GH-87: [Vector] Add ExtensionWriter (#697) #4
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Based on changes from apache/arrow#41731. ## What's Changed Added writer ExtensionWriter with 3 methods: - write method for writing values from Extension holders; - writeExtensionType method for writing values (arguments is Object because we don't know exact type); - addExtensionTypeFactory method - because the exact vector and value type are unknown, the user should create their own extension type vector, write for it, and ExtensionTypeFactory, which should map the vector and writer. Closes apache#87. Co-authored-by: Finn Völkel <[email protected]>
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Based on changes from apache/arrow#41731.
What's Changed
Added writer ExtensionWriter with 3 methods:
Closes apache#87.