Interface CustomFilterFunc

All Superinterfaces:
FunctionPointer
Functional Interface:
This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
@FunctionalInterface @Generated("org.javagi.JavaGI") public interface CustomFilterFunc extends FunctionPointer

Functional interface declaration of the CustomFilterFunc callback.

See Also:

  • Method Details

    • run

      boolean run(GObject item)

      User function that is called to determine if the item should be matched.

      If the filter matches the item, this function must return true. If the item should be filtered out, false must be returned.

      Parameters:
      item - the item to be matched
      Returns:
      true to keep the item around

    • upcall

      default int upcall(MemorySegment item, MemorySegment userData)
      The upcall method is called from native code. The parameters are marshaled and run(GObject) is executed.

    • toCallback

      default MemorySegment toCallback(Arena arena)
      Creates a native function pointer to the upcall(MemorySegment, MemorySegment) method.
      Specified by:
      toCallback in interface FunctionPointer
      Parameters:
      arena - the arena in which the function pointer is allocated
      Returns:
      the native function pointer