org.jboss.weld.util

Class Types

java.lang.Object

org.jboss.weld.util.Types

public class Types
extends java.lang.Object

Utility class for Types

Author:

Pete Muir

Field Summary

Fields

Modifier and Type	Field and Description
static java.util.function.Function<java.lang.reflect.Type,java.lang.Class<?>>	TYPE_TO_CLASS_FUNCTION

Method Summary

Modifier and Type	Method and Description
static java.lang.Class<?>	boxedClass(java.lang.Class<?> type)
static java.lang.reflect.Type	boxedType(java.lang.reflect.Type type) Gets the boxed type of a class
static <C extends java.lang.Class<?>> java.util.Map<java.lang.String,C>	buildClassNameMap(java.lang.Iterable<C> set) Builds (class name -> class) map for given classes.
static boolean	containsUnresolvedTypeVariableOrWildcard(java.lang.reflect.Type type)
static java.lang.reflect.Type	getArrayComponentType(java.lang.reflect.Type type) Determines the component type for a given array type.
static java.lang.reflect.Type	getCanonicalType(java.lang.Class<?> clazz) Returns a canonical type for a given class.
static java.lang.reflect.Type	getCanonicalType(java.lang.reflect.Type type)
static java.util.Set<java.lang.Class<?>>	getRawTypes(java.util.Set<java.lang.reflect.Type> types)
static java.lang.Class<?>[]	getRawTypes(java.lang.reflect.Type[] types)
static java.lang.String	getTypeId(java.lang.reflect.Type type)
static boolean	isActualType(java.lang.reflect.Type type) Determines whether the given type is an actual type.
static boolean	isArray(java.lang.reflect.Type type) Determines whether the given type is an array type.
static boolean	isArrayOfUnboundedTypeVariablesOrObjects(java.lang.reflect.Type[] types) Determines whether the given array only contains unbounded type variables or Object.class.
static boolean	isRawGenericType(java.lang.reflect.Type type)

Methods inherited from class java.lang.Object

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

Field Detail

TYPE_TO_CLASS_FUNCTION

public static final java.util.function.Function<java.lang.reflect.Type,java.lang.Class<?>> TYPE_TO_CLASS_FUNCTION

Method Detail

boxedType

public static java.lang.reflect.Type boxedType(java.lang.reflect.Type type)

Gets the boxed type of a class

Parameters:

type - The type

Returns:

The boxed type

boxedClass

public static java.lang.Class<?> boxedClass(java.lang.Class<?> type)

getTypeId

public static java.lang.String getTypeId(java.lang.reflect.Type type)

getCanonicalType

public static java.lang.reflect.Type getCanonicalType(java.lang.Class<?> clazz)

Returns a canonical type for a given class. If the class is a raw type of a parameterized class, the matching ParameterizedType (with unresolved type variables) is resolved. If the class is an array then the component type of the array is canonicalized Otherwise, the class is returned.

Returns:

getCanonicalType

public static java.lang.reflect.Type getCanonicalType(java.lang.reflect.Type type)

Parameters:

type -

Returns:

containsUnresolvedTypeVariableOrWildcard

public static boolean containsUnresolvedTypeVariableOrWildcard(java.lang.reflect.Type type)

getRawTypes

public static java.util.Set<java.lang.Class<?>> getRawTypes(java.util.Set<java.lang.reflect.Type> types)

getRawTypes

public static java.lang.Class<?>[] getRawTypes(java.lang.reflect.Type[] types)

buildClassNameMap

public static <C extends java.lang.Class<?>> java.util.Map<java.lang.String,C> buildClassNameMap(java.lang.Iterable<C> set)

Builds (class name -> class) map for given classes.

isActualType

public static boolean isActualType(java.lang.reflect.Type type)

Determines whether the given type is an actual type. A type is considered actual if it is a raw type, a parameterized type or an array type.

Parameters:

type - the given type

Returns:

true if and only if the given type is an actual type

isArray

public static boolean isArray(java.lang.reflect.Type type)

Determines whether the given type is an array type.

Parameters:

type - the given type

Returns:

true if the given type is a subclass of java.lang.Class or implements GenericArrayType

getArrayComponentType

public static java.lang.reflect.Type getArrayComponentType(java.lang.reflect.Type type)

Determines the component type for a given array type.

Parameters:

type - the given array type

Returns:

the component type of a given array type

isArrayOfUnboundedTypeVariablesOrObjects

public static boolean isArrayOfUnboundedTypeVariablesOrObjects(java.lang.reflect.Type[] types)

Determines whether the given array only contains unbounded type variables or Object.class.

Parameters:

types - the given array of types

Returns:

true if and only if the given array only contains unbounded type variables or Object.class

isRawGenericType

public static boolean isRawGenericType(java.lang.reflect.Type type)