Source Code Cross Referenced for PropertyInstance.java in  » Content-Management-System » harmonise » org » openharmonise » vfs » metadata » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Content Management System » harmonise » org.openharmonise.vfs.metadata 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * The contents of this file are subject to the 
003:         * Mozilla Public License Version 1.1 (the "License"); 
004:         * you may not use this file except in compliance with the License. 
005:         * You may obtain a copy of the License at http://www.mozilla.org/MPL/
006:         *
007:         * Software distributed under the License is distributed on an "AS IS"
008:         * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. 
009:         * See the License for the specific language governing rights and 
010:         * limitations under the License.
011:         *
012:         * The Initial Developer of the Original Code is Simulacra Media Ltd.
013:         * Portions created by Simulacra Media Ltd are Copyright (C) Simulacra Media Ltd, 2004.
014:         *
015:         * All Rights Reserved.
016:         *
017:         * Contributor(s):
018:         */
019:        package org.openharmonise.vfs.metadata;
020:
021:        import java.util.ArrayList;
022:        import java.util.Iterator;
023:        import java.util.List;
024:
025:        import org.openharmonise.vfs.*;
026:        import org.openharmonise.vfs.event.*;
027:        import org.openharmonise.vfs.metadata.range.*;
028:        import org.openharmonise.vfs.metadata.value.*;
029:        import org.openharmonise.vfs.servers.ServerList;
030:
031:        /**
032:         * A property instance is an item of metadata which is attached to a
033:         * virtual file.
034:         * 
035:         * @author Matthew Large
036:         * @version $Revision: 1.2 $
037:         *
038:         */
039:        public class PropertyInstance {
040:
041:            /**
042:             * Namespace of this property instance.
043:             */
044:            private String m_sNamespaceURI = null;
045:
046:            /**
047:             * Name of this property instance.
048:             */
049:            private String m_sName = null;
050:
051:            /**
052:             * Path to the virtual file for the property defining this property instance.
053:             */
054:            private String m_sPropDefnPath = null;
055:
056:            /**
057:             * Version identifier of the property defining this property instance.
058:             */
059:            private String m_sPropDefnVersion = null;
060:
061:            /**
062:             * List of {@link ValueInstance} objects which are the values for this property instance.
063:             */
064:            private ArrayList m_values = new ArrayList();
065:
066:            /**
067:             * Virtual file that owns this property instance
068:             */
069:            private VirtualFile m_vfFile = null;
070:
071:            public PropertyInstance() {
072:                super ();
073:            }
074:
075:            /**
076:             * Constructs a new property instance.
077:             * 
078:             * @param sNamespaceURI Namespace
079:             * @param sName Name
080:             */
081:            public PropertyInstance(String sNamespaceURI, String sName) {
082:                super ();
083:                this .m_sNamespaceURI = sNamespaceURI;
084:                this .m_sName = sName;
085:            }
086:
087:            /**
088:             * Constructs a new property instance.
089:             * 
090:             * @param sNamespaceURI Namespace
091:             * @param sName Name
092:             * @param aValues List of {@link ValueInstance} objects
093:             */
094:            public PropertyInstance(String sNamespaceURI, String sName,
095:                    List aValues) {
096:                this (sNamespaceURI, sName);
097:                this .m_values.addAll(aValues);
098:            }
099:
100:            /**
101:             * Clears all the values for this property instance.
102:             *
103:             */
104:            public void clearAllValues() {
105:                this .m_values.clear();
106:                if (this .m_vfFile != null) {
107:                    this .m_vfFile
108:                            .fireVirtualFileEvent(VirtualFileEvent.FILE_METADATA_CHANGED);
109:                } else {
110:                }
111:            }
112:
113:            /**
114:             * Returns the namespace for this property instance.
115:             * 
116:             * @return Namespace
117:             */
118:            public String getNamespaceURI() {
119:                return this .m_sNamespaceURI;
120:            }
121:
122:            /**
123:             * Sets the namespace for this property instance.
124:             * 
125:             * @param sNamespaceURI Namespace
126:             */
127:            public void setNamespaceURI(String sNamespaceURI) {
128:                this .m_sNamespaceURI = sNamespaceURI;
129:            }
130:
131:            /**
132:             * Returns the name for this property instance.
