Module java.base

Package java.lang.constant

Interface DirectMethodHandleDesc

All Superinterfaces:

ConstantDesc, MethodHandleDesc

public interface DirectMethodHandleDesc
extends MethodHandleDesc

A nominal descriptor for a direct MethodHandle. A DirectMethodHandleDesc corresponds to a Constant_MethodHandle_info entry in the constant pool of a classfile.

API Note:

In the future, if the Java language permits, DirectMethodHandleDesc may become a sealed interface, which would prohibit subclassing except by explicitly permitted types. Non-platform classes should not implement DirectMethodHandleDesc directly.

Since:

12

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static class	DirectMethodHandleDesc.Kind	Kinds of method handles that can be described with DirectMethodHandleDesc.

Method Summary

Modifier and Type	Method	Description
boolean	isOwnerInterface()	Indicates if the method is declared by an interface
DirectMethodHandleDesc.Kind	kind()	Returns the kind of the method handle described by this nominal descriptor.
String	lookupDescriptor()	Returns the lookup descriptor of the method handle described by this descriptor, after adjusting for the invocation mode.
String	methodName()	Returns the name of the method or field described by this nominal descriptor.
ClassDesc	owner()	Returns a ClassDesc describing the class declaring the method or field described by this nominal descriptor.
int	refKind()	Returns the refKind of the method handle described by this nominal reference, as defined by MethodHandleInfo.

Methods declared in interface java.lang.constant.ConstantDesc

resolveConstantDesc

Methods declared in interface java.lang.constant.MethodHandleDesc

asType, equals, invocationType

Method Details

kind

DirectMethodHandleDesc.Kind kind()

Returns the kind of the method handle described by this nominal descriptor.

Returns:

the DirectMethodHandleDesc.Kind

refKind

int refKind()

Returns the refKind of the method handle described by this nominal reference, as defined by MethodHandleInfo.

Returns:

the reference kind

isOwnerInterface

boolean isOwnerInterface()

Indicates if the method is declared by an interface

Returns:

true if the method is declared by an interface

owner

ClassDesc owner()

Returns a ClassDesc describing the class declaring the method or field described by this nominal descriptor.

Returns:

the class declaring the method or field

methodName

String methodName()

Returns the name of the method or field described by this nominal descriptor. For constructors, returns the reserved name "<init>".

Returns:

the name of the method or field

lookupDescriptor

String lookupDescriptor()

Returns the lookup descriptor of the method handle described by this descriptor, after adjusting for the invocation mode. This will correspond to either a method type descriptor string (for methods and constructors), or a field descriptor string (for field access method handles). The lookup descriptor string is in the same format as accepted by MethodHandleDesc.of(Kind, ClassDesc, String, String).

Returns:

the lookup descriptor string