector requires additional serialization to a native Arrow type (in such case, the extension type metadata would be discarded)

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              • Assignee:
                fan_li_ya Liya Fan
                Reporter:
                wesm Wes McKinney
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