Avro IDL supports imports:
http://avro.apache.org/docs/current/idl.html#imports
One can also use a protocol with no messages to define multiple,
dependent types.
To get a type from a protocol file in Java one can use something like:
Schema s = Protocol.parse("MyProtocol.avpr").getType("Foo");
Doug
On 06/01/2011 01:33 AM, Yang wrote:
> I have a protocol schema hello.avpr
>
> { ....
> types: {
> { name : input_msg , type: record : fields [
> { name: date , type int },
> { name :msg, type: string}
> ]
> }
>
> }
>
> }
>
>
> now if I need to serialize the record "input_msg", I'm going to need its
> schema,
> so I'd need to pass a schema obj to DataFileWriter. but how can I parse
> the schema out from schema file?
> the schema for "input_msg" is not a standalone file.
>
> I would like a way to write the type of "input_msg" in a standalone
> file, and then reference/include that from my hello.avpr.
> is this possible?
>
>
> also btw, for an avro-generate object class, would it be better to make
> the getSchema() method static?
> that way I can get its schema without creating an actual obj
>
>
>
> maybe this is not a big issue, we can simply create some hack scripts to
> paste together individual files, i.e. creating our own
> "include" macro, but that's kind of kludgy
>
> thanks
> Yang
>
