Hi Ede, I tried in this way but it doesn't work for me. I had a some
exceptions even within try/catch blocks.
I will use the option to save a howto_compile.txt file into src folder
Peppe

Il giorno gio 4 giu 2020 alle ore 12:05 <edgar.sol...@web.de> ha scritto:

> On 04.06.2020 10:19, Giuseppe Aruta wrote:
> > Indeed I was planning this way: from user's point of view there is no
> difference.
>
> yup. exactly my point.
>
> > On the other hand, I was thinking about developers who have a project in
> their eclipse connected to svn (or not) and have a warning that a library
> is missing whenever they want to compile (right now, a very rare situation)
>
> this would be solved via reflection meaning instantiating classes from a
> string name and running methods derived from string names as well e.g. like
>
>
> https://stackoverflow.com/questions/3574065/instantiate-a-class-object-with-constructor-that-accepts-a-string-parameter
>
> https://stackoverflow.com/questions/1782598/with-java-reflection-how-to-instantiate-a-new-object-then-call-a-method-on-it
>
> so in your case (just written, down not compiled) roughly
>
> Class<?> cl = Class.forName("com.cadplan.jump.utils.LoadSymbolFiles");
> // find constructor with the context argument
> Constructor<?> cons = cl.getConstructor(WorkbenchContext.class);
> // this is your instance
> Object o = cons.newInstance(context);
> // find & run the method
> Method method = cl.getDeclaredMethod("start");
> method.invoke(o);
>
> this way the classes accessed do not have to be present during compile but
> only during runtime. this may throw a lot of exceptions, so make sure to
> catch them properly, easiest with one catches all.
>
> > I can add a readme text file on SVN>CAD plugin>dist folder explaining
> that VertexSymbol.jar library is required to compile
>
> better put a howto_compile.txt or such in the src folder ;) where devs
> will stumble over it.
>
> > Best regards
> > Peppe
>
> ditto.. sunny regards from rainy germany, ede
>
> >
> >
> > Il giorno mer 3 giu 2020 alle ore 22:20 <edgar.sol...@web.de <mailto:
> edgar.sol...@web.de>> ha scritto:
> >
> >     On 03.06.2020 17:32, Giuseppe Aruta wrote:
> >     > Hi all,
> >     > I want to add VertexSymbolsXXX.jar as depency to CAD plugin.
> >     > This is the reason:
> >     > Currently, whenever the user saves a new block (CAD
> toolbar>Block>Save
> >     > geometry as block) as file, this can be used also as a point/line
> symbol
> >     > for styling. But, to do that, the user needs to close/restart
> again OJ.
> >     > Adding this dependency and using a few lines of code, a new block
> will be
> >     > automatically available as a symbol without restarting OpenJUMP.
> >     > I would like your opinion before to to this change
> >
> >     could you explain why you want to make it a dependency rather than
> just detecting if the other extension is installed and run some code only
> when it is detected?
> >
> >     ..ede
> >
> >
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