org.jowidgets.util.maybe

Class Some<TYPE>

java.lang.Object

org.jowidgets.util.maybe.Some<TYPE>

All Implemented Interfaces:

IMaybe<TYPE>

public final class Some<TYPE>
extends java.lang.Object
implements IMaybe<TYPE>

Constructor Summary

Constructors

Constructor and Description
Some() Creates a maybe with the value null
Some(TYPE value) Creates a maybe with an value

Method Summary

Methods

Modifier and Type	Method and Description
TYPE	getValue()
TYPE	getValueOrElse(TYPE defaultValue) Gets the value of the maybe, if the maybe is not nothing, else the default is returned
boolean	isNothing()
boolean	isSomething()

Methods inherited from class java.lang.Object

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

Constructor Detail

Some

public Some()

Creates a maybe with the value null

Some

public Some(TYPE value)

Creates a maybe with an value

Parameters:

value - the value, can be null

Method Detail

getValue

public TYPE getValue()

Specified by:

getValue in interface IMaybe<TYPE>

Returns:

The value of the maybe

getValueOrElse

public TYPE getValueOrElse(TYPE defaultValue)

Description copied from interface: IMaybe

Gets the value of the maybe, if the maybe is not nothing, else the default is returned

Specified by:

getValueOrElse in interface IMaybe<TYPE>

Parameters:

defaultValue - the default value

Returns:

the value if the maybe is not nothing and else the default

isNothing

public boolean isNothing()

Specified by:

isNothing in interface IMaybe<TYPE>

Returns:

true if the maybe is nothing, not even undefined Remark: isSomething() == true implies isNothing() == false and vice versa.

isSomething

public boolean isSomething()

Specified by:

isSomething in interface IMaybe<TYPE>

Returns:

true, if the maybe is something. Remark: isSomething() == true implies isNothing() == false and vice versa.