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1
19
20 package org.apache.cayenne.dataview;
21
22 import java.util.ArrayList  ;
23 import java.util.Collections ;
24 import java.util.HashMap ;
25 import java.util.List ;
26 import java.util.Map ;
27
28 import org.apache.commons.lang.Validate;
29 import org.apache.cayenne.map.ObjEntity;
30
31
37 public class ObjEntityView {
38
39 private DataView owner;
40 private ObjEntity objEntity;
41 private List fields = new ArrayList ();
42 private Map nameFieldMap = new HashMap ();
43 private List readOnlyFields = Collections.unmodifiableList(fields);
44 private String name;
45
46 public ObjEntityView() {
47 }
48
49 public String getName() {
50 return name;
51 }
52
53 public void setName(String name) {
54 Validate.notNull(name);
55 this.name = name;
56 }
57
58 public List getFields() {
59 return readOnlyFields;
60 }
61
62 public List getVisibleFields() {
63 int size = getFieldCount();
64 List dst = new ArrayList (size);
65 for (int i = 0; i < size; i++) {
66 ObjEntityViewField field = getField(i);
67 if (field.isVisible())
68 dst.add(field);
69 }
70 return dst;
71 }
72
73 public List getEditableFields() {
74 int size = getFieldCount();
75 List dst = new ArrayList (size);
76 for (int i = 0; i < size; i++) {
77 ObjEntityViewField field = getField(i);
78 if (field.isVisible() && field.isEditable())
79 dst.add(field);
80 }
81 return dst;
82 }
83
84 public ObjEntity getObjEntity() {
85 return objEntity;
86 }
87
88 public void setObjEntity(ObjEntity objEntity) {
89 Validate.notNull(objEntity);
90 this.objEntity = objEntity;
91 }
92
93 public ObjEntityViewField getField(int index) {
94 return (ObjEntityViewField) fields.get(index);
95 }
96
97 public ObjEntityViewField getField(String fieldName) {
98 return (ObjEntityViewField) nameFieldMap.get(fieldName);
99 }
100
101 public ObjEntityViewField getFieldForObjAttribute(String objAttributeName) {
102 for (int i = 0; i < fields.size(); i++) {
103 ObjEntityViewField field = getField(i);
104 if (objAttributeName.equals(field.getObjAttribute().getName()))
105 return field;
106 }
107 return null;
108 }
109
110 public int getFieldCount() {
111 return fields.size();
112 }
113
114 public boolean hasFields() {
115 return !fields.isEmpty();
116 }
117
118 public void clearFields() {
119 for (int i = 0; i < getFieldCount(); i++) {
120 ObjEntityViewField field = getField(i);
121 field.setOwner(null);
122 field.setIndex(-1);
123 }
124 fields.clear();
125 nameFieldMap.clear();
126 }
127
128 public boolean removeField(ObjEntityViewField field) {
129 if (field.getOwner() != this)
130 return false;
131 field.setOwner(null);
132 field.setIndex(-1);
133 nameFieldMap.remove(field.getName());
134 return fields.remove(field);
135 }
136
137 public int insertField(ObjEntityViewField field) {
138 if (field.getOwner() == this)
139 return field.getIndex();
140
141 Validate.notNull(field.getName());
142 Validate.isTrue(!nameFieldMap.containsKey(field.getName()));
143 field.setOwner(this);
144 nameFieldMap.put(field.getName(), field);
145
146 int prefIndex = field.getPreferredIndex();
147 int fieldCount = getFieldCount();
148
149 if (prefIndex < 0) {
150 int newIndex = fieldCount;
151 fields.add(field);
152 field.setIndex(newIndex);
153 return newIndex;
154 }
155
156 int index = 0;
157 int curPrefIndex = -1;
158 while (index < fieldCount
159 && ((curPrefIndex = getField(index++).getPreferredIndex()) <= prefIndex)
160 && curPrefIndex >= 0) {
161 }
163
164 fields.add(index, field);
165 field.setIndex(index);
166 fieldCount++;
167
168 for (int i = (index + 1); i < fieldCount; i++) {
169 getField(i).setIndex(i);
170 }
171
172 return index;
173 }
174
175 public DataView getOwner() {
176 return owner;
177 }
178
179 void setOwner(DataView owner) {
180 this.owner = owner;
181 }
182 }
183 |
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