private ExternalProjectsStructure.DisplayKind getDisplayKind() {
    Class<?>[] visibles = getStructure().getVisibleNodesClasses();
    if (visibles == null) return ExternalProjectsStructure.DisplayKind.NORMAL;
    for (Class<?> each : visibles) {
      if (each.isInstance(this)) return ExternalProjectsStructure.DisplayKind.ALWAYS;
    }
    return ExternalProjectsStructure.DisplayKind.NEVER;
  }
private ExternalProjectsStructure.DisplayKind getDisplayKind()