org.codelogger.utils

Class ValueUtils

java.lang.Object

org.codelogger.utils.ValueUtils

public class ValueUtils
extends Object

A useful tools to handle numbers.

Author:

DengDefei

Method Summary

Methods

Modifier and Type	Method and Description
static Boolean	getValue(Boolean booleanValue) Return true if booleanValue is not null and is true.
static Double	getValue(Double value) Returns 0 if given value is null; else returns it self.
static Float	getValue(Float value) Returns 0 if given value is null; else returns it self.
static Integer	getValue(Integer value) Returns 0 if given value is null; else returns it self.
static Long	getValue(Long value) Returns 0 if given value is null; else returns it self.
static Number	getValue(Number value) Returns 0 if given value is null; else returns it self.
static String	toString(long source, int size) Returns a string by given value. Fill "0" in the head of given source if given source value length below given size; string of given source value otherwise.

Methods inherited from class java.lang.Object

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

Method Detail

getValue

public static Long getValue(Long value)

Returns 0 if given value is null; else returns it self.

Parameters:

value - value to be test.

Returns:

0 if given value is null; else returns it self.

getValue

public static Integer getValue(Integer value)

Returns 0 if given value is null; else returns it self.

Parameters:

value - value to be test.

Returns:

0 if given value is null; else returns it self.

getValue

public static Double getValue(Double value)

Returns 0 if given value is null; else returns it self.

Parameters:

value - value to be test.

Returns:

0 if given value is null; else returns it self.

getValue

public static Float getValue(Float value)

Returns 0 if given value is null; else returns it self.

Parameters:

value - value to be test.

Returns:

0 if given value is null; else returns it self.

getValue

public static Number getValue(Number value)

Returns 0 if given value is null; else returns it self.

Parameters:

value - value to be test.

Returns:

0 if given value is null; else returns it self.

toString

public static String toString(long source,
              int size)

Returns a string by given value.
Fill "0" in the head of given source if given source value length below given size; string of given source value otherwise.

e.g:
source:123,size:4 ==> "0123".
source:12345,size:4 ==> "12345".

Parameters:

source - the source value.

size - the display string size.

Returns:

a string value to display given source..

getValue

public static Boolean getValue(Boolean booleanValue)

Return true if booleanValue is not null and is true.

Parameters:

booleanValue - boolean value to judge.

Returns:

if booleanValue is true.