Mailing-List: contact dev-help@poi.apache.org; run by ezmlm
Precedence: bulk
Reply-To: "POI Developers List" <dev@poi.apache.org>
Received-SPF: pass (nike.apache.org: local policy)
From: Kyle Ray <kray@DIRTT.net>
To: POI Developers List <dev@poi.apache.org>
Date: Thu, 8 Jul 2010 09:04:06 -0600
Subject: RE: Commons Math dependency?
Thread-Topic: Commons Math dependency?
Thread-Index: Acseq7f3VMsAvD4rSLq9HKJTgS4zuwAAO3uw
Message-ID: 
 <0DA0AE4CD383BD4E81F798F9B6408EA503F481D1A5@dirtt-exchange.DIRTT.local>
References: <alpine.DEB.1.10.1007081536030.2517@urchin.earth.li>
In-Reply-To: <alpine.DEB.1.10.1007081536030.2517@urchin.earth.li>
Accept-Language: en-US
Content-Language: en-US
acceptlanguage: en-US
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0

Hello,

Depends on how much of the Commons Math you use? If it's only a small perce=
ntage/portion of the commons math library I would just implement your own e=
quivalent methods, terrible I know, but if you expect to use more than a ha=
ndful methods out of Commons Math I would include the whole library as a de=
pendency. If you allow some people to use it and others to run without it y=
ou have to make sure everyone who uses the library handles exceptions prope=
rly when the library isn't available (this is likely to be a major pain in =
your ass) hence why I suggest including it by default.  How hard is it to m=
ake these features work without the Commons Math Library?

For what 'we' use POI for including commons math as a dependency is no prob=
lem, we just use POI for processing data and we don't include POI as a depe=
ndency of our application.

Thank you,
Kyle Ray
d 403-450-3620
c 403-607-3346 =20

-----Original Message-----
From: Nick Burch [mailto:nick.burch@alfresco.com]=20
Sent: Thursday, July 08, 2010 8:41 AM
To: dev@poi.apache.org
Subject: Commons Math dependency?

Hi All

We now have two proposed patches that need commons math. Firstly the
POISSON function (bug #49538), and another (number I forget) which was for=
=20
fractions when formatting numbers.

The latest version of commons math is a 800kb jar file. This is, however,=20
larger than all the existing non-ooxml dependencies put together, and half=
=20
the size of the core POI jar. That said, it's only 20% of the size of the=20
minimal ooxml schemas jar file, and a third of the size of xmlbeans.

What do people think? Would it be ok to include this as a dependency?=20
Should we require it for these features, but let everything else work=20
without it (which could mean you run poi fine for ages, then suddenly one=20
day it blows up saying "hey, I need commons math now!")? Should we decline=
=20
the patches that need commons math, and do without those features?

Thoughts?

Nick

---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@poi.apache.org
For additional commands, e-mail: dev-help@poi.apache.org


---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@poi.apache.org
For additional commands, e-mail: dev-help@poi.apache.org