ErrorInitFunc (java-gi API)

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("io.github.jwharm.JavaGI") public interface ErrorInitFunc extends FunctionPointer

Functional interface declaration of the ErrorInitFunc callback.

See Also:

Method Summary

Modifier and Type

Method

Description

void

run(GError error)

Specifies the type of function which is called just after an extended error instance is created and its fields filled.

default MemorySegment

toCallback(Arena arena)

Creates a native function pointer to the upcall(java.lang.foreign.MemorySegment) method.

default void

upcall(MemorySegment error)

The upcall method is called from native code.

Method Details
- run
  
  void run(GError error)
  
  Specifies the type of function which is called just after an extended error instance is created and its fields filled. It should only initialize the fields in the private data, which can be received with the generated *_get_private() function.
  Normally, it is better to use G_DEFINE_EXTENDED_ERROR(), as it already takes care of getting the private data from error.
- upcall
  
  default void upcall(MemorySegment error)
  
  The upcall method is called from native code. The parameters are marshaled and run(org.gnome.glib.GError) is executed.
- toCallback
  
  default MemorySegment toCallback(Arena arena)
  
  Creates a native function pointer to the upcall(java.lang.foreign.MemorySegment) method.
  
  Specified by:
  
  toCallback in interface FunctionPointer
  
  Parameters:
  
  arena - the function pointer will be allocated in this arena
  
  Returns:
  
  the native function pointer