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Date: Mon, 21 Dec 2009 03:00:18 +0000 (UTC)
From: "Todd Lipcon (JIRA)" <jira@apache.org>
To: avro-dev@hadoop.apache.org
Subject: [jira] Commented: (AVRO-258) Higher-level language for authoring
 schemata
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    [ https://issues.apache.org/jira/browse/AVRO-258?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12793065#action_12793065 ] 

Todd Lipcon commented on AVRO-258:
----------------------------------

Thanks for the input, guys.

bq. We could make the properties, key-value: string name sort=ignore future=property

I'm not a huge fan of this because it makes user-properties intermix with language constructors in a non-clearly-defined way. But I don't feel that strongly - anyone else have some opinions?

bq. The only addition I'd like to add to the grammar is to support optional fields in records

Definitely +1. I was planning on using the keyword "nullable" instead of "optional" since to me "optional" seems to indicate a ternary state possibility (ie unset, set to null, and set to something else). But in general I like that kind of syntactic sugar.

> Higher-level language for authoring schemata
> --------------------------------------------
>
>                 Key: AVRO-258
>                 URL: https://issues.apache.org/jira/browse/AVRO-258
>             Project: Avro
>          Issue Type: New Feature
>          Components: spec
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>         Attachments: AVRO-258.txt, simple-genned.avpr, simple.avpr
>
>
> Early users of Avro have noted that authoring schemas and especially protocols in JSON feels unnatural. This JIRA is to work on a higher-level language that feels more like defining interfaces and classes in Java/C/etc.

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