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From Andrey Gura <ag...@gridgain.com>
Subject Re: All BinaryObjects created by BinaryObjectBuilder stored at the same partition by default
Date Tue, 02 Aug 2016 06:00:37 GMT
I think we also should print some warning in case when hashCode() wasn't
called on BinaryObject explicitly.

On Tue, Aug 2, 2016 at 2:20 AM, Dmitriy Setrakyan <dsetrakyan@apache.org>
wrote:

> On Mon, Aug 1, 2016 at 10:01 AM, Alexey Goncharuk <
> alexey.goncharuk@gmail.com> wrote:
>
> > Dmitriy,
> >
> > The question is how do you calculate the value of the hashCode? Do you
> want
> > it to be specified explicitly in INSERT statement?
> >
>
> I think optionally we should allow to specify hashCode as part of the
> INSERT statement. However, if it is not specified, we should calculate it
> automatically based in the key fields defined in the schema/type. Agree?
>
>
> >
> > 2016-08-01 19:47 GMT+03:00 Dmitriy Setrakyan <dsetrakyan@apache.org>:
> >
> > > Alex,
> > >
> > > In your case, why not just explicitly set hashcode every time you
> create
> > an
> > > object? There is BinaryObjectBuilder.hashCode(...) method.
> > >
> > > D.
> > >
> > > On Mon, Aug 1, 2016 at 7:42 AM, al.psc <
> alexander.a.paschenko@gmail.com>
> > > wrote:
> > >
> > > > Guys,
> > > >
> > > > It seems like this problem has become an important one once again.
> > > > In the course of working on
> > > > https://issues.apache.org/jira/browse/IGNITE-2294 (DML support)
> > there's
> > > > need
> > > > to support binary marshaller. And, although we can build just
> > > BinaryObject
> > > > and put it to cache, without adequate hash code it won't be stored
> > > > properly.
> > > > Currently SQL MERGE works simply by deserializing newly built object,
> > but
> > > > it's obviously wrong and is just a workaround rather a solution.
> > > > Has anyone come with possible design proposals for this problem's
> > > solution?
> > > >
> > > > Thanks.
> > > >
> > > > - Alex
> > > >
> > > >
> > > >
> > > > --
> > > > View this message in context:
> > > >
> > >
> >
> http://apache-ignite-developers.2346864.n4.nabble.com/All-BinaryObjects-created-by-BinaryObjectBuilder-stored-at-the-same-partition-by-default-tp8042p10304.html
> > > > Sent from the Apache Ignite Developers mailing list archive at
> > > Nabble.com.
> > > >
> > >
> >
>



-- 
Andrey Gura
GridGain Systems, Inc.
www.gridgain.com

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