com.google.common.reflect

Class Types

java.lang.Object

com.google.common.reflect.Types

final class Types
extends java.lang.Object

Utilities for working with Type.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
private static class	Types.ClassOwnership Decides what owner type to use for constructing ParameterizedType from a raw class.
private static class	Types.GenericArrayTypeImpl
(package private) static class	Types.JavaVersion
(package private) static class	Types.NativeTypeVariableEquals<X> Per https://code.google.com/p/guava-libraries/issues/detail?id=1635, In JDK 1.7.0_51-b13, TypeVariableImpl.equals() is changed to no longer be equal to custom TypeVariable implementations.
private static class	Types.ParameterizedTypeImpl
private static class	Types.TypeVariableImpl<D extends java.lang.reflect.GenericDeclaration>
private static class	Types.TypeVariableInvocationHandler Invocation handler to work around a compatibility problem between Java 7 and Java 8.
(package private) static class	Types.WildcardTypeImpl

Field Summary

Fields

Modifier and Type	Field and Description
private static Joiner	COMMA_JOINER
private static Function<java.lang.reflect.Type,java.lang.String>	TYPE_NAME Class#toString without the "class " and "interface " prefixes

Constructor Summary

Constructors

Modifier	Constructor and Description
private	Types()

Method Summary

Modifier and Type	Method and Description
private static void	disallowPrimitiveType(java.lang.reflect.Type[] types, java.lang.String usedAs)
private static java.lang.Iterable<java.lang.reflect.Type>	filterUpperBounds(java.lang.Iterable<java.lang.reflect.Type> bounds)
(package private) static java.lang.Class<?>	getArrayClass(java.lang.Class<?> componentType) Returns the Class object of arrays with componentType.
(package private) static java.lang.reflect.Type	getComponentType(java.lang.reflect.Type type)
(package private) static java.lang.reflect.Type	newArrayType(java.lang.reflect.Type componentType) Returns the array type of componentType.
(package private) static <D extends java.lang.reflect.GenericDeclaration> java.lang.reflect.TypeVariable<D>	newArtificialTypeVariable(D declaration, java.lang.String name, java.lang.reflect.Type... bounds) Returns a new TypeVariable that belongs to declaration with name and bounds.
(package private) static java.lang.reflect.ParameterizedType	newParameterizedType(java.lang.Class<?> rawType, java.lang.reflect.Type... arguments) Returns a type where rawType is parameterized by arguments.
(package private) static java.lang.reflect.ParameterizedType	newParameterizedTypeWithOwner(java.lang.reflect.Type ownerType, java.lang.Class<?> rawType, java.lang.reflect.Type... arguments) Returns a type where rawType is parameterized by arguments and is owned by ownerType.
private static <D extends java.lang.reflect.GenericDeclaration> java.lang.reflect.TypeVariable<D>	newTypeVariableImpl(D genericDeclaration, java.lang.String name, java.lang.reflect.Type[] bounds)
(package private) static java.lang.reflect.WildcardType	subtypeOf(java.lang.reflect.Type upperBound) Returns a new WildcardType with upperBound.
private static java.lang.reflect.Type	subtypeOfComponentType(java.lang.reflect.Type[] bounds) Returns ? extends X if any of bounds is a subtype of X[]; or null otherwise.
(package private) static java.lang.reflect.WildcardType	supertypeOf(java.lang.reflect.Type lowerBound) Returns a new WildcardType with lowerBound.
private static java.lang.reflect.Type[]	toArray(java.util.Collection<java.lang.reflect.Type> types)
(package private) static java.lang.String	toString(java.lang.reflect.Type type) Returns human readable string representation of type.

Methods inherited from class java.lang.Object

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

Field Detail

TYPE_NAME

private static final Function<java.lang.reflect.Type,java.lang.String> TYPE_NAME

Class#toString without the "class " and "interface " prefixes

COMMA_JOINER

private static final Joiner COMMA_JOINER

Constructor Detail

Types

private Types()

Method Detail

newArrayType

static java.lang.reflect.Type newArrayType(java.lang.reflect.Type componentType)

Returns the array type of componentType.

newParameterizedTypeWithOwner

static java.lang.reflect.ParameterizedType newParameterizedTypeWithOwner(@Nullable
                                                                         java.lang.reflect.Type ownerType,
                                                                         java.lang.Class<?> rawType,
                                                                         java.lang.reflect.Type... arguments)

Returns a type where rawType is parameterized by arguments and is owned by ownerType.

newParameterizedType

static java.lang.reflect.ParameterizedType newParameterizedType(java.lang.Class<?> rawType,
                                                                java.lang.reflect.Type... arguments)

Returns a type where rawType is parameterized by arguments.

newArtificialTypeVariable

static <D extends java.lang.reflect.GenericDeclaration> java.lang.reflect.TypeVariable<D> newArtificialTypeVariable(D declaration,
                                                                                                                    java.lang.String name,
                                                                                                                    java.lang.reflect.Type... bounds)

Returns a new TypeVariable that belongs to declaration with name and bounds.

subtypeOf

static java.lang.reflect.WildcardType subtypeOf(java.lang.reflect.Type upperBound)

Returns a new WildcardType with upperBound.

supertypeOf

static java.lang.reflect.WildcardType supertypeOf(java.lang.reflect.Type lowerBound)

Returns a new WildcardType with lowerBound.

toString

static java.lang.String toString(java.lang.reflect.Type type)

Returns human readable string representation of type.

• For array type Foo[], "com.mypackage.Foo[]" are returned.
• For any class, theClass.getName() are returned.
• For all other types, type.toString() are returned.

getComponentType

@Nullable
static java.lang.reflect.Type getComponentType(java.lang.reflect.Type type)

subtypeOfComponentType

@Nullable
private static java.lang.reflect.Type subtypeOfComponentType(java.lang.reflect.Type[] bounds)

Returns ? extends X if any of bounds is a subtype of X[]; or null otherwise.

newTypeVariableImpl

private static <D extends java.lang.reflect.GenericDeclaration> java.lang.reflect.TypeVariable<D> newTypeVariableImpl(D genericDeclaration,
                                                                                                                      java.lang.String name,
                                                                                                                      java.lang.reflect.Type[] bounds)

toArray

private static java.lang.reflect.Type[] toArray(java.util.Collection<java.lang.reflect.Type> types)

filterUpperBounds

private static java.lang.Iterable<java.lang.reflect.Type> filterUpperBounds(java.lang.Iterable<java.lang.reflect.Type> bounds)

disallowPrimitiveType

private static void disallowPrimitiveType(java.lang.reflect.Type[] types,
                                          java.lang.String usedAs)

getArrayClass

static java.lang.Class<?> getArrayClass(java.lang.Class<?> componentType)

Returns the Class object of arrays with componentType.