Module java.base

Package java.lang.constant

Enum DirectMethodHandleDesc.Kind

java.lang.Object

java.lang.Enum<DirectMethodHandleDesc.Kind>

java.lang.constant.DirectMethodHandleDesc.Kind

All Implemented Interfaces:

java.io.Serializable, Comparable<DirectMethodHandleDesc.Kind>, Constable

Enclosing interface:

DirectMethodHandleDesc

public static enum DirectMethodHandleDesc.Kind
extends Enum<DirectMethodHandleDesc.Kind>

Kinds of method handles that can be described with DirectMethodHandleDesc.

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

Enum Constant Summary

Enum Constants

Enum Constant	Description
CONSTRUCTOR	A method handle for a constructor
GETTER	A method handle for a read accessor for an instance field
INTERFACE_SPECIAL	A method handle for an interface method invoked as with invokespecial
INTERFACE_STATIC	A method handle for a method invoked as with invokestatic
INTERFACE_VIRTUAL	A method handle for a method invoked as with invokeinterface
SETTER	A method handle for a write accessor for an instance field
SPECIAL	A method handle for a method invoked as with invokespecial
STATIC	A method handle for a method invoked as with invokestatic
STATIC_GETTER	A method handle for a read accessor for a static field
STATIC_SETTER	A method handle for a write accessor for a static field
VIRTUAL	A method handle for a method invoked as with invokevirtual

Field Summary

Fields

Modifier and Type	Field	Description
boolean	isInterface	Is this an interface
int	refKind	The corresponding refKind value for this kind of method handle, as defined by MethodHandleInfo

Method Summary

Modifier and Type	Method	Description
static DirectMethodHandleDesc.Kind	valueOf(int refKind)	Find the enumeration member with the given refKind field.
static DirectMethodHandleDesc.Kind	valueOf(int refKind, boolean isInterface)	Find the enumeration member with the given the refKind and isInterface arguments.
static DirectMethodHandleDesc.Kind	valueOf(String name)	Returns the enum constant of this type with the specified name.
static DirectMethodHandleDesc.Kind[]	values()	Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, describeConstable, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

STATIC

public static final DirectMethodHandleDesc.Kind STATIC

A method handle for a method invoked as with invokestatic

INTERFACE_STATIC

public static final DirectMethodHandleDesc.Kind INTERFACE_STATIC

A method handle for a method invoked as with invokestatic

VIRTUAL

public static final DirectMethodHandleDesc.Kind VIRTUAL

A method handle for a method invoked as with invokevirtual

INTERFACE_VIRTUAL

public static final DirectMethodHandleDesc.Kind INTERFACE_VIRTUAL

A method handle for a method invoked as with invokeinterface

SPECIAL

public static final DirectMethodHandleDesc.Kind SPECIAL

A method handle for a method invoked as with invokespecial

INTERFACE_SPECIAL

public static final DirectMethodHandleDesc.Kind INTERFACE_SPECIAL

A method handle for an interface method invoked as with invokespecial

CONSTRUCTOR

public static final DirectMethodHandleDesc.Kind CONSTRUCTOR

A method handle for a constructor

GETTER

public static final DirectMethodHandleDesc.Kind GETTER

A method handle for a read accessor for an instance field

SETTER

public static final DirectMethodHandleDesc.Kind SETTER

A method handle for a write accessor for an instance field

STATIC_GETTER

public static final DirectMethodHandleDesc.Kind STATIC_GETTER

A method handle for a read accessor for a static field

STATIC_SETTER

public static final DirectMethodHandleDesc.Kind STATIC_SETTER

A method handle for a write accessor for a static field

Field Detail

refKind

public final int refKind

The corresponding refKind value for this kind of method handle, as defined by MethodHandleInfo

isInterface

public final boolean isInterface

Is this an interface

Method Detail

values

public static DirectMethodHandleDesc.Kind[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (DirectMethodHandleDesc.Kind c : DirectMethodHandleDesc.Kind.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static DirectMethodHandleDesc.Kind valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

valueOf

public static DirectMethodHandleDesc.Kind valueOf(int refKind)

Find the enumeration member with the given refKind field. Behaves as if valueOf(refKind, false). As a special case, if refKind is REF_invokeInterface (9) then the isInterface field will be true.

Parameters:

refKind - refKind of desired member

Returns:

the matching enumeration member

Throws:

IllegalArgumentException - if there is no such member

valueOf

public static DirectMethodHandleDesc.Kind valueOf(int refKind,
                                                  boolean isInterface)

Find the enumeration member with the given the refKind and isInterface arguments. For most values of refKind there is an exact match regardless of the value of isInterface. These are:

• REF_invokeVirtual which matches to VIRTUAL
• REF_invokeInterface which matches to INTERFACE_VIRTUAL
• REF_newInvokeSpecial which matches to CONSTRUCTOR
• REF_getField which matches to GETTER
• REF_putField which matches to SETTER
• REF_getStatic which matches to STATIC_GETTER
• REF_putStatic which matches to STATIC_SETTER

As for the rest, the returned kind will depend on the value (false or true accordingly) of isInterface:

• REF_invokeStatic which matches to STATIC or INTERFACE_STATIC
• REF_invokeSpecial which matches to SPECIAL or INTERFACE_SPECIAL

Parameters:

refKind - refKind of desired member

isInterface - whether desired member is for interface methods

Returns:

the matching enumeration member

Throws:

IllegalArgumentException - if there is no such member