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Posted to dev@avro.apache.org by "John Gonyo (Jira)" <ji...@apache.org> on 2021/02/11 16:05:00 UTC

[jira] [Created] (AVRO-3039) ClassCache: Cached class map key is too broad

John Gonyo created AVRO-3039:
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             Summary: ClassCache: Cached class map key is too broad
                 Key: AVRO-3039
                 URL: https://issues.apache.org/jira/browse/AVRO-3039
             Project: Apache Avro
          Issue Type: Bug
          Components: csharp
            Reporter: John Gonyo


Currently ClassMap's cache is keyed by the schema full name.  This restricts clients to providing one Plain Old C# Object (POCO) model per schema.  In some cases a client might wish to provide multiple POCO per schema name, perhaps to support multiple versions of the same schema name in the same runtime.

A fix is to use the full RecordSchema as the key instead of just the name.

Additionally, there's a bug in ReflectDefaultReader that can access the incorrect class member property.  Only the reader schema should be used to determine the correct DotNetClass for reading.



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