org.guppy4j

Class Objects

java.lang.Object

org.guppy4j.Objects

public class Objects
extends Object

Static helper methods for objects

Constructor Summary

Constructors

Constructor and Description
Objects()

Method Summary

Modifier and Type	Method and Description
static boolean	bothNullOrEqual(Object o1, Object o2)
static <T> T	castIfInstance(Object o, Class<T> c) Conditional casting, useful for equals() implementations using instanceof
static <T> T	castIfSameClass(Object o, Class<T> c) Conditional casting, useful for typical equals() implementations

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

bothNullOrEqual

public static boolean bothNullOrEqual(Object o1,
                                      Object o2)

castIfSameClass

public static <T> T castIfSameClass(Object o,
                                    Class<T> c)

Conditional casting, useful for typical equals() implementations

Type Parameters:

T - The generic type of the target class

Parameters:

o - The other object

c - The class to check for

Returns:

The object cast as a T, or null if o.getClass() is not c

castIfInstance

public static <T> T castIfInstance(Object o,
                                   Class<T> c)

Conditional casting, useful for equals() implementations using instanceof

Type Parameters:

T - The generic type of the target class

Parameters:

o - The other object

c - The class to check for

Returns:

The object cast as a T, or null if o is not an instance of c