info.aduna.lang
Class ObjectUtil

java.lang.Object
  info.aduna.lang.ObjectUtil

public class ObjectUtil
extends Object

Generic utility methods related to objects.

Author:

Arjohn Kampman

Constructor Summary

ObjectUtil()

Method Summary

static boolean	nullEquals(Object o1, Object o2) Compares two objects or null references.
static int	nullHashCode(Object o) Returns the hash code of the supplied object, or 0 if a null reference is supplied.

Methods inherited from class java.lang.Object

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

Constructor Detail

ObjectUtil

public ObjectUtil()

Method Detail

nullEquals

public static boolean nullEquals(Object o1,
                                 Object o2)

Compares two objects or null references.

Parameters:

o1 - The first object.

o2 - The second object

Returns:

true if both objects are null, if the object references are identical, or if the objects are equal according to the Object.equals(java.lang.Object) method of the first object; false in all other situations.

nullHashCode

public static int nullHashCode(Object o)

Returns the hash code of the supplied object, or 0 if a null reference is supplied.

Parameters:

o - An object or null reference.

Returns:

The object's hash code, or 0 if the parameter is null.