org.fusesource.common.util
Class Objects

java.lang.Object
  org.fusesource.common.util.Objects

public class Objects
extends java.lang.Object

Some helper classes for objects comparing and equality

Constructor Summary

Objects()

Method Summary

static int	compare(java.lang.Comparable a, java.lang.Comparable b)
static <T extends java.lang.Comparable<T>> int	compare(java.util.List<T> a, java.util.List<T> b)
static boolean	equal(java.lang.Object a, java.lang.Object b)
static int	hashCode(java.lang.Object... objects) A helper class to create nice hash codes using a similar algorithm to Josh Bloch's Effective Java book
static void	notNull(java.lang.Object value, java.lang.String name) Asserts whether the value is not null

Methods inherited from class java.lang.Object

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

Constructor Detail

Objects

public Objects()

Method Detail

hashCode

public static int hashCode(java.lang.Object... objects)

A helper class to create nice hash codes using a similar algorithm to Josh Bloch's Effective Java book

equal

public static boolean equal(java.lang.Object a,
                            java.lang.Object b)

compare

public static int compare(java.lang.Comparable a,
                          java.lang.Comparable b)

compare

public static <T extends java.lang.Comparable<T>> int compare(java.util.List<T> a,
                                                              java.util.List<T> b)

notNull

public static void notNull(java.lang.Object value,
                           java.lang.String name)

Asserts whether the value is not null

Parameters:

value - the value to test

name - the key that resolved the value

Throws:

java.lang.IllegalArgumentException - is thrown if assertion fails