FAQ
Add metadata to Serializations
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Key: HADOOP-6165
URL: https://issues.apache.org/jira/browse/HADOOP-6165
Project: Hadoop Common
Issue Type: New Feature
Components: contrib/serialization
Reporter: Tom White
Priority: Blocker
Fix For: 0.21.0


The Serialization framework only allows a class to be passed as metadata. This assumes there is a one-to-one mapping between types and Serializations, which is overly restrictive. By permitting applications to pass arbitrary metadata to Serializations, they can get more control over which Serialization is used, and would also allow, for example, one to pass an Avro schema to an Avro Serialization.

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postedJul 22, '09 at 11:24a
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