|
Runtime | |||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
public interface INullObject
A specification of classes that implement the Null Object pattern.
Implementors of this interface have a unique instance that represents a
pointer-safe null
. The interpretation of null
may vary; it may mean absence of a value, invalid value, etc.
API clients should not implement this interface.
Method Summary | |
---|---|
boolean |
isNull()
Queries whether this is the null instance of a
given implementation class. |
Method Detail |
---|
boolean isNull()
this
is the null
instance of a
given implementation class. The null
instance must be unique.
true
if I am the special "null" instance;
false
, otherwise
|
Runtime | |||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
Guidelines for using Eclipse APIs.
Copyright (c) IBM Corp., Borland Software Corp., and others 2005,2006. All rights reserved.