133:             * 
134:             * @return Name
135:             */
136:            public String getName() {
137:                return this .m_sName;
138:            }
139:
140:            /**
141:             * Sets the name for this property instance.
142:             * 
143:             * @param sName Name
144:             */
145:            public void setName(String sName) {
146:                this .m_sName = sName;
147:            }
148:
149:            /**
150:             * Returns a list of the values for this property instance.
151:             * 
152:             * @return List of {@link ValueInstance} objects
153:             */
154:            public List getValues() {
155:                return (List) this .m_values.clone();
156:            }
157:
158:            /**
159:             * Sets the value for this property instance.
160:             * 
161:             * @param value Value
162:             */
163:            public void setValue(ValueInstance value) {
164:                if (this .m_values.size() > 0) {
165:                    this .m_values.set(0, value);
166:                } else {
167:                    this .m_values.add(value);
168:                }
169:                if (this .m_vfFile != null) {
170:                    this .m_vfFile
171:                            .fireVirtualFileEvent(VirtualFileEvent.FILE_METADATA_CHANGED);
172:                } else {
173:                }
174:            }
175:
176:            /**
177:             * Sets the values for this property instance.
178:             * 
179:             * @param aValues List of {@link ValueInstance} objects
180:             */
181:            public void setValues(List aValues) {
182:                this .m_values = (ArrayList) aValues;
183:                if (this .m_vfFile != null) {
184:                    this .m_vfFile
185:                            .fireVirtualFileEvent(VirtualFileEvent.FILE_METADATA_CHANGED);
186:                } else {
187:                }
188:            }
189:
190:            /**
191:             * Adds a value to this property instance WITHOUT FIRING A VIRTUAL
192:             * FILE EVENT. This is a bit of an evil cludge......use with caution,
193:             * however it does do what it says on the tin!! ;D
194:             * 
195:             * @param value Value
196:             */
197:            public void addValueWithoutFiringVirtualFileEvent(
198:                    ValueInstance value) {
199:                boolean bAddValue = true;
200:                if (this .getDefinition().getRange() instanceof  ValueRange) {
201:                    if (!((ValueRange) this .getDefinition().getRange())
202:                            .validate(value).isValid()) {
203:                        bAddValue = false;
204:                    }
205:                }
206:
207:                if (bAddValue && !this .m_values.contains(value)) {
208:                    this .m_values.add(value);
209:                }
210:            }
211:
212:            /**
213:             * Adds a value to this property instance.
214:             * 
215:             * @param value Value
216:             */
217:            public void addValue(ValueInstance value) {
218:                boolean bAddValue = true;
219:                if (this .getDefinition().getRange() instanceof  ValueRange) {
220:                    if (!((ValueRange) this .getDefinition().getRange())
221:                            .validate(value).isValid()) {
222:                        bAddValue = false;
223:                    }
224:                }
225:
226:                if (bAddValue && !this .m_values.contains(value)) {
227:                    this .m_values.add(value);
228:                }
229:                if (bAddValue && this .m_vfFile != null) {
230:                    this .m_vfFile
231:                            .fireVirtualFileEvent(VirtualFileEvent.FILE_METADATA_CHANGED);
232:                }
233:            }
234:
235:            /**
236:             * Removes a value from this property instance.
237:             * 
238:             * @param value Value
239:             */
240:            public void removeValue(ValueInstance value) {
241:                this .m_values.remove(value);
242:                if (this .m_vfFile != null) {
243:                    this .m_vfFile
244:                            .fireVirtualFileEvent(VirtualFileEvent.FILE_METADATA_CHANGED);
245:                }
246:            }
247:
248:            /**
249:             * Removes a value from this property instance.
250:             * 
251:             * @param value Value
252:             */
253:            public void removeValueWithoutFiringVirtualFileEvent(
254:                    ValueInstance value) {
255:                this .m_values.remove(value);
256:            }
257:
258:            /**
259:             * Sets the version identifier and full path to the virtual file
260:             * for the property which defines this property instance.
