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15 package jfun.yan;
16
17 import jfun.yan.function.Signature;
18
19
25 final class UseArgumentComponent<T> extends Component<T> {
26 private final Signature sig;
27 private final int key;
28 private final Class  <T> type;
29 public boolean isConcrete(){
30 return false;
31 }
32 UseArgumentComponent(final Signature sig, final int key, final Class <T> type) {
33 this.sig = sig;
34 this.key = key;
35 this.type = type;
36 }
37 public Class <T> getType() {
38 return type;
39 }
40 public T create(Dependency pp){
41 return (T)findDependency(pp).getArgument(sig, key, type);
42 }
43 public Class verify(Dependency pp){
44 return findDependency(pp).verifyArgument(sig, key, type);
45 }
46
47 public boolean equals(Object obj) {
48 if(obj instanceof UseArgumentComponent){
49 final UseArgumentComponent other = (UseArgumentComponent)obj;
50 return sig.equals(other.sig) && key == other.key && type.equals(other.type);
51 }
52 else return false;
53 }
54 public int hashCode() {
55 return (key*31 + type.hashCode())*31+sig.hashCode();
56 }
57 public String toString() {
58 return "useArgument(" + sig.getName()+","+key + ","+jfun.util.Misc.getTypeName(type)+")";
59 }
60 private Dependency findDependency(Dependency dep){
61 final Dependency parent = dep.getParent();
62 if(parent == null)
63 throw new YanException("useArgument can only be used for parameter or property");
64 return parent;
65 }
66 public boolean isSingleton(){
67 return false;
68 }
69 }
70 |
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Java API By Example, From Geeks To Geeks.