org.apache.bval.util

Class ObjectUtils

java.lang.Object

org.apache.bval.util.ObjectUtils

public final class ObjectUtils
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
static Annotation[]	EMPTY_ANNOTATION_ARRAY
static Class<?>[]	EMPTY_CLASS_ARRAY
static String[]	EMPTY_STRING_ARRAY

Method Summary

Modifier and Type	Method and Description
static <T> T[]	arrayAdd(T[] array, T objectToAdd)
static boolean	arrayContains(Object[] array, Object objectToFind) Checks if the object is in the given array.
static <T> T	defaultIfNull(T object, T defaultValue) Returns a default value if the object passed is null.
static boolean	isEmpty(Object[] array)
static <T> boolean	isNotEmpty(T[] array)

Methods inherited from class java.lang.Object

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

Field Detail

EMPTY_CLASS_ARRAY

public static final Class<?>[] EMPTY_CLASS_ARRAY

EMPTY_STRING_ARRAY

public static final String[] EMPTY_STRING_ARRAY

EMPTY_ANNOTATION_ARRAY

public static final Annotation[] EMPTY_ANNOTATION_ARRAY

Method Detail

defaultIfNull

public static <T> T defaultIfNull(T object,
                                  T defaultValue)

Returns a default value if the object passed is null.

 ObjectUtils.defaultIfNull(null, null)      = null
 ObjectUtils.defaultIfNull(null, "")        = ""
 ObjectUtils.defaultIfNull(null, "zz")      = "zz"
 ObjectUtils.defaultIfNull("abc", *)        = "abc"
 ObjectUtils.defaultIfNull(Boolean.TRUE, *) = Boolean.TRUE
 

Type Parameters:

T - the type of the object

Parameters:

object - the Object to test, may be null

defaultValue - the default value to return, may be null

Returns:

object if it is not null, defaultValue otherwise

isNotEmpty

public static <T> boolean isNotEmpty(T[] array)

isEmpty

public static boolean isEmpty(Object[] array)

arrayContains

public static boolean arrayContains(Object[] array,
                                    Object objectToFind)

Checks if the object is in the given array.

The method returns false if a null array is passed in.

Parameters:

array - the array to search through

objectToFind - the object to find

Returns:

true if the array contains the object

arrayAdd

public static <T> T[] arrayAdd(T[] array,
                               T objectToAdd)