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22
23 package org.xquark.schema;
24
25 import java.util.Iterator  ;
26
27 public class IterationVisitor extends DefaultSchemaVisitor {
28 private static final String RCSRevision = "$Revision: 1.1 $";
29 private static final String RCSName = "$Name: $";
30
31 protected SchemaVisitor pre;
32 protected SchemaVisitor post;
33 protected boolean inTopLevelDeclaration = true;
34 protected boolean inAttributeWildcard = false;
35
36 public IterationVisitor(SchemaVisitor pre, SchemaVisitor post) {
37 this.pre = pre;
38 this.post = post;
39 }
40
41 public IterationVisitor(SchemaVisitor visitor) {
42 this(visitor, null);
43 }
44
45 public boolean isTopLevel() {
46 return inTopLevelDeclaration;
47 }
48
49 public boolean isAttributeWildcard() {
50 return inAttributeWildcard;
51 }
52
53 public void visit(Schema schema) throws SchemaException {
54
55 if (pre != null) schema.accept(pre);
56
57 Iterator it = schema.getAttributeDeclarations().iterator();
58 while (it.hasNext()) {
59 inTopLevelDeclaration = true;
60 ((SchemaVisitable)it.next()).accept(this);
61 }
62
63 it = schema.getElementDeclarations().iterator();
64 while (it.hasNext()) {
65 inTopLevelDeclaration = true;
66 ((SchemaVisitable)it.next()).accept(this);
67 }
68
69 it = schema.getTypes().iterator();
70 while (it.hasNext()) ((SchemaVisitable)it.next()).accept(this);
71
72 it = schema.getModelGroupDefinitions().iterator();
73 while (it.hasNext()) ((SchemaVisitable)it.next()).accept(this);
74
75 it = schema.getAttributeGroupDefinitions().iterator();
76 while (it.hasNext()) ((SchemaVisitable)it.next()).accept(this);
77
78 if (post != null) schema.accept(post);
79 }
80
81 public void visit(SchemaComponent comp) throws SchemaException {
82 if (pre != null) comp.accept(pre);
83 if (post != null) comp.accept(post);
84 }
85
86 public void visit(ComplexType type) throws SchemaException {
87 inTopLevelDeclaration = false;
88 if (pre != null) type.accept(pre);
89
90 type.getContentModel().accept(this);
91
92 Iterator it = type.getAttributeDeclarations().iterator();
93 while (it.hasNext()) ((SchemaVisitable)it.next()).accept(this);
94
95 if (type.getAttributeWildcard() != null) {
96 inAttributeWildcard = true;
97 type.getAttributeWildcard().accept(this);
98 inAttributeWildcard = false;
99 }
100
101 if (post != null) type.accept(post);
102 }
103
104 public void visit(Declaration decl) throws SchemaException {
105 if (pre != null) decl.accept(pre);
106 if (inTopLevelDeclaration || !decl.getScope().isGlobalScope()) {
107 Type type = decl.getType();
108 if (type != null && type.getName() == null) type.accept(this);
109 }
110 if (post != null) decl.accept(post);
111 }
112
113 public void visit(Wildcard wildcard) throws SchemaException {
114 if (pre != null) wildcard.accept(pre);
115 if (post != null) wildcard.accept(post);
116 }
117
118 public void visit(ModelGroupDefinition def) throws SchemaException {
119 if (pre != null) def.accept(pre);
120 ModelGroup model = def.getModelGroup();
121 model.accept(this);
122 if (post != null) def.accept(post);
123 }
124
125 public void visit(AttributeGroupDefinition def) throws SchemaException {
126 if (pre != null) def.accept(pre);
127 Iterator it = def.getContents().iterator();
128 while (it.hasNext()) ((SchemaVisitable)it.next()).accept(this);
129 if (post != null) def.accept(post);
130 }
131
132 public void visit(ContentModel model) throws SchemaException {
133 if (pre != null) model.accept(pre);
134 if ( model.getModel() != null )
135 ((SchemaVisitable)model.getModel()).accept(this);
136 if (post != null) model.accept(post);
137 }
138
139 public void visit(Particle particle) throws SchemaException {
140 if (pre != null) particle.accept(pre);
141 ((SchemaVisitable)particle.getTerm()).accept(this);
142 if (post != null) particle.accept(post);
143 }
144
145 public void visit(ModelGroup group) throws SchemaException {
146 if (pre != null) group.accept(pre);
147 Iterator it = group.iterator();
148 while (it.hasNext()) ((SchemaVisitable)it.next()).accept(this);
149 if (post != null) group.accept(post);
150 }
151
152 }
153 |
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