[Biojava-l] Changable and rollbacks

[Schreiber, Mark]

Is there a way to test if a change is going to be vetoed before it is
attempted??

For example I would like to peform an operation on a list of sequences but
if I get halfway throught the list and suddenly find a sequence which cannot
be changes I would like to throw an exception and roll back the changes
already made. It would be better if I could check to make sure everything
will be OK before starting.

Can anyone help with this??

Mark


Mark Schreiber
Bioinformatics
AgResearch Invermay
PO Box 50034
Mosgiel
New Zealand

PH: +64 3 489 9175