cn.trinea.android.common.util

Class ObjectUtils

java.lang.Object

cn.trinea.android.common.util.ObjectUtils

public class ObjectUtils
extends java.lang.Object

Object Utils

Author:

Trinea 2011-10-24

Constructor Summary

Constructors

Constructor and Description
ObjectUtils()

Method Summary

Methods

Modifier and Type	Method and Description
static <V> int	compare(V v1, V v2) compare two object About result if v1 > v2, return 1 if v1 = v2, return 0 if v1 < v2, return -1 About rule if v1 is null, v2 is null, then return 0 if v1 is null, v2 is not null, then return -1 if v1 is not null, v2 is null, then return 1 return v1.
static boolean	isEquals(java.lang.Object actual, java.lang.Object expected) compare two object
static java.lang.Integer[]	transformIntArray(int[] source) convert int array to Integer array
static int[]	transformIntArray(java.lang.Integer[] source) convert Integer array to int array
static java.lang.Long[]	transformLongArray(long[] source) convert long array to Long array
static long[]	transformLongArray(java.lang.Long[] source) convert Long array to long array

Methods inherited from class java.lang.Object

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

Constructor Detail

ObjectUtils

public ObjectUtils()

Method Detail

isEquals

public static boolean isEquals(java.lang.Object actual,
               java.lang.Object expected)

compare two object

Parameters:

actual -

expected -

Returns:

• if both are null, return true
• return actual.Object.equals(Object)

transformLongArray

public static java.lang.Long[] transformLongArray(long[] source)

convert long array to Long array

Parameters:

source -

Returns:

transformLongArray

public static long[] transformLongArray(java.lang.Long[] source)

convert Long array to long array

Parameters:

source -

Returns:

transformIntArray

public static java.lang.Integer[] transformIntArray(int[] source)

convert int array to Integer array

Parameters:

source -

Returns:

transformIntArray

public static int[] transformIntArray(java.lang.Integer[] source)

convert Integer array to int array

Parameters:

source -

Returns:

compare

public static <V> int compare(V v1,
              V v2)

compare two object

About result
• if v1 > v2, return 1
• if v1 = v2, return 0
• if v1 < v2, return -1

About rule
• if v1 is null, v2 is null, then return 0
• if v1 is null, v2 is not null, then return -1
• if v1 is not null, v2 is null, then return 1
• return v1.Comparable.compareTo(Object)

Parameters:

v1 -

v2 -

Returns: