ma.glasnost.orika.util

Class ClassHelper

java.lang.Object

ma.glasnost.orika.util.ClassHelper

public class ClassHelper
extends Object

Author:

Eduard Drenth at VectorPrint.nl

Method Summary

Modifier and Type	Method and Description
static <T> Class<?>	findParameterClass(int paramNum, Class<? extends T> subclass, Class<? extends T> classWithParameter) find the runtime class for a class parameter.
static <T> List<Class<?>>	findParameterClasses(Class<? extends T> subclass, Class<? extends T> classWithParameter) find the runtime classes of the parameters of a class or interface.
static Class<?>	getClass(Type type) when possible return the class of the type argument, otherwise null
static <T> Type	getGenericSuperType(Class<? extends T> subclass, Class<? extends T> classWithParameter) returns either the generic superclass or a generic interface, but only when it is assignable from the typed classWithParameter argument

Methods inherited from class java.lang.Object

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

Method Detail

findParameterClass

public static <T> Class<?> findParameterClass(int paramNum,
                                              Class<? extends T> subclass,
                                              Class<? extends T> classWithParameter)

find the runtime class for a class parameter. Calls findParameterClasses(java.lang.Class, java.lang.Class)

Parameters:

subclass - the subclass of the generic class whose parameter class we want to know

classWithParameter - the class that contains the parameter whose class we are looking for

Returns:

findParameterClasses

public static <T> List<Class<?>> findParameterClasses(Class<? extends T> subclass,
                                                      Class<? extends T> classWithParameter)

find the runtime classes of the parameters of a class or interface. The strategy is to visit the subclass and its parent classes to find the classes of the classWithParameters

Parameters:

subclass - the subclass of the generic class whose parameter classes we want to know

classWithParameter - the class that contains the parameter whose class we are looking for

Returns:

a List of java class for the class parameters, or null

getGenericSuperType

public static <T> Type getGenericSuperType(Class<? extends T> subclass,
                                           Class<? extends T> classWithParameter)

returns either the generic superclass or a generic interface, but only when it is assignable from the typed classWithParameter argument

Type Parameters:

T -

Parameters:

subclass -

classWithParameter -

Returns:

getClass

public static Class<?> getClass(Type type)

when possible return the class of the type argument, otherwise null

Parameters:

type -

Returns: