edu.neu.ccs.demeterf.lib
Class None<X>

java.lang.Object
  edu.neu.ccs.demeterf.lib.Option<X>
      edu.neu.ccs.demeterf.lib.None<X>

public class None<X>
extends Option<X>

Represents Nothing... i.e., when an optional part is missing

Constructor Summary

None()

Method Summary

<Y> Option<Y>	apply(List.Map<X,Y> m) Apply a function to the contained object in this Option if it exists
boolean	equals(java.lang.Object o)
X	inner() Get the inner instance that this Option contains
boolean	isSome() Does this Option exist?
java.lang.String	toString()

Methods inherited from class edu.neu.ccs.demeterf.lib.Option

none, some

Methods inherited from class java.lang.Object

getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

None

public None()

Method Detail

isSome

public boolean isSome()

Description copied from class: Option

Does this Option exist?

Specified by:

isSome in class Option<X>

inner

public X inner()

Description copied from class: Option

Get the inner instance that this Option contains

Specified by:

inner in class Option<X>

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

apply

public <Y> Option<Y> apply(List.Map<X,Y> m)

Description copied from class: Option

Apply a function to the contained object in this Option if it exists

Specified by:

apply in class Option<X>