Interface MethodHandleEntry

All Superinterfaces:

LoadableConstantEntryPREVIEW, PoolEntryPREVIEW

public sealed interface MethodHandleEntry
extends LoadableConstantEntryPREVIEW

MethodHandleEntry is a preview API of the Java platform.

Programs can only use MethodHandleEntry when preview features are enabled.

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

Models a CONSTANT_MethodHandle_info constant in the constant pool of a classfile.

See Java Virtual Machine Specification:

4.4.8 The CONSTANT_MethodHandle_info Structure

Since:

22

Field Summary

Fields declared in interface java.lang.classfile.constantpool.PoolEntry^PREVIEW

TAG_CLASS, TAG_DOUBLE, TAG_DYNAMIC, TAG_FIELDREF, TAG_FLOAT, TAG_INTEGER, TAG_INTERFACE_METHODREF, TAG_INVOKE_DYNAMIC, TAG_LONG, TAG_METHOD_HANDLE, TAG_METHOD_TYPE, TAG_METHODREF, TAG_MODULE, TAG_NAME_AND_TYPE, TAG_PACKAGE, TAG_STRING, TAG_UTF8

Method Summary

Modifier and Type	Method	Description
DirectMethodHandleDesc	asSymbol()	Returns a symbolic descriptor for this method handle.
default ConstantDesc	constantValue()	Returns the constant described by this entry.
int	kind()	Returns the reference kind of this method handle (JVMS 4.4.8).
MemberRefEntryPREVIEW	reference()	Returns the constant pool entry describing the method.

Methods declared in interface java.lang.classfile.constantpool.LoadableConstantEntry^PREVIEW

typeKind

Methods declared in interface java.lang.classfile.constantpool.PoolEntry^PREVIEW

constantPool, index, tag, width

Method Details

constantValue

default ConstantDesc constantValue()

Description copied from interface: LoadableConstantEntry

Returns the constant described by this entry.

Specified by:

constantValue in interface LoadableConstantEntryPREVIEW

Returns:

the constant described by this entry

kind

int kind()

Returns the reference kind of this method handle (JVMS 4.4.8).

Returns:

the reference kind of this method handle (JVMS 4.4.8)

See Also:

• MethodHandleInfo

reference

MemberRefEntryPREVIEW reference()

Returns the constant pool entry describing the method.

Returns:

the constant pool entry describing the method

asSymbol

DirectMethodHandleDesc asSymbol()

Returns a symbolic descriptor for this method handle.

Returns:

a symbolic descriptor for this method handle