[Jmol-developers] load time -- some answers/some questions

[Bob H. <ha...@st...>]

Nico and Miguel,

It appears that any classes in packages in

org.jmol.*

are read in full regardless of their access. Even when

org.jmol.readers contains a single class that does nothing
at all (I mean, totally empty), it is read.

If, on the other hand, the desired optional classes are in, say,

org.jmoloptions.readers

then we are ok. They do not get loaded until needed.

For example, I created:

org.jmoloptions.readers.XyzReader.class
org.jmoloptions.smilesmatcher.PatternMatcher.class

and when Jmol loads now, that reader's jar file is only downloaded
after caffeine.xyz is opened, and the smiles code is only downloaded
after "select substructure()" is issued from the console.

So I think I have at least defined the conditions for optional 
downloading --
optional classes cannot be in org.jmol.

Before we act on this, I'd like someone to confirm that this is the
defined behavior and that we are not just missing some sort of simple
thing that would make any largescale changes unnecessary.

If we do need to make changes, I suggest creating something like the 
following options:

org.jmoloptions.jvxl
org.jmoloptions.popupmenu
org.jmoloptions.quantum
org.jmoloptions.readers0  (some subset of readers)
org.jmoloptions.readers1  (some subset of readers)
org.jmoloptions.readers2  (some subset of readers)
org.jmoloptions.shapebio
org.jmoloptions.shapespecial
org.jmoloptions.smiles

Then, as Nico pointed out, we don't need any sort of additional user flags.
I think I've done what I can on this until I hear from you two.

Bob