Interface ValueCompareFunc

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 ValueCompareFunc
extends FunctionPointer

Functional interface declaration of the ValueCompareFunc callback.

See Also:

• run(Value, Value)

Method Summary

Modifier and Type	Method	Description
int	run(Value value1, Value value2)	Used together with gst_value_compare() to compare GValue items.
default MemorySegment	toCallback(Arena arena)	Creates a native function pointer to the upcall(MemorySegment, MemorySegment) method.
default int	upcall(MemorySegment value1, MemorySegment value2)	The upcall method is called from native code.

Method Details

run

int run(Value value1,
 Value value2)

Used together with gst_value_compare() to compare GValue items.

Parameters:

value1 - first value for comparison

value2 - second value for comparison

Returns:

one of GST_VALUE_LESS_THAN, GST_VALUE_EQUAL, GST_VALUE_GREATER_THAN or GST_VALUE_UNORDERED

upcall

default int upcall(MemorySegment value1,
 MemorySegment value2)

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