[kepler-dev] graph dependency on kernel.util

[Edward A. Lee]

One way to fix these dependencies would be to move the
Nameable interface to util and make the exception package use
it instead of NamedObj.

Edward

At 04:03 PM 6/6/2008, Christopher Brooks wrote:
>Currently, the ptolemy.graph depends on kernel.util
>for the exceptions and it uses NamedObj in one
>place to for a better error message.
>
>This morning, I tried changing ptolemy.graph so that
>it used ptolemy.graph.GraphActionException and
>GraphInvalidStateException.
>
>Both these exceptions currently extend similar exceptions
>in kernel.util but I thought that if this worked out, I would
>consider breaking the dependency.
>
>Anyway, it turns out that there are a bunch of methods
>in Variable, TypedIOPort, type.MonotonicFunction, 
>actor.lib.RecordUpdater type.FunctionType and many
>other places where we have inner classes that extend
>the graph classes like InequalityTerm.  The problem
>is that these are all declared to throw IllegalActionException.
>
>Is it worth making these changes and cleaning up the
>dependency?  I don't mind doing the work, but it does
>mean that old code will likely break.
>
>_Christopher
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------------ 
Edward A. Lee
Chair of EECS and Robert S. Pepper Distinguished Professor
231 Cory Hall, UC Berkeley, Berkeley, CA 94720-1770
phone: 510-642-0253, fax: 510-642-2845
eal at eecs.Berkeley.EDU, http://www.eecs.berkeley.edu/Faculty/Homepages/lee.html