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From Doug Cutting <cutt...@apache.org>
Subject Re: Adding extra fields into the schema
Date Mon, 19 Jul 2010 18:40:03 GMT
This should work.

There are existing tests for schema properties are in TestSchema.java. 
The checkProp() method is called to add a property to every type of 
schema, print the schema with that property, then re-parse it and check 
that the property is still there.

Can you provide a complete test case that illustrates this failing?



On 07/17/2010 10:45 AM, Harsh J wrote:
> I'm wondering if there's a way to add user-defined name:value pairs
> into the Avro JSON schema itself?
> For instance, while building my schema (by using setFields for a
> collection of fields), for some fields I do the following: [Using Java
> API]
> fieldObject.schema().addProp("myproperty", "myvalue");
> I see that it adds to the schema like this:
> {
>      "name" : "someFieldXYZ",
>      "type" : {
>        "type" : "bytes",
>        "myproperty" : "myvalue"
>      },
>      "default" : "XYZ"
> }
> But when I re-parse this created schema and try to retrieve my
> property back, I get a null. I do this for getting it back:
> fieldObject.schema.getProp("myproperty");
> Why am I getting a null here? How do I access what's I embedded into
> the schema properly back again? Or is this plain WRONG a thing to do?
> [Type resolution still works fine even after it getting modified like that].

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