----- "Bill Barker" <billwbar...@verizon.net> a écrit :
> ----- Original Message -----
> From: <luc.maison...@free.fr>
> To: "Commons Developers List" <dev@commons.apache.org>
> Sent: Wednesday, June 17, 2009 2:58 PM
> Subject: Re: svn commit: r785552 - in /commons/proper/math/trunk/src:
>
> java/org/apache/commons/math/complex/Complex.java
> site/xdoc/changes.xml
>
>
>
> >----- "Phil Steitz" <phil.ste...@gmail.com> a écrit :
> >
> >> Sorry if I am being dense here. What serialization problem do the
> new
> >> fields cause, exactly? The class is immutable and they are set by
> the
> >> constructor.
> >
> >It takes more space to store. If someone uses serialization to store
> or
> >send a bunch of complex >this will vastly increase the load.
>
> The main problem is that the fields can be either transient or final,
> but
> not both (or rather, you can't reset the value of final fields in
> readObject). I have a slight preference for transient for the reason
> Luc
> gave (a BlockFieldMatrix<ComplexField> will get large quickly), and
> have no
> problem doing the change myself. But I can wait for other opinions.
+1 for that.
You can reset final fields in readObject, with some java.lang.reflect dirty
tricks. Look at the DeserializeReal{Vector, Matrix} methods in MatrixUtils.
Luc
>
>
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