Description Vlad Klicnik 2001-10-10 22:49:31 EDT

from eclipse.org news group

Subject: 
             PDE Error on Nature definition
        Date: 
             Tue, 14 Aug 2001 15:54:45 -0400
       From: 
             Pat McCarthy <patmc@us.ibm.com>
 Organization: 
             OTI-RTP - Eclipse Jumpstart Team
 Newsgroups: 
             eclipse.tools




I'm not sure this was reported before - I hope not (as it just spent a bit of time hitting the wall on this). 

(An aside - what will it take to get this newsgroup accessible from a dejanews/google search?  Then it would be
easy to find any related entries). 

The PDE support for a nature extension creates the following xml: 
<extension 
      id="com.ibm.wsweducation.solution.resources.natures" 
      name="eduNature" 
      point="org.eclipse.core.resources.natures"> 
   <nature> 
      <runtime 
            class="com.ibm.wsweducation.solution.resources.ProjectNature"> 
      </runtime> 
   </nature> 
</extension> 

This nature could never be added to a project description - a CoreException was thrown. 
I kept replacing my nature with the JavaNature defined as part of the JDT plugin - and my add nature logic would
work fine....  I finally saw why.  This is the xml for the JDT JavaNature extension: 
<extension 
         point="org.eclipse.core.resources.natures" 
         id="javanature" 
         name="Java Nature"> 
         <runtime> 
              <run class="org.eclipse.jdt.internal.core.JavaProject"> 
              </run> 
         </runtime> 
</extension> 

And no   <nature></nature> tags.  When I use the source view for the plug-in editor to fix my ProjectNature xml
definition (added <run></run> and removed <nature></nature>) - my nature works fine... 

Regards, 

Pat Mc. 


NOTES:

DG (8/16/2001 5:45:43 PM)
The problem is with the incorrect nature extension point schema that was created using incorrect
reference document. 

Extension point schema has been fixed. Need to fix the reference document 
(org_eclipse_core_resources_natures.html in 'doc' directory).