Class MethodHandles

java.lang.Object

java.lang.invoke.MethodHandles

public abstract class MethodHandles
extends Object

Deprecated

these classes are used internally for Lambda compatibility

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	MethodHandles.Lookup

Constructor Summary

Constructors

Constructor	Description
MethodHandles()

Method Summary

Modifier and Type	Method	Description
static MethodHandle	arrayElementGetter(java.lang.Class<?> a)
static MethodHandle	arrayElementSetter(java.lang.Class<?> a)
static MethodHandle	catchException(MethodHandle a, java.lang.Class<? extends Throwable> b, MethodHandle c)
static MethodHandle	collectArguments(MethodHandle a, int b, MethodHandle c)
static MethodHandle	constant(java.lang.Class<?> a, Object b)
static MethodHandle	dropArguments(MethodHandle a, int b, java.lang.Class<?>... c)
static MethodHandle	dropArguments(MethodHandle a, int b, List<java.lang.Class<?>> c)
static MethodHandle	exactInvoker(MethodType a)
static MethodHandle	explicitCastArguments(MethodHandle a, MethodType b)
static MethodHandle	filterArguments(MethodHandle a, int b, MethodHandle... c)
static MethodHandle	filterReturnValue(MethodHandle a, MethodHandle b)
static MethodHandle	foldArguments(MethodHandle a, MethodHandle b)
static MethodHandle	guardWithTest(MethodHandle a, MethodHandle b, MethodHandle c)
static MethodHandle	identity(java.lang.Class<?> a)
static MethodHandle	insertArguments(MethodHandle a, int b, Object... c)
static MethodHandle	invoker(MethodType a)
static MethodHandles.Lookup	lookup()
static MethodHandle	permuteArguments(MethodHandle a, MethodType b, int... c)
static MethodHandles.Lookup	publicLookup()
static <T> T	reflectAs(java.lang.Class<T> a, MethodHandle b)
static MethodHandle	spreadInvoker(MethodType a, int b)
static MethodHandle	throwException(java.lang.Class<?> a, java.lang.Class<? extends Throwable> b)

Methods inherited from class Object

clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

MethodHandles

public MethodHandles()

Method Details

lookup

public static MethodHandles.Lookup lookup()

publicLookup

public static MethodHandles.Lookup publicLookup()

reflectAs

public static <T> T reflectAs(java.lang.Class<T> a,
 MethodHandle b)

arrayElementGetter

public static MethodHandle arrayElementGetter(java.lang.Class<?> a)
                                       throws IllegalArgumentException

Throws:

IllegalArgumentException

arrayElementSetter

public static MethodHandle arrayElementSetter(java.lang.Class<?> a)
                                       throws IllegalArgumentException

Throws:

IllegalArgumentException

spreadInvoker

public static MethodHandle spreadInvoker(MethodType a,
 int b)

exactInvoker

public static MethodHandle exactInvoker(MethodType a)

invoker

public static MethodHandle invoker(MethodType a)

explicitCastArguments

public static MethodHandle explicitCastArguments(MethodHandle a,
 MethodType b)

permuteArguments

public static MethodHandle permuteArguments(MethodHandle a,
 MethodType b,
 int... c)

constant

public static MethodHandle constant(java.lang.Class<?> a,
 Object b)

identity

public static MethodHandle identity(java.lang.Class<?> a)

insertArguments

public static MethodHandle insertArguments(MethodHandle a,
 int b,
 Object... c)

dropArguments

public static MethodHandle dropArguments(MethodHandle a,
 int b,
 List<java.lang.Class<?>> c)

dropArguments

public static MethodHandle dropArguments(MethodHandle a,
 int b,
 java.lang.Class<?>... c)

filterArguments

public static MethodHandle filterArguments(MethodHandle a,
 int b,
 MethodHandle... c)

collectArguments

public static MethodHandle collectArguments(MethodHandle a,
 int b,
 MethodHandle c)

filterReturnValue

public static MethodHandle filterReturnValue(MethodHandle a,
 MethodHandle b)

foldArguments

public static MethodHandle foldArguments(MethodHandle a,
 MethodHandle b)

guardWithTest

public static MethodHandle guardWithTest(MethodHandle a,
 MethodHandle b,
 MethodHandle c)

catchException

public static MethodHandle catchException(MethodHandle a,
 java.lang.Class<? extends Throwable> b,
 MethodHandle c)

throwException

public static MethodHandle throwException(java.lang.Class<?> a,
 java.lang.Class<? extends Throwable> b)