Package org.gnome.gobject

Class TypeInstance

java.lang.Object

io.github.jwharm.javagi.base.ProxyInstance

org.gnome.gobject.TypeInstance

All Implemented Interfaces:

Proxy

Direct Known Subclasses:

Bitmask, DoubleRange, Event, Expression, FlagSet, Fraction, FractionRange, GObject, Int64Range, IntRange, ParamSpec, RenderNode, ValueArray, ValueList

@Generated("io.github.jwharm.JavaGI")
public class TypeInstance
extends ProxyInstance

An opaque structure used as the base of all type instances.

Constructor Summary

Constructors

Constructor	Description
TypeInstance()	Allocate a new TypeInstance.
TypeInstance(Arena arena)	Allocate a new TypeInstance.
TypeInstance(MemorySegment address)	Create a TypeInstance proxy instance for the provided memory address.
TypeInstance(TypeClass gClass)	Allocate a new TypeInstance with the fields set to the provided values.
TypeInstance(TypeClass gClass, Arena arena)	Allocate a new TypeInstance with the fields set to the provided values.

Method Summary

Modifier and Type	Method	Description
boolean	callParent()	Returns the flag that determines if for virtual method calls, g_type_class_peek_parent() is used to obtain the function pointer of the parent type instead of the instance class.
protected void	callParent(boolean callParent)	Set the flag that determines if for virtual method calls, g_type_class_peek_parent() is used to obtain the function pointer of the parent type instead of the instance class.
static MemoryLayout	getMemoryLayout()	The memory layout of the native struct.
MemorySegment	getPrivate(Type privateType)
TypeClass	readGClass()	Read the value of the field g_class.
void	writeGClass(TypeClass gClass)	Write a value in the field g_class.

Methods inherited from class io.github.jwharm.javagi.base.ProxyInstance

equals, handle, hashCode

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Details

TypeInstance

public TypeInstance(MemorySegment address)

Create a TypeInstance proxy instance for the provided memory address.

Parameters:

address - the memory address of the native object

TypeInstance

public TypeInstance(Arena arena)

Allocate a new TypeInstance.

Parameters:

arena - to control the memory allocation scope

TypeInstance

public TypeInstance()

Allocate a new TypeInstance. The memory is allocated with Arena.ofAuto().

TypeInstance

public TypeInstance(TypeClass gClass,
 Arena arena)

Allocate a new TypeInstance with the fields set to the provided values.

Parameters:

gClass - value for the field gClass

arena - to control the memory allocation scope

TypeInstance

public TypeInstance(TypeClass gClass)

Allocate a new TypeInstance with the fields set to the provided values. The memory is allocated with Arena.ofAuto().

Parameters:

gClass - value for the field gClass

Method Details

getMemoryLayout

public static MemoryLayout getMemoryLayout()

The memory layout of the native struct.

Returns:

the memory layout

readGClass

public TypeClass readGClass()

Read the value of the field g_class.

Returns:

The value of the field g_class

writeGClass

public void writeGClass(TypeClass gClass)

Write a value in the field g_class.

Parameters:

gClass - The new value for the field g_class

getPrivate

public MemorySegment getPrivate(Type privateType)

callParent

protected void callParent(boolean callParent)

Set the flag that determines if for virtual method calls, g_type_class_peek_parent() is used to obtain the function pointer of the parent type instead of the instance class.

Parameters:

callParent - true to call the parent vfunc instead of an overridden vfunc

callParent

public boolean callParent()

Returns the flag that determines if for virtual method calls, g_type_class_peek_parent() is used to obtain the function pointer of the parent type instead of the instance class.

Returns:

true when parent vfunc is called instead of an overridden vfunc, or false when the overridden vfunc of the instance is called.