[ptp-dev] Why configuration tab requires two extension points

[Brian Watt <bwatt@xxxxxxxxxx>]

Hi Wyatt,

A general question about ETFw, I'm creating a custom configuration tab, and have extended the org.eclipse.ptp.etfw.configurationTabs extension point.

   <extension
         point="org.eclipse.ptp.etfw.configurationTabs">
      <perfconfigurationtab
            class="com.ibm.ppedev.hpct.etfw.ProfileLaunchTab">
      </perfconfigurationtab>
   </extension>

However, nothing appears on the launch configuration panel until I add in a second extension

   <extension
         point="org.eclipse.debug.ui.launchConfigurationTabs">
      <tab
            class="com.ibm.ppedev.hpct.etfw.ProfileLaunchTab"
            group="org.eclipse.ptp.etfw.launchConfigurationTabGroup"
            id="com.ibm.ppedev.hpct.etfw.ProfileLaunchTab"
            name="TAU">
         <placement
               after="org.eclipse.ptp.etfw.parallelToolSelectionTab">
         </placement>
      </tab>
   </extension>

I see that TAU does the same thing, and my question is why does creating a configuration tab extension requires two extension points?

Brian Watt, IBM