-Re: Builder pattern and default values in records
James Baldassari 2011-06-15, 15:06
Thanks Doug. I think I'll have some time in the coming weeks to work on
it. I guess I'll go ahead and create a new issue so that we can discuss the
On Wed, Jun 15, 2011 at 5:34 AM, Doug Cutting <[EMAIL PROTECTED]> wrote:
> I don't know of anyone currently working on this. It'd be great to have!
> On 06/13/2011 08:37 PM, James Baldassari wrote:
> > Hi,
> > I was confused about why the Avro compiler wasn't initializing my
> > record's member variables with the default values I specified in my
> > IDL/schema, and then I came across this thread which explained the issue:
> > http://search-hadoop.com/m/iDVTn1JVeSR1
> > In the above thread Doug made this comment:
> > "Factory/builders are probably the best approach at present. Ideally we
> > might generate accessor methods, track which fields have been set, and
> > then set unset fields to their default values before writing."
> > That sounds like a good approach, using mutators to track which fields
> > have been set. Records could also implement the builder pattern, which
> > would make it much more convenient to construct records by chaining
> > setter invocations.
> > It looks like there has been some discussion of this in AVRO-726 and
> > AVRO-770, but there hasn't been much activity lately. Is anyone
> > actively working on this? If no one has the time, I would be glad to
> > work on a patch.
> > -James