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https://issues.apache.org/jira/browse/AVRO-727?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Douglas Creager updated AVRO-727:
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Attachment: 0001-Plethora-of-new-accessor-mutator-methods.patch
Aforementioned patch
> Plethora of new accessors/mutators
> ----------------------------------
>
> Key: AVRO-727
> URL: https://issues.apache.org/jira/browse/AVRO-727
> Project: Avro
> Issue Type: Improvement
> Components: c
> Reporter: Douglas Creager
> Assignee: Douglas Creager
> Attachments: 0001-Plethora-of-new-accessor-mutator-methods.patch
>
>
> I'm attaching a patch that adds a slew of new accessor and mutators methods
> to the C API. I think this is basically complete — any useful piece of
> information about any of the schema or datum types can now be retrieved and
> set.
> Some notes from the commit message:
> - You can create the appropriate avro_datum_t instance for an
> arbitrary schema with the new avro_datum_from_schema() function.
> For records, this includes creating a datum instance for each of the
> record's fields. Arrays and maps are initially created empty, while
> a union is created with none of its branches initially selected.
> This prevents the function from going into an endless loop for
> recursive schemas.
>
> - The active branch of a union can now be changed. If the desired
> branch is already active, this has no result. Otherwise, a new
> avro_datum_t is created for the new branch.
>
> - Map values can now be accessed by index as well as by key. The
> index of a map entry is based on the order that it was added to the
> map.
>
> - Enum values can be retrieved or set either by integer value or by
> symbol name.
>
> A couple of the new functions need access to the schema of a datum in
> order to work. These functions take in the schema instance as an extra
> parameter. A better solution might be to include a reference to a
> schema object in each avro_datum_t instance.
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