[news.eclipse.platform] Re: Extension points: get attributes info from d

[deam_38@xxxxxxxx (deam)]

deam wrote:

> deam wrote:

> > Hi,

> > If I define an extension point like this (Extension Point Creation Wizard):

> > - extension
> >     '----- sequence
> >     '         '-----myPoint (1-*)
> >     '----- point
> >     '----- id
> >     '----- name
> > - myPoint 
> >     '----- id    (type = string)
> >     '----- class (type = java)
> >     '----- icon  (type = resource)
> >     '----- info  (type = string)

> > If class is the user defined class (name) which extends an abstract class 
> > (MyClass) that I defined.

> > I would like to know how can I get the informations entered by the user of 
> > my extension point (id, icon, info) from the source code of the abstract 
> > class (MyClass).

> > Thank you for any help.

> > And if you have links to any interresting documents about extension 
> > points...


> I did find a way to answer to my problem but it musn't be THE good way 
> since I use internal / deprecated methods. I've added the following piece 
> of code in the start() method of my plugin Activator.

> ***********************************
> IExtensionPoint[] extensionPoints = getDescriptor().getExtensionPoints();

> ViewRegistry viewRegistry  = 
> (ViewRegistry)getWorkbench().getViewRegistry();

> for(IExtensionPoint extensionPoint : extensionPoints){

>   IConfigurationElement[] configurationElements =
>   extensionPoint.getConfigurationElements();

>   for(int i=0; i<configurationElements.length; i++){			
>     String[] attributeNames = configurationElements[i].getAttributeNames();

>     String class = configurationElements[i].getAttribute("class");
>     String icon = configurationElements[i].getAttribute("icon");
>     String info = configurationElements[i].getAttribute("info");
>   }
> }
> ***********************************

> After that, the 3 variables (class, icon, info) have the value that the 
> user which implements my extension point did enter in its plugin.xml file



The following article explains just what I was looking for :

http://www.eclipse.org/articles/Article-Plug-in-architecture/plugin_architecture.html

esspecialy in the following section:

3.1. Obtaining References to the Extensions of an Extension-Point