if ( Activator.getDefault().getDialogSettings().get( PluginConstants.PREFS_HIERARCHY_VIEW_MODE ) == null )
{
Activator.getDefault().getDialogSettings().put( PluginConstants.PREFS_HIERARCHY_VIEW_MODE,
PluginConstants.PREFS_HIERARCHY_VIEW_MODE_SUPERTYPE );
}
showSupertypeHierarchy = new ShowSupertypeHierarchyAction( view );
showSubtypeHierarchy = new ShowSubtypeHierarchyAction( view );
linkWithEditor = new LinkWithEditorHierarchyViewAction( view );
openPreferencePage = new OpenHierarchyViewPreferencesAction();
}