Module java.base

Package java.lang.classfile.attribute^PREVIEW

Interface PermittedSubclassesAttribute

All Superinterfaces:

AttributePREVIEW<PermittedSubclassesAttributePREVIEW>, ClassElementPREVIEW, ClassFileElementPREVIEW, WritableElementPREVIEW<PermittedSubclassesAttributePREVIEW>

public sealed interface PermittedSubclassesAttribute
extends AttributePREVIEW<PermittedSubclassesAttributePREVIEW>, ClassElementPREVIEW

PermittedSubclassesAttribute is a preview API of the Java platform.

Programs can only use PermittedSubclassesAttribute when preview features are enabled.

Preview features may be removed in a future release, or upgraded to permanent features of the Java platform.

Models the PermittedSubclasses attribute 4.7.31, which can appear on classes to indicate which classes may extend this class. Delivered as a ClassElement^PREVIEW when traversing the elements of a ClassModel^PREVIEW.

The attribute does not permit multiple instances in a given location. Subsequent occurrence of the attribute takes precedence during the attributed element build or transformation.

The attribute was introduced in the Java SE Platform version 17.

Since:

22

Method Summary

Modifier and Type	Method	Description
static PermittedSubclassesAttributePREVIEW	of(ClassEntryPREVIEW... permittedSubclasses)	Returns a PermittedSubclasses attribute.
static PermittedSubclassesAttributePREVIEW	of(List<ClassEntryPREVIEW> permittedSubclasses)	Returns a PermittedSubclasses attribute.
static PermittedSubclassesAttributePREVIEW	ofSymbols(ClassDesc... permittedSubclasses)	Returns a PermittedSubclasses attribute.
static PermittedSubclassesAttributePREVIEW	ofSymbols(List<ClassDesc> permittedSubclasses)	Returns a PermittedSubclasses attribute.
List<ClassEntryPREVIEW>	permittedSubclasses()	Returns the list of permitted subclasses.

Methods declared in interface java.lang.classfile.Attribute^PREVIEW

attributeMapper, attributeName

Methods declared in interface java.lang.classfile.WritableElement^PREVIEW

writeTo

Method Details

permittedSubclasses

List<ClassEntryPREVIEW> permittedSubclasses()

Returns the list of permitted subclasses.

Returns:

the list of permitted subclasses

of

static PermittedSubclassesAttributePREVIEW of(List<ClassEntryPREVIEW> permittedSubclasses)

Returns a PermittedSubclasses attribute.

Parameters:

permittedSubclasses - the permitted subclasses

Returns:

a PermittedSubclasses attribute

of

static PermittedSubclassesAttributePREVIEW of(ClassEntryPREVIEW... permittedSubclasses)

Returns a PermittedSubclasses attribute.

Parameters:

permittedSubclasses - the permitted subclasses

Returns:

a PermittedSubclasses attribute

ofSymbols

static PermittedSubclassesAttributePREVIEW ofSymbols(List<ClassDesc> permittedSubclasses)

Returns a PermittedSubclasses attribute.

Parameters:

permittedSubclasses - the permitted subclasses

Returns:

a PermittedSubclasses attribute

ofSymbols

static PermittedSubclassesAttributePREVIEW ofSymbols(ClassDesc... permittedSubclasses)

Returns a PermittedSubclasses attribute.

Parameters:

permittedSubclasses - the permitted subclasses

Returns:

a PermittedSubclasses attribute