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Posted to user@avro.apache.org by Yang <te...@gmail.com> on 2010/08/31 20:55:50 UTC
add a "property" field to Field ?
sometimes we need a little bit of extra info about a Schema Field.
for example, for a string field, we could say "the max length is 100
chars",
or we could record that "this field is generated from that table".
this would require changes on the serialization/deserialization of the
schema , and an extra set/getProperties() method
Re: add a "property" field to Field ?
Posted by Doug Cutting <cu...@apache.org>.
Field attributes are supported in Avro 1.4.
https://issues.apache.org/jira/browse/AVRO-601
Doug
On 08/31/2010 11:55 AM, Yang wrote:
> sometimes we need a little bit of extra info about a Schema Field.
> for example, for a string field, we could say "the max length is 100
> chars",
> or we could record that "this field is generated from that table".
>
> this would require changes on the serialization/deserialization of the
> schema , and an extra set/getProperties() method
Re: add a "property" field to Field ?
Posted by Yang <te...@gmail.com>.
Thanks a lot
this is what I want, perfect.
but we are using 1.2.0, while doc is present only in 1.3
our environment has a jackson version that has a conflict with 1.3's
jackson , it's a bit tricky
On Tue, Aug 31, 2010 at 11:58 AM, Michael Glaesemann
<mi...@myyearbook.com> wrote:
>
> On Aug 31, 2010, at 14:55 , Yang wrote:
>
>> sometimes we need a little bit of extra info about a Schema Field.
>> for example, for a string field, we could say "the max length is 100
>> chars",
>> or we could record that "this field is generated from that table".
>>
>> this would require changes on the serialization/deserialization of the
>> schema , and an extra set/getProperties() method
>
> Would the field doc attribute work for this?
>
> Michael Glaesemann
> michael.glaesemann@myyearbook.com
>
>
>
>
Re: add a "property" field to Field ?
Posted by Michael Glaesemann <mi...@myyearbook.com>.
On Aug 31, 2010, at 14:55 , Yang wrote:
> sometimes we need a little bit of extra info about a Schema Field.
> for example, for a string field, we could say "the max length is 100
> chars",
> or we could record that "this field is generated from that table".
>
> this would require changes on the serialization/deserialization of the
> schema , and an extra set/getProperties() method
Would the field doc attribute work for this?
Michael Glaesemann
michael.glaesemann@myyearbook.com