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[udig-devel] How to make a Custom RCP Application
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That is great Cedric; this page really needs the feedback from someone
trying it in the wild. Part of the reason it is hard to work on this
page is the subject of making an RCP application is covered so many
places on the web. We started that page because it is a road bump ever
developer hits and a single page would be better then buying a book or
hunting down the information scattered across the web.
Additional comments inline.
Hi udigers,
I'm trying to follow the online documentation on building a custom
application based on udig features (SDK RC13). I've passed the distance
tool tutorial and created the feature including this plugin. I followed
this link :
http://udig.refractions.net/confluence/display/DEV/5+Custom+Application+Tutorial
and created a product based on my feature and udig features.
Cool; there is a slightly easier approach involving just marking off
plugins; but it is easier to maintain and
update your application when it is put together with features.
Tying to run my own custom application, I faced some problems related to
WorkBenchConfiguration and menuBuilders as following :
!ENTRY net.refractions.udig.ui 1 0 2007-12-03 14:57:08.125
!MESSAGE Info: Implementation of
net.refractions.udig.ui.WorkbenchConfiguration not specified. Defaulting
to uDig internal implementation.
I am trying to kill this WorkbenchConfiguration step; the extra
complexity saves you making your
own Application; trading real Java code you can see for some xml
configuration steps. Not a good
trade when we can get the same benefit with subclassing.
Exception in thread "Thread-3" java.lang.NullPointerException
at org.eclipse.ui.internal.IntroAction.<init>(IntroAction.java:60)
at org.eclipse.ui.actions.ActionFactory$11.create(ActionFactory.java:338)
at
net.refractions.udig.internal.ui.UDIGActionBarAdvisor.fillHelpMenu(UDIGActionBarAdvisor.java:449)
at
net.refractions.udig.internal.ui.UDIGActionBarAdvisor.fillMenuBar(UDIGActionBarAdvisor.java:165)
Any hints on how to solve this problem ?
Thinking ...
UDIGActionBarAdvisor is a normal ActionBarAdvisor (a stratagy object
used to tell the workbench how to draw the menu and tool bars). It looks
like it had trouble creating one of the out of the box actions defined
by ActionFactory (usually for things like CUT, COPY, PASTE...). Since we
are
building the help menu it is probably something like "Find and Install".
My guess is going to be that the action mentioned at that line number
involves a feature (say online help?) that was not specified in your
application. What is the command at line 449 above - that will be our
next clue.
Jody
