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From "Doug Cutting (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AVRO-872) Allow interdependancies across IDL schema imports
Date Thu, 11 Aug 2011 20:30:27 GMT

    [ https://issues.apache.org/jira/browse/AVRO-872?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13083499#comment-13083499
] 

Doug Cutting commented on AVRO-872:
-----------------------------------

We should perhaps remove the 'experimental' declaration from the IDL documentation.  I don't
think we should make incompatible changes to the syntax of IDL, so we might as well declare
it stable.  But that's another issue...

Bill, will you use the parse(File[]) method, or would you instead use an IDL file?  It's not
yet clear to me that method is so common a pattern that it warrants adding here.  If we think
it's a common pattern then we should at add some javadoc, otherwise we should remove it. 
Other than that, I'm willing to commit this.



> Allow interdependancies across IDL schema imports
> -------------------------------------------------
>
>                 Key: AVRO-872
>                 URL: https://issues.apache.org/jira/browse/AVRO-872
>             Project: Avro
>          Issue Type: Improvement
>            Reporter: Bill Graham
>            Assignee: Doug Cutting
>         Attachments: AVRO-872.patch, AVRO-872.patch, AVRO-872.patch, AVRO-872_4.patch
>
>
> This currently doesn't work because Player depends on Position, but it should:
> {noformat}
> $ cat position.avsc 
> {"type":"enum", "name": "Position", "namespace": "avro.examples.baseball",
>     "symbols": ["P", "C", "B1", "B2", "B3", "SS", "LF", "CF", "RF", "DH"]
> }
> $ cat player.avsc 
> {"type":"record", "name":"Player", "namespace": "avro.examples.baseball",
>   "fields": [
>    {"name": "number", "type": "int"},
>    {"name": "first_name", "type": "string"},
>    {"name": "last_name", "type": "string"},
>    {"name": "position", "type": {"type": "array", "items": "avro.examples.baseball.Position"}
}
>   ]
> }
> $ cat baseball.avdl 
> @namespace("avro.examples.baseball")
> protocol Baseball {
>    import schema "position.avsc";
>    import schema "player.avsc";
> }
> $ java -jar avro-tools-1.5.1.jar idl baseball.avdl baseball.avpr
> {noformat}

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