Package org.aksw.commons.beans.model

Enum Class MethodHandleLookup

java.lang.Object

java.lang.Enum<MethodHandleLookup>

org.aksw.commons.beans.model.MethodHandleLookup

All Implemented Interfaces:

Serializable, Comparable<MethodHandleLookup>, Constable

public enum MethodHandleLookup
extends Enum<MethodHandleLookup>

Copy/paste from https://github.com/spring-projects/spring-data-commons/blob/2.1.8.RELEASE/src/main/java/org/springframework/data/projection/DefaultMethodInvokingMethodInterceptor.java

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
ENCAPSULATED	Encapsulated MethodHandle lookup working on Java 9.
FALLBACK	Fallback MethodHandle lookup using public lookup.
OPEN	Open (via reflection construction of MethodHandles.Lookup) method handle lookup.

Method Summary

Modifier and Type	Method	Description
static MethodHandleLookup	getMethodHandleLookup()	Obtain the first available MethodHandleLookup.
abstract boolean	isAvailable()
abstract MethodHandle	lookup(Method method)	Lookup a MethodHandle given Method to look up.
static MethodHandleLookup	valueOf(String name)	Returns the enum constant of this class with the specified name.
static MethodHandleLookup[]	values()	Returns an array containing the constants of this enum class, 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 Details

ENCAPSULATED

public static final MethodHandleLookup ENCAPSULATED

Encapsulated MethodHandle lookup working on Java 9.

OPEN

public static final MethodHandleLookup OPEN

Open (via reflection construction of MethodHandles.Lookup) method handle lookup. Works with Java 8 and with Java 9 permitting illegal access.

FALLBACK

public static final MethodHandleLookup FALLBACK

Fallback MethodHandle lookup using public lookup.

Since:

2.1

Method Details

values

public static MethodHandleLookup[] values()

Returns an array containing the constants of this enum class, in the order they are declared.

Returns:

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

valueOf

public static MethodHandleLookup valueOf(String name)

Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (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 class has no constant with the specified name

NullPointerException - if the argument is null

lookup

public abstract MethodHandle lookup(Method method)
                             throws ReflectiveOperationException

Lookup a MethodHandle given Method to look up.

Parameters:

method - must not be null.

Returns:

the method handle.

Throws:

ReflectiveOperationException

isAvailable

public abstract boolean isAvailable()

Returns:

true if the lookup is available.

getMethodHandleLookup

public static MethodHandleLookup getMethodHandleLookup()

Obtain the first available MethodHandleLookup.

Returns:

the MethodHandleLookup

Throws:

IllegalStateException - if no MethodHandleLookup is available.