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56 package org.objectstyle.cayenne.pref;
57
58 import java.util.Properties  ;
59
60 import org.objectstyle.cayenne.CayenneDataObject;
61 import org.objectstyle.cayenne.DataObjectUtils;
62 import org.objectstyle.cayenne.ObjectId;
63 import org.objectstyle.cayenne.access.DataContext;
64 import org.objectstyle.cayenne.access.DataNode;
65 import org.objectstyle.cayenne.map.DbEntity;
66 import org.objectstyle.cayenne.util.Util;
67
68
80 public class PreferenceDetail extends CayenneDataObject {
81
82 protected DomainPreference domainPreference;
83
84
89 public void rename(String newKey) {
90 if (Util.nullSafeEquals(getKey(), newKey)) {
91 return;
92 }
93
94 DomainPreference domainPrefrence = getDomainPreference();
95 Domain parent = domainPrefrence.getDomain();
96
97 if (parent == null) {
98 domainPrefrence.setKey(newKey);
99 return;
100 }
101
102 DomainPreference other = parent.getDomainPreference(newKey);
103 if (other != null && other != domainPrefrence) {
104 String otherName = null;
105 for (int i = 1; i < 1000; i++) {
106 if (parent.getDomainPreference(newKey + i) == null) {
107 otherName = newKey + i;
108 break;
109 }
110 }
111
112 if (otherName == null) {
113 throw new PreferenceException("Can't rename an existing preference '"
114 + newKey
115 + "'.");
116 }
117
118 other.setKey(otherName);
119 }
120
121 domainPrefrence.setKey(newKey);
122 }
123
124 public int getIntProperty(String key, int defaultValue) {
125 String value = getProperty(key);
126
127 if (value == null) {
128 return defaultValue;
129 }
130
131 try {
132 return Integer.parseInt(value);
133 }
134 catch (NumberFormatException ex) {
135 throw new PreferenceException("Error converting to int: " + value);
136 }
137 }
138
139 public String getKey() {
140 if (getDomainPreference() == null) {
141 throw new PreferenceException(
142 "Preference not initialized, can't work with properties.");
143 }
144
145 return domainPreference.getKey();
146 }
147
148 public void setIntProperty(String key, int value) {
149 setProperty(key, String.valueOf(value));
150 }
151
152
155 public String getProperty(String key) {
156 return getProperties().getProperty(key);
157 }
158
159 public void setProperty(String key, String value) {
160 getProperties().setProperty(key, value);
161 }
162
163 public DomainPreference getDomainPreference() {
164 if (domainPreference == null) {
165
167 DataContext context = getDataContext();
168
169 if (context != null && getObjectId() != null) {
170 int pk = DataObjectUtils.intPKForObject(this);
171
172 domainPreference = (DomainPreference) DataObjectUtils.objectForPK(
173 context,
174 DomainPreference.class,
175 pk);
176
177 }
178 }
179
180 return domainPreference;
181 }
182
183
186 public void setDomainPreference(DomainPreference domainPreference) {
187 if (this.domainPreference != domainPreference) {
188 this.domainPreference = domainPreference;
189
190 ObjectId oid = getObjectId();
191 if (oid != null && oid.isTemporary()) {
192 oid.getReplacementIdMap().put("id", new Integer (buildPermanentId()));
193 }
194 }
195 }
196
197
200 protected Properties getProperties() {
201 if (getDomainPreference() == null) {
202 throw new PreferenceException(
203 "Preference not initialized, can't work with properties.");
204 }
205
206 return domainPreference.getProperties();
207 }
208
209
212 protected int buildPermanentId() {
213 ObjectId otherId = getDomainPreference().getObjectId();
214 if (otherId == null) {
215 throw new PreferenceException(
216 "Can't persist preference. DomainPreference has no ObjectId");
217 }
218
219 if (otherId.isTemporary() && !otherId.isReplacementIdAttached()) {
221 DbEntity entity = getDataContext().getEntityResolver().lookupDbEntity(
222 domainPreference);
223
224 DataNode node = getDataContext().lookupDataNode(entity.getDataMap());
225
226 try {
227 Object pk = node.getAdapter().getPkGenerator().generatePkForDbEntity(
228 node,
229 entity);
230 otherId.getReplacementIdMap().put(DomainPreference.ID_PK_COLUMN, pk);
231 }
232 catch (Throwable th) {
233 throw new PreferenceException("Error creating primary key", Util
234 .unwindException(th));
235 }
236 }
237
238 return DataObjectUtils.intPKForObject(domainPreference);
239 }
240 } |
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