com.google.inject.internal
Class MoreTypes

java.lang.Object
  com.google.inject.internal.MoreTypes

public class MoreTypes
extends Object

Static methods for working with types that we aren't publishing in the public Types API.

Author:

jessewilson@google.com (Jesse Wilson)

Nested Class Summary

static class	MoreTypes.GenericArrayTypeImpl
static class	MoreTypes.ParameterizedTypeImpl
static class	MoreTypes.WildcardTypeImpl The WildcardType interface supports multiple upper bounds and multiple lower bounds.

Field Summary

static Type[]

EMPTY_TYPE_ARRAY

Method Summary

static Type	canonicalize(Type type) Returns a type that is functionally equal but not necessarily equal according to Object.equals().
static <T> TypeLiteral<T>	canonicalizeForKey(TypeLiteral<T> typeLiteral) Returns an type that's appropriate for use in a key.
static boolean	equals(Type a, Type b) Returns true if a and b are equal.
static Type	getGenericSupertype(Type type, Class<?> rawType, Class<?> toResolve) Returns the generic supertype for supertype.
static Class<?>	getRawType(Type type)
static Type	resolveTypeVariable(Type type, Class<?> rawType, TypeVariable unknown)
static String	typeToString(Type type)

Methods inherited from class java.lang.Object

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

Field Detail

EMPTY_TYPE_ARRAY

public static final Type[] EMPTY_TYPE_ARRAY

Method Detail

canonicalizeForKey

public static <T> TypeLiteral<T> canonicalizeForKey(TypeLiteral<T> typeLiteral)

Returns an type that's appropriate for use in a key.

If the raw type of typeLiteral is a javax.inject.Provider, this returns a com.google.inject.Provider with the same type parameters.

If the type is a primitive, the corresponding wrapper type will be returned.

Throws:

ConfigurationException - if type contains a type variable

canonicalize

public static Type canonicalize(Type type)

Returns a type that is functionally equal but not necessarily equal according to Object.equals(). The returned type is Serializable.

getRawType

public static Class<?> getRawType(Type type)

equals

public static boolean equals(Type a,
                             Type b)

Returns true if a and b are equal.

typeToString

public static String typeToString(Type type)

getGenericSupertype

public static Type getGenericSupertype(Type type,
                                       Class<?> rawType,
                                       Class<?> toResolve)

Returns the generic supertype for supertype. For example, given a class IntegerSet, the result for when supertype is Set.class is Set<Integer> and the result when the supertype is Collection.class is Collection<Integer>.

resolveTypeVariable

public static Type resolveTypeVariable(Type type,
                                       Class<?> rawType,
                                       TypeVariable unknown)