net.openhft.chronicle.core.util

Enum GenericReflection

java.lang.Object

java.lang.Enum<GenericReflection>

net.openhft.chronicle.core.util.GenericReflection

All Implemented Interfaces:

Serializable, Comparable<GenericReflection>

public enum GenericReflection
extends Enum<GenericReflection>

Provides utility methods for reflective operations on generic types.

This enum serves as a utility class for obtaining generic type information of methods and classes at runtime. This is especially useful for reflective operations that deal with generic types, as Java utilizes type erasure.

Note: This is an enum with a single instance (a singleton), but used purely as a namespace for utility methods, and cannot be instantiated.

Method Summary

Modifier and Type	Method and Description
static Class<?>	erase(Type type) Obtains the raw type representation of the specified generic type.
static Set<Type>	getMethodReturnTypes(Type type) Obtains the return types of all the methods in the specified type.
static Type[]	getParameterTypes(Method method, Type type) Obtains the parameter types of the specified method with generic type information.
static Type	getReturnType(Method method, Type type) Obtains the return type of the specified method as defined by a class or interface.
static GenericReflection	valueOf(String name) Returns the enum constant of this type with the specified name.
static GenericReflection[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Method Detail

values

public static GenericReflection[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (GenericReflection c : GenericReflection.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static GenericReflection valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

getMethodReturnTypes

public static Set<Type> getMethodReturnTypes(Type type)

Obtains the return types of all the methods in the specified type.

Parameters:

type - the Type to scan for methods.

Returns:

a set of Type representing the return types of methods found in the specified type.

Throws:

UnsupportedOperationException - if the provided type is not a Class or ParameterizedType.

getReturnType

public static Type getReturnType(Method method,
                                 Type type)

Obtains the return type of the specified method as defined by a class or interface.

Parameters:

method - the Method to lookup.

type - the Type in which to look for the method's definition.

Returns:

the Type representing the return type of the method.

getParameterTypes

public static Type[] getParameterTypes(Method method,
                                       Type type)

Obtains the parameter types of the specified method with generic type information.

Parameters:

method - the Method to lookup.

type - the Type in which to look for the method's definition.

Returns:

an array of Type representing the parameter types of the method.

erase

public static Class<?> erase(Type type)

Obtains the raw type representation of the specified generic type. If the type is already raw or if it's a type variable, the method returns the erasure of the type.

Parameters:

type - the Type to erase.

Returns:

the raw Class representation of the specified type.