Interface DataForeachFunc

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 DataForeachFunc
extends FunctionPointer

Functional interface declaration of the DataForeachFunc callback.

See Also:

• run(Quark, MemorySegment)

Method Summary

Modifier and Type	Method	Description
void	run(Quark keyId, @Nullable MemorySegment data)	Specifies the type of function passed to g_dataset_foreach().
default MemorySegment	toCallback(Arena arena)	Creates a native function pointer to the upcall(int, MemorySegment, MemorySegment) method.
default void	upcall(int keyId, MemorySegment data, MemorySegment userData)	The upcall method is called from native code.

Method Details

run

void run(Quark keyId,
 @Nullable MemorySegment data)

Specifies the type of function passed to g_dataset_foreach(). It is called with each GQuark id and associated data element, together with the userData parameter supplied to g_dataset_foreach().

Parameters:

keyId - the GQuark id to identifying the data element.

data - the data element.

upcall

default void upcall(int keyId,
 MemorySegment data,
 MemorySegment userData)

The upcall method is called from native code. The parameters are marshaled and run(Quark, MemorySegment) is executed.

toCallback

default MemorySegment toCallback(Arena arena)

Creates a native function pointer to the upcall(int, 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