Interface Object.OnWeakNotify

Enclosing class:
Object
Functional Interface:
This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface public static interface Object.OnWeakNotify
  • Method Summary

    Modifier and Type
    Method
    Description
    void
    onWeakNotify(CallbackHandler __self, Pointer data, Object where_the_object_was)
    A #GWeakNotify function can be added to an object as a callback that gets
    triggered when the object is finalized.
  • Method Details

    • onWeakNotify

      void onWeakNotify(CallbackHandler __self, @Nullable Pointer data, @Nonnull Object where_the_object_was)
      A #GWeakNotify function can be added to an object as a callback that gets
      triggered when the object is finalized.

      Since the object is already being disposed when the #GWeakNotify is called,
      there's not much you could do with the object, apart from e.g. using its
      address as hash-index or the like.

      In particular, this means it’s invalid to call g_object_ref(),
      g_weak_ref_init(), g_weak_ref_set(), g_object_add_toggle_ref(),
      g_object_weak_ref(), g_object_add_weak_pointer() or any function which calls
      them on the object from this callback.
      Parameters:
      data - data that was provided when the weak reference was established
      where_the_object_was - the object being disposed