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1
17 package org.eclipse.emf.ecore.util;
18
19
20 import java.util.Iterator  ;
21 import java.util.List ;
22 import java.util.ListIterator ;
23
24 import org.eclipse.emf.common.util.BasicEList;
25 import org.eclipse.emf.ecore.EObject;
26 import org.eclipse.emf.ecore.EReference;
27 import org.eclipse.emf.ecore.EStructuralFeature;
28 import org.eclipse.emf.ecore.impl.EClassImpl;
29
30
31
34 public class ECrossReferenceEList extends EContentsEList
35 {
36 public ECrossReferenceEList(EObject eObject)
37 {
38 super
39 (eObject,
40 ((EClassImpl.FeatureSubsetSupplier)eObject.eClass().getEAllStructuralFeatures()).crossReferences());
41 }
42
43 protected ECrossReferenceEList(EObject eObject, EStructuralFeature [] eStructuralFeatures)
44 {
45 super(eObject, eStructuralFeatures);
46 }
47
48 public static class FeatureIteratorImpl extends EContentsEList.FeatureIteratorImpl
49 {
50 public FeatureIteratorImpl(EObject eObject)
51 {
52 super(eObject, (EStructuralFeature [])((BasicEList)eObject.eClass().getEAllReferences()).data());
53 }
54
55 public FeatureIteratorImpl(EObject eObject, EStructuralFeature [] eStructuralFeatures)
56 {
57 super(eObject, eStructuralFeatures);
58 }
59
60 protected boolean isIncluded(EStructuralFeature eStructuralFeature)
61 {
62 if (FeatureMapUtil.isFeatureMap(eStructuralFeature))
63 {
64 return true;
65 }
66 else
67 {
68 EReference eReference = (EReference)eStructuralFeature;
69 return !eReference.isContainment() && !eReference.isContainer();
70 }
71 }
72
73 protected boolean isIncludedEntry(EStructuralFeature eStructuralFeature)
74 {
75 if (eStructuralFeature instanceof EReference)
76 {
77 EReference eReference = (EReference)eStructuralFeature;
78 return !eReference.isContainment() && !eReference.isContainer();
79 }
80 else
81 {
82 return false;
83 }
84 }
85 }
86
87 public static class ResolvingFeatureIteratorImpl extends FeatureIteratorImpl
88 {
89 public ResolvingFeatureIteratorImpl(EObject eObject)
90 {
91 super(eObject);
92 }
93
94 public ResolvingFeatureIteratorImpl(EObject eObject, EStructuralFeature [] eStructuralFeatures)
95 {
96 super(eObject, eStructuralFeatures);
97 }
98
99 protected boolean resolve()
100 {
101 return true;
102 }
103 }
104
105 protected boolean isIncluded(EStructuralFeature eStructuralFeature)
106 {
107 if (FeatureMapUtil.isFeatureMap(eStructuralFeature))
108 {
109 return true;
110 }
111 else
112 {
113 EReference eReference = (EReference)eStructuralFeature;
114 return !eReference.isContainment() && !eReference.isContainer();
115 }
116 }
117
118 protected boolean isIncludedEntry(EStructuralFeature eStructuralFeature)
119 {
120 if (eStructuralFeature instanceof EReference)
121 {
122 EReference eReference = (EReference)eStructuralFeature;
123 return !eReference.isContainment() && !eReference.isContainer();
124 }
125 else
126 {
127 return false;
128 }
129 }
130
131 protected ListIterator newListIterator()
132 {
133 return
134 this.resolve() ?
135 new ResolvingFeatureIteratorImpl(eObject, eStructuralFeatures) :
136 new FeatureIteratorImpl(eObject, eStructuralFeatures);
137 }
138
139 public List basicList()
140 {
141 return
142 new ECrossReferenceEList(eObject, eStructuralFeatures)
143 {
144 protected boolean resolve()
145 {
146 return false;
147 }
148 };
149 }
150
151 public Iterator basicIterator()
152 {
153 if (eStructuralFeatures == null)
154 {
155 return EContentsEList.FeatureIteratorImpl.EMPTY_ITERATOR;
156 }
157
158 return new FeatureIteratorImpl(eObject, eStructuralFeatures);
159 }
160
161 public ListIterator basicListIterator()
162 {
163 if (eStructuralFeatures == null)
164 {
165 return EContentsEList.FeatureIteratorImpl.EMPTY_ITERATOR;
166 }
167
168 return new FeatureIteratorImpl(eObject, eStructuralFeatures);
169 }
170
171 public ListIterator basicListIterator(int index)
172 {
173 if (eStructuralFeatures == null)
174 {
175 if (index < 0 || index > 1)
176 {
177 throw new IndexOutOfBoundsException ("index=" + index + ", size=0");
178 }
179
180 return EContentsEList.FeatureIteratorImpl.EMPTY_ITERATOR;
181 }
182
183 ListIterator result = new FeatureIteratorImpl(eObject, eStructuralFeatures);
184 for (int i = 0; i < index; ++i)
185 {
186 result.next();
187 }
188 return result;
189 }
190 }
191 |
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