261:             * 
262:             * @param sPath Full path
263:             * @param sVersion Version identifier
264:             */
265:            public void setDefinitionPath(String sPath, String sVersion) {
266:                this .m_sPropDefnPath = sPath;
267:                this .m_sPropDefnVersion = sVersion;
268:            }
269:
270:            /**
271:             * Returns the full path to the virtual file for the property
272:             * which defines this property instance.
273:             * 
274:             * @return Full path
275:             */
276:            public String getDefinitionPath() {
277:                return this .m_sPropDefnPath;
278:            }
279:
280:            /**
281:             * Returns the version identifier for the property which
282:             * defines this property instance.
283:             * 
284:             * @return Version identifier
285:             */
286:            public String getDefinitionVersion() {
287:                return this .m_sPropDefnVersion;
288:            }
289:
290:            /**
291:             * Returns the property which defines this property instance.
292:             * 
293:             * @return Property
294:             */
295:            public Property getDefinition() {
296:                if (this .m_sPropDefnPath != null) {
297:                    Property prop = PropertyCache.getInstance()
298:                            .getPropertyByPath(m_sPropDefnPath,
299:                                    m_sPropDefnVersion);
300:                    if (prop != null) {
301:                        prop.setNamespace(m_sNamespaceURI);
302:                        return prop;
303:                    } else {
304:                        return PropertyCache.getInstance().getPropertyByName(
305:                                this .m_sNamespaceURI, this .m_sName);
306:                    }
307:                } else {
308:                    return PropertyCache.getInstance().getPropertyByName(
309:                            this .m_sNamespaceURI, this .m_sName);
310:                }
311:            }
312:
313:            public String toString() {
314:                return this .m_sNamespaceURI + ":" + this .m_sName + ":"
315:                        + this .m_values;
316:            }
317:
318:            /**
319:             * Sets the virtual file which owns this property instance.
320:             * 
321:             * @param vfFile Virtual file
322:             */
323:            public void setVirtualFile(VirtualFile vfFile) {
324:                this .m_vfFile = vfFile;
325:                if (this .getDefinition() != null
326:                        && this .getDefinition().getRange() instanceof  PropertyRange) {
327:                    Iterator itor = this .m_values.iterator();
328:                    while (itor.hasNext()) {
329:                        PropertyValue val = (PropertyValue) itor.next();
330:                        Iterator itor2 = val.getValue().iterator();
331:                        while (itor2.hasNext()) {
332:                            PropertyInstance propInst = (PropertyInstance) itor2
333:                                    .next();
334:                            propInst.setVirtualFile(vfFile);
335:                        }
336:                    }
337:                }
338:            }
339:
340:            /**
341:             * Returns the virtual file which owns this property instance.
342:             * 
343:             * @return Virtual file
344:             */
345:            public VirtualFile getVirtualFile() {
346:                return this .m_vfFile;
347:            }
348:
349:            /**
350:             * Returns a new value of the correct concrete type for this
351:             * property instance.
352:             * 
353:             * @return Value
354:             */
355:            public ValueInstance getNewValueInstance() {
356:                if (this .m_vfFile.getVFS() != null) {
357:                    return this .m_vfFile.getVFS().getNewValueInstance(this );
358:                } else {
359:                    return ServerList.getInstance().getHarmoniseServer()
360:                            .getVFS().getNewValueInstance(this );
361:                }
362:            }
363:
364:            /* (non-Javadoc)
365:             * @see java.lang.Object#equals(java.lang.Object)
366:             */
367:            public boolean equals(Object arg0) {
368:                if (super .equals(arg0)) {
369:                    return true;
370:                } else if (arg0 instanceof  PropertyInstance) {
371:                    PropertyInstance propInst = (PropertyInstance) arg0;
372:                    if (propInst.m_sName.equals(this .m_sName)
373:                            && propInst.m_sNamespaceURI
374:                                    .equals(this .m_sNamespaceURI)
375:                            && propInst.m_values.containsAll(this .m_values)) {
376:                        return true;
377:                    } else {
378:                        return false;
379:                    }
380:                } else {
381:                    return false;
382:                }
383:            }
384:
385:        }
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