Package org.apache.commons.lang3.reflect

Class InheritanceUtils

java.lang.Object

org.apache.commons.lang3.reflect.InheritanceUtils

public class InheritanceUtils
extends Object

Utility methods focusing on inheritance.

Since:

3.2

Constructor Summary

Constructors

Constructor	Description
InheritanceUtils()	Deprecated. TODO Make private in 4.0.

Method Summary

Modifier and Type	Method	Description
static int	distance(Class<?> child, Class<?> parent)	Returns the number of inheritance hops between two classes.

Methods inherited from class java.lang.Object

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

Constructor Details

InheritanceUtils

@Deprecated
public InheritanceUtils()

Deprecated.

TODO Make private in 4.0.

InheritanceUtils instances should NOT be constructed in standard programming. Instead, the class should be used as MethodUtils.getAccessibleMethod(method).

This constructor is public to permit tools that require a JavaBean instance to operate.

Method Details

distance

public static int distance(Class<?> child,
 Class<?> parent)

Returns the number of inheritance hops between two classes.

Parameters:

child - the child class, may be null

parent - the parent class, may be null

Returns:

the number of generations between the child and parent; 0 if the same class; -1 if the classes are not related as child and parent (includes where either class is null)

Since:

3.2