org.incava.ijdk.lang

Class Int

java.lang.Object

org.incava.ijdk.lang.Obj<java.lang.Integer>

org.incava.ijdk.lang.Int

All Implemented Interfaces:

Bool

public class Int
extends Obj<java.lang.Integer>

Extensions to Integer, wrapping a possibly-null Integer with better null checking.

Field Summary

Fields inherited from class org.incava.ijdk.lang.Obj

NULL

Constructor Summary

Constructors

Constructor and Description
Int(java.lang.Integer num) Wraps the given integer, which can be null.
Int(java.lang.String str) Converts the given string to an integer, if it is a valid integer.

Method Summary

Modifier and Type	Method and Description
java.lang.Integer	integer() Returns the wrapped integer.
static Int	of(java.lang.Integer num) Returns an Int (integer) for the number.
static Int	of(java.lang.String str) Returns an Int (integer) for the string.
static java.lang.Integer	toInteger(java.lang.String str) Returns the str as an integer, or null if it is null or is not a valid integer.

Methods inherited from class org.incava.ijdk.lang.Obj

equals, get, hashCode, isEmpty, isFalse, isNotNull, isNull, isTrue, obj, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

Int

public Int(java.lang.String str)

Converts the given string to an integer, if it is a valid integer. Otherwise the wrapped integer will be null.

Parameters:

str - the string to parse for the number; can be null

Int

public Int(java.lang.Integer num)

Wraps the given integer, which can be null.

Parameters:

num - the number to wrap; can be null

Method Detail

of

public static Int of(java.lang.Integer num)

Returns an Int (integer) for the number.

Parameters:

num - the number to wrap; can be null

Returns:

an Int wrapping the given Integer

of

public static Int of(java.lang.String str)

Returns an Int (integer) for the string. If the string is not a valid integer, then the wrapped integer will be null.

Parameters:

str - the string to parse for the number; can be null

Returns:

an Int wrapping the given string, converted to an Integer

toInteger

public static java.lang.Integer toInteger(java.lang.String str)

Returns the str as an integer, or null if it is null or is not a valid integer.

Parameters:

str - the string to parse for the number; can be null

Returns:

an Int wrapping the given string, converted to an Integer

integer

public java.lang.Integer integer()

Returns the wrapped integer.

Returns:

the wrapped integer