W3cubDocs

Interface Signature.TypeParam

Enclosing interface:: Signature

public static sealed interface Signature.TypeParam

Models a signature for a type parameter of a generic class, interface, method, or constructor, which introduces a type variable.

See Java Language Specification:

4.4 Type Variables

See Java Virtual Machine Specification:

4.7.9.1 Signatures

Since:

See Also:

Method Summary

Modifier and Type	Method	Description
`Optional<Signature.RefTypeSig>`	`classBound()`	Returns the class bound of the type parameter.
`String`	`identifier()`	Returns the name of the type parameter.
`List<Signature.RefTypeSig>`	`interfaceBounds()`	Returns the interface bounds of the type parameter.
`static Signature.TypeParam`	`of(String identifier, Signature.RefTypeSig classBound, Signature.RefTypeSig... interfaceBounds)`	Returns a signature for a type parameter.
`static Signature.TypeParam`	`of(String identifier, Optional<Signature.RefTypeSig> classBound, Signature.RefTypeSig... interfaceBounds)`	Returns a signature for a type parameter.

Method Details

identifier

String identifier()

Returns the name of the type parameter.

Returns:: the name of the type parameter

classBound

Optional<Signature.RefTypeSig> classBound()

Returns the class bound of the type parameter. This may be empty if this type parameter only has interface bounds.

Returns:: the class bound of the type parameter

interfaceBounds

List<Signature.RefTypeSig> interfaceBounds()

Returns the interface bounds of the type parameter. This may be empty.

Returns:: the interface bounds of the type parameter

of

static Signature.TypeParam of(String identifier, Signature.RefTypeSig classBound, Signature.RefTypeSig... interfaceBounds)

Returns a signature for a type parameter.

Parameters:: identifier - the name of the type parameter; classBound - the class bound of the type parameter, may be null; interfaceBounds - the interface bounds of the type parameter
Returns:: a signature for a type parameter

of

static Signature.TypeParam of(String identifier, Optional<Signature.RefTypeSig> classBound, Signature.RefTypeSig... interfaceBounds)

Returns a signature for a type parameter.

Parameters:: identifier - the name of the type parameter; classBound - the optional class bound of the type parameter; interfaceBounds - the interface bounds of the type parameter
Returns:: a signature for a type parameter

© 1993, 2025, Oracle and/or its affiliates. All rights reserved.
Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
Various third party code in OpenJDK is licensed under different licenses (see Debian package).
Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.
https://docs.oracle.com/en/java/javase/25/docs/api/java.base/java/lang/classfile/Signature.TypeParam.html