Hi Gale,
I think you are looking at older branch. This is the new branch
https://github.com/ThilinaManamgoda/incubator-taverna-common-activities/tree/taverna-3.
If you can put suggestions on GitHub also that would be great
regards,
Thilina.
On Sat, Aug 6, 2016 at 2:30 AM, Gale Naylor <[email protected]>
wrote:
> Hi Alan,
>
> Thank you for the explanation and the link. It makes much more sense now.
>
> Gale
>
> On Fri, Aug 5, 2016 at 1:23 PM Alan Williams <[email protected]>
> wrote:
>
> > On 05-Aug-16 18:42, Gale Naylor wrote:
> >
> > Hello Gale
> >
> > > In CwlContextualView.java (I used the wrong filename in my previous
> > email)
> > > I'm also curious about the two private, final (but not static)
> constants
> > > (?): configurationBean and activity.
> > >
> > > I'm not sure this StackOverflow answer is 100% relevant because
> > > configurationBean and activity do not have initial values, but this is
> > all
> > > I've been able to find online:
> > >
> > http://stackoverflow.com/questions/1415955/private-
> final-static-attribute-vs-private-final-attribute
> >
> > If an attribute is not static then each instance of the class has its
> > own attribute. So,
> >
> > private final CwlActivityConfigurationBean configurationBean;
> >
> > means that each CwlContextualView has its own configurationBean value.
> >
> > If an attribute is declared as static, then all instances of the class
> > share the same attribute value.
> >
> > The private means that the value of the configurationBean cannot be
> > accessed (directly) outside of the CwlContextualView. So
> >
> > fred = myCwlContextualView.configurationBean // will not work
> >
> > The final means that once the attribute has a value it cannot be
> > changed. Even stronger, the value must be specified either in the
> > declaration of the attribute, or when you construct an instance of
> > CwlContextualView. (There are weird exceptions to the last sentence that
> > are best ignored and never mentioned in polite company.)
> >
> > If you look at
> >
> > public CwlContextualView(CwlDumyActivity activity)
> >
> > which makes a CwlContextualView, it contains the line:
> >
> > this.configurationBean = activity.getConfiguration();
> >
> > So once you have made a CwlConfigurationView, it has a configurationBean
> > attribute, that nothing else can see, and that has a fixed value.
> >
> > > Can anyone point me to information that would help me understand this
> > > nomenclature?
> >
> > I think
> >
> > http://stackoverflow.com/questions/13772827/difference-
> between-static-and-final
> > explains static and final well.
> >
> > > Thanks,
> > >
> > > Gale
> >
> > Alan
> >
> >
>
