Package org.elasticsearch.common.inject.internal

Class MoreTypes

java.lang.Object

org.elasticsearch.common.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

Nested Classes

Modifier and Type	Class	Description
static class	MoreTypes.GenericArrayTypeImpl
static class	MoreTypes.MemberImpl	We cannot serialize the built-in Java member classes, which prevents us from using Members in our exception types.
static class	MoreTypes.ParameterizedTypeImpl
static class	MoreTypes.WildcardTypeImpl	The WildcardType interface supports multiple upper bounds and multiple lower bounds.

Field Summary

Fields

Modifier and Type	Field	Description
static Type[]	EMPTY_TYPE_ARRAY

Method Summary

Modifier and Type	Method	Description
static Type	canonicalize(Type type)	Returns a type that is functionally equal but not necessarily equal according to Object.equals().
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 int	hashCode(Type type)	Returns the hashCode of type.
static <T> TypeLiteral<T>	makeKeySafe(TypeLiteral<T> type)	Returns an equivalent type that's safe for use in a key.
static String	memberKey(Member member)
static Class<? extends Member>	memberType(Member member)	Returns Field.class, Method.class or Constructor.class.
static Type	resolveTypeVariable(Type type, Class<?> rawType, TypeVariable unknown)
static String	toString(Member member)	Formats a member as concise string, such as java.util.ArrayList.size, java.util.ArrayList<init>() or java.util.List.remove().
static String	toString(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

makeKeySafe

public static <T> TypeLiteral<T> makeKeySafe(TypeLiteral<T> type)

Returns an equivalent type that's safe for use in a key. The returned type will be free of primitive types. Type literals of primitives will return the corresponding wrapper types.

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().

getRawType

public static Class<?> getRawType(Type type)

equals

public static boolean equals(Type a,
                             Type b)

Returns true if a and b are equal.

hashCode

public static int hashCode(Type type)

Returns the hashCode of type.

toString

public static String toString(Type type)

memberType

public static Class<? extends Member> memberType(Member member)

Returns Field.class, Method.class or Constructor.class.

toString

public static String toString(Member member)

Formats a member as concise string, such as java.util.ArrayList.size, java.util.ArrayList<init>() or java.util.List.remove().

memberKey

public static String memberKey(Member member)

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)