Re: [Mathlib-develop] Change to MathLibObject/VariableList implementation

[mark <msp...@ya...>]

On Wednesday 23 Jul 2003 7:46 pm, Stefan Mueller wrote:
> HI Mark,
> I aggree. Please go ahead.
> Stefan.
>
> mark wrote:
> > Hi,
> >
> > Both the MathLibObject and the VariableList classes implement lists o=
f
> > named variables. They are both implemented using ArrayLists.
> >
> > This is ineficient since when finding a variable by name it is necess=
ary
> > to iterate through the list until we find the correct variable.
> >
> > I think that it would be better to implement these classes using a
> > HashMap since it would speed up variable access and is a better fit t=
o
> > the problem.
> >
> > The only downside I can see is that the code needed to iterate throug=
h a
> > hashes key/value pairs is, to put it politely, suboptimal.
> >
> > What I will most likely do is work on this in a local copy of the cod=
e
> > and only commit it if there aren't any problems.
> >
> > Any comments?
> >

Okay I've changed the MathLibObject and VariableList to use a hash and=20
committed them. You'll probably need to do an ant clean  before rebuildin=
g.

Best regards

Mark Sparshatt
=20