Source Code Cross Referenced for CalendarConverter.java in  » IDE-Netbeans » visualweb.api.designer » com » sun » rave » faces » converter » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » IDE Netbeans » visualweb.api.designer » com.sun.rave.faces.converter 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003:         *
004:         * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005:         *
006:         * The contents of this file are subject to the terms of either the GNU
007:         * General Public License Version 2 only ("GPL") or the Common
008:         * Development and Distribution License("CDDL") (collectively, the
009:         * "License"). You may not use this file except in compliance with the
010:         * License. You can obtain a copy of the License at
011:         * http://www.netbeans.org/cddl-gplv2.html
012:         * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
013:         * specific language governing permissions and limitations under the
014:         * License.  When distributing the software, include this License Header
015:         * Notice in each file and include the License file at
016:         * nbbuild/licenses/CDDL-GPL-2-CP.  Sun designates this
017:         * particular file as subject to the "Classpath" exception as provided
018:         * by Sun in the GPL Version 2 section of the License file that
019:         * accompanied this code. If applicable, add the following below the
020:         * License Header, with the fields enclosed by brackets [] replaced by
021:         * your own identifying information:
022:         * "Portions Copyrighted [year] [name of copyright owner]"
023:         *
024:         * Contributor(s):
025:         *
026:         * The Original Software is NetBeans. The Initial Developer of the Original
027:         * Software is Sun Microsystems, Inc. Portions Copyright 1997-2007 Sun
028:         * Microsystems, Inc. All Rights Reserved.
029:         *
030:         * If you wish your version of this file to be governed by only the CDDL
031:         * or only the GPL Version 2, indicate your decision by adding
032:         * "[Contributor] elects to include this software in this distribution
033:         * under the [CDDL or GPL Version 2] license." If you do not indicate a
034:         * single choice of license, a recipient has the option to distribute
035:         * your version of this file under either the CDDL, the GPL Version 2 or
036:         * to extend the choice of license to its licensees as provided above.
037:         * However, if you add GPL Version 2 code and therefore, elected the GPL
038:         * Version 2 license, then the option applies only if the new code is
039:         * made subject to such option by the copyright holder.
040:         */
041:
042:        package com.sun.rave.faces.converter;
043:
044:        import java.util.Calendar;
045:        import java.util.Date;
046:        import java.util.Locale;
047:        import java.util.TimeZone;
048:
049:        import javax.faces.component.StateHolder;
050:        import javax.faces.component.UIComponent;
051:        import javax.faces.context.FacesContext;
052:        import javax.faces.convert.Converter;
053:        import javax.faces.convert.ConverterException;
054:        import javax.faces.convert.DateTimeConverter;
055:
056:        /**
057:         * <p><code>Converter<code> implementation for <code>java.util.Calendar</code>
058:         * values.  Delegates detailed processing, and all property settings, to an
059:         * internal instance of <code>dateTimeConverter</code> that is used to perform
060:         * the actual conversion processing.</p>
061:         */
062:
063:        public class CalendarConverter implements  Converter, StateHolder {
064:
065:            // ------------------------------------------------------ Manifest Constants
066:
067:            /**
068:             * <p>The standard converter id for this converter.</p>
069:             */
070:            public static final String CONVERTER_ID = "com.sun.jsfcl.convert.Calendar";
071:
072:            private static final TimeZone DEFAULT_TIME_ZONE = TimeZone
073:                    .getTimeZone("GMT");
074:
075:            // ------------------------------------------------------ Instance Variables
076:
077:            /**
078:             * <p>Instance of <code>DateTimeConverter that is delegated to for
079:             * all actual processing.</p>
080:             */
081:            private DateTimeConverter converter = new DateTimeConverter();
082:
083:            // -------------------------------------------------------------- Properties
084:
085:            /**
086:             * <p>Return the style to be used to format or parse dates.  If not set,
087:             * the default value, <code>default<code>, is returned.</p>
088:             */
089:            public String getDateStyle() {
090:
091:                return converter.getDateStyle();
092:
093:            }
094:
095:            /**
096:             * <p>Set the style to be used to format or parse dates.  Valid values
097:             * are <code>default</code>, <code>short</code>, <code>medium</code>,
098:             * <code>long</code>, and <code>full</code>.
099:             * An invalid value will cause a {@link ConverterException} when
100:             * <code>getAsObject()</code> or <code>getAsString()</code> is called.</p>
101:             *
102:             * @param dateStyle The new style code
103:             */
104:            public void setDateStyle(String dateStyle) {
105:
106:                converter.setDateStyle(dateStyle);
107:
108:            }
109:
110:            /**
111:             * <p>Return the <code>Locale</code> to be used when parsing or formatting
112:             * dates and times. If not explicitly set, the <code>Locale</code> stored
113:             * in the {@link javax.faces.component.UIViewRoot} for the current 
114:             * request is returned.</p>
115:             */
116:            public Locale getLocale() {
117:
118:                return converter.getLocale();
119:
120:            }
121:
122:            /**
123:             * <p>Set the <code>Locale</code> to be used when parsing or formatting
124:             * dates and times.  If set to <code>null</code>, the <code>Locale</code> 
125:             * stored in the {@link javax.faces.component.UIViewRoot} for the current 
126:             * request will be utilized.</p>
127:             *
128:             * @param locale The new <code>Locale</code> (or <code>null</code>)
129:             */
130:            public void setLocale(Locale locale) {
131:
132:                converter.setLocale(locale);
133:
134:            }
135:
136:            /**
137:             * <p>Return the format pattern to be used when formatting and
138:             * parsing dates and times.</p>
139:             */
140:            public String getPattern() {
141:
142:                return converter.getPattern();
143:
144:            }
145:
146:            /**
147:             * <p>Set the format pattern to be used when formatting and parsing
148:             * dates and times.  Valid values are those supported by
149:             * <code>java.text.SimpleDateFormat</code>.
