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1 package jfun.yan;
2
3 import jfun.yan.factory.Pool;
4
5 final class NilComponent extends Component {
6 public Class  getType() {
7 return void.class;
8 }
9 public boolean isConcrete(){
10 return false;
11 }
12 public Object create(Dependency dep){
13 return null;
14 }
15
16 public Class verify(Dependency dep) {
17 return void.class;
18 }
19 public String toString() {
20 return "null";
21 }
22
23 public final Component singleton(){return this;}
24 public final Component singleton(Pool pool){return this;}
25 public final Component guard(){return this;}
26 public final Component proxy(){
27 return this;
28 }
29 public final Component proxy(Class type){
30 return subsume(type);
31 }
32 private NilComponent(){}
33 static final Component instance = new NilComponent();
34 public boolean isSingleton(){
35 return true;
36 }
37 }
38 |
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Java API By Example, From Geeks To Geeks.