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From Sean Owen <>
Subject Re: svn commit: r786370 [1/2] - in /lucene/mahout/trunk: core/src/main/java/org/apache/mahout/clustering/canopy/ core/src/main/java/org/apache/mahout/clustering/dirichlet/ core/src/main/java/org/apache/mahout/clustering/dirichlet/models/ core/src/mai
Date Sun, 21 Jun 2009 13:54:59 GMT
Yeah I guess that is what I mean - clone() ought to be implemented in some
way that doesn't involve serializing and deserializing in memory, just
because that is typically going to be much slower. For some classes, maybe
doesn't matter, but probably is quite important for key abstractions like
Vector and Matrix.

On Jun 20, 2009 8:57 PM, "Ted Dunning" <> wrote:

clone is definitely independent of the Hadoop stuff, but if you have a
Writable, then one of the easiest ways to implement clone is just write to a
byte array and then pull it back.

That makes round trip tests a bit easier as well.

On Sat, Jun 20, 2009 at 10:18 AM, Sean Owen <> wrote: > I
may be misunderstanding ...

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