To remove unwanted preferences from your eclipse rcp app, we can do the following.
As part of your App MyRCPWorkbenchAdvisor#postStartup() method, you need to invoke the following code with the preference page id.
private void removeUnwantedPreferences()
{
PreferenceManager pm = PlatformUI.getWorkbench().getPreferenceManager();
IPreferenceNode root = getRoot(pm);
if (root != null)
{
removePrefsPage(root, "com.windows.preference.mypage.id");
}
}
//Identify preference node
private IPreferenceNode getRoot(PreferenceManager pm)
{
try
{
Method m = PreferenceManager.class.getDeclaredMethod("getRoot", (Class[]) null);
m.setAccessible(true);
return (IPreferenceNode) m.invoke(pm);
}
catch (Exception e)
{
IdeLog.logWarning(TitaniumCorePlugin.getDefault(), e);
}
return null;
}
//remove preference id from the preference node
private void removePrefsPage(IPreferenceNode root, String id)
{
for (IPreferenceNode node : root.getSubNodes())
{
if (node.getId().equals(id))
{
root.remove(node);
}
else
{
removePrefsPage(node, id);
}
}
}
This seems to be work without any issues.
However, I could see other direct approach but that doesn't seem to work well in all scenarios.
PreferenceManager pm = PlatformUI.getWorkbench().getPreferenceManager();
pm.remove("com.windows.preference.mypage.id");
