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1 package org.enhydra.shark.xpdl;
2
3 import java.util.ArrayList  ;
4 import java.util.Iterator ;
5
6
11 public abstract class XMLComplexChoice extends XMLElement {
12
13 protected ArrayList choices;
14
15 protected XMLElement choosen;
16
17 protected transient boolean cachesInitialized=false;
18
19 public XMLComplexChoice(XMLComplexElement parent, String name, boolean isRequired) {
20 super(parent, name, isRequired);
21 fillChoices();
22 }
23
24 public void setValue(String v) {
25 throw new RuntimeException ("Can't set value for this type of element!");
26 }
27
28
32 public void setReadOnly (boolean ro) {
33 super.setReadOnly(ro);
34 for (int i = 0; i < choices.size(); i++) {
35 ((XMLElement) choices.get(i)).setReadOnly(ro);
36 }
37 }
38
39
43 public void initCaches () {
44 if (!isReadOnly) {
45 throw new RuntimeException ("Caches can be initialized only in read-only mode!");
46 }
47 clearCaches();
48 Iterator it=choices.iterator();
49 while (it.hasNext()) {
50 XMLElement el=(XMLElement)it.next();
51 if (el instanceof XMLBaseForCollectionAndComplex) {
52 ((XMLBaseForCollectionAndComplex)el).initCaches();
53 } else if (el instanceof XMLComplexChoice) {
54 ((XMLComplexChoice)el).initCaches();
55 }
56 }
57 cachesInitialized=true;
58 }
59
60 public void clearCaches () {
61 Iterator it=choices.iterator();
62 while (it.hasNext()) {
63 XMLElement el=(XMLElement)it.next();
64 if (el instanceof XMLBaseForCollectionAndComplex) {
65 ((XMLBaseForCollectionAndComplex)el).clearCaches();
66 } else if (el instanceof XMLComplexChoice) {
67 ((XMLComplexChoice)el).clearCaches();
68 }
69 }
70 cachesInitialized=false;
71 }
72
73 public boolean isEmpty() {
74 return (choosen instanceof XMLEmptyChoiceElement);
75 }
76
77
82 public ArrayList getChoices() {
83 return choices;
84 }
85
86 public XMLElement getChoosen() {
87 return choosen;
88 }
89
90 public void setChoosen(XMLElement ch) {
91 if (isReadOnly) {
92 throw new RuntimeException ("Can't set the value of read only element!");
93 }
94 if (!choices.contains(ch)) {
95 throw new RuntimeException ("Incorrect value! The possible values are: " + choices);
96 }
97 choosen = ch;
98 }
99
100 protected abstract void fillChoices ();
101
102 public Object clone() {
103 XMLComplexChoice d = (XMLComplexChoice) super.clone();
104
105 d.choices = new ArrayList ();
106 d.choosen = null;
107 d.cachesInitialized=false;
108 Iterator it=choices.iterator();
109 while (it.hasNext()) {
110 XMLElement c=(XMLElement)it.next();
111 XMLElement cloned = (XMLElement) c.clone();
112 d.choices.add(cloned);
113 cloned.setParent(d);
114 if (d.choosen==null && this.choosen.equals(c)) {
115 d.choosen = cloned;
116 }
117 }
118 return d;
119 }
120
121 public boolean equals (Object e) {
122 boolean equals=super.equals(e);
123 if (equals) {
124 XMLComplexChoice el=(XMLComplexChoice)e;
125 return (this.choices.equals(el.choices) && this.choosen.equals(el.choosen));
126 }
127 return false;
128 }
129
130 }
131 |
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