150:             * An invalid value will cause a {@link ConverterException} when
151:             * <code>getAsObject()</code> or <code>getAsString()</code> is called.</p>
152:             *
153:             * @param pattern The new format pattern
154:             */
155:            public void setPattern(String pattern) {
156:
157:                converter.setPattern(pattern);
158:
159:            }
160:
161:            /**
162:             * <p>Return the style to be used to format or parse times.  If not set,
163:             * the default value, <code>default</code>, is returned.</p>
164:             */
165:            public String getTimeStyle() {
166:
167:                return converter.getTimeStyle();
168:
169:            }
170:
171:            /**
172:             * <p>Set the style to be used to format or parse times.  Valid values
173:             * are <code>default</code>, <code>short</code>, <code>medium</code>,
174:             * <code>long</code>, and <code>full</code>.
175:             * An invalid value will cause a {@link ConverterException} when
176:             * <code>getAsObject()</code> or <code>getAsString()</code> is called.</p>
177:             *
178:             * @param timeStyle The new style code
179:             */
180:            public void setTimeStyle(String timeStyle) {
181:
182:                converter.setTimeStyle(timeStyle);
183:
184:            }
185:
186:            /**
187:             * <p>Return the <code>TimeZone</code> used to interpret a time value.
188:             * If not explicitly set, the default time zone of <code>GMT</code> 
189:             * returned.</p>
190:             */
191:            public TimeZone getTimeZone() {
192:
193:                return converter.getTimeZone();
194:
195:            }
196:
197:            /**
198:             * <p>Set the <code>TimeZone</code> used to interpret a time value.</p>
199:             *
200:             * @param timeZone The new time zone
201:             */
202:            public void setTimeZone(TimeZone timeZone) {
203:
204:                converter.setTimeZone(timeZone);
205:
206:            }
207:
208:            /**
209:             * <p>Return the type of value to be formatted or parsed.
210:             * If not explicitly set, the default type, <code>date</code> 
211:             * is returned.</p>
212:             */
213:            public String getType() {
214:
215:                return converter.getType();
216:
217:            }
218:
219:            /**
220:             * <p>Set the type of value to be formatted or parsed.
221:             * Valid values are <code>both</code>, <code>date</code>, or
222:             * <code>time</code>.
223:             * An invalid value will cause a {@link ConverterException} when
224:             * <code>getAsObject()</code> or <code>getAsString()</code> is called.</p>
225:             *
226:             * @param type The new date style
227:             */
228:            public void setType(String type) {
229:
230:                converter.setType(type);
231:
232:            }
233:
234:            // ------------------------------------------------------- Converter Methods
235:
236:            /**
237:             * @exception ConverterException 
238:             * @exception NullPointerException 
239:             */
240:            public Object getAsObject(FacesContext context,
241:                    UIComponent component, String value) {
242:
243:                Date date = (Date) converter.getAsObject(context, component,
244:                        value);
245:                if (date == null) {
246:                    return null;
247:                }
248:
249:                Locale locale = getLocale();
250:                TimeZone timeZone = getTimeZone();
251:                Calendar instance = null;
252:                if (timeZone != null) {
253:                    instance = Calendar.getInstance(timeZone, locale);
254:                } else {
255:                    instance = Calendar.getInstance(locale);
256:                }
257:                instance.setTime(date);
258:                return instance;
259:
260:            }
261:
262:            /**
263:             * @exception ConverterException
264:             * @exception NullPointerException 
265:             */
266:            public String getAsString(FacesContext context,
267:                    UIComponent component, Object value) {
268:
269:                if ((value != null) && (value instanceof  Calendar)) {
270:                    return converter.getAsString(context, component,
271:                            ((Calendar) value).getTime());
272:                } else {
273:                    return converter.getAsString(context, component, value);
274:                }
275:
276:            }
277:
278:            // ----------------------------------------------------- StateHolder Methods
279:
280:            public Object saveState(FacesContext context) {
281:
282:                return ((StateHolder) converter).saveState(context);
283:
284:            }
285:
286:            public void restoreState(FacesContext context, Object state) {
287:
288:                DateTimeConverter converter = new DateTimeConverter();
289:                converter.restoreState(context, state);
290:
291:            }
292:
293:            private boolean transientFlag = false;
294:
295:            public boolean isTransient() {
296:                return (transientFlag);
297:            }
298:
299:            public void setTransient(boolean transientFlag) {
300:                this.transientFlag = transientFlag;
301:            }
302:
303:        }
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