Caldavsync Sources: src/net/fortuna/ical4j/model/component/VToDo.java@45d57ecba757 (annotated)

src/net/fortuna/ical4j/model/component/VToDo.java@45d57ecba757 (annotated)

src/net/fortuna/ical4j/model/component/VToDo.java

Tue, 10 Feb 2015 19:58:00 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Tue, 10 Feb 2015 19:58:00 +0100
changeset 4: 45d57ecba757
parent 3: 73bdfa70b04e
permissions: -rw-r--r--

Upgrade the upgraded ical4j component to use org.apache.commons.lang3.

 /**
  * Copyright (c) 2012, Ben Fortuna
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  *  o Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *
  *  o Redistributions in binary form must reproduce the above copyright
  * notice, this list of conditions and the following disclaimer in the
  * documentation and/or other materials provided with the distribution.
  *
  *  o Neither the name of Ben Fortuna nor the names of any other contributors
  * may be used to endorse or promote products derived from this software
  * without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 package net.fortuna.ical4j.model.component;
 import java.io.IOException;
 import java.net.URISyntaxException;
 import java.text.ParseException;
 import java.util.HashMap;
 import java.util.Iterator;
 import java.util.Map;
 import net.fortuna.ical4j.model.Component;
 import net.fortuna.ical4j.model.ComponentList;
 import net.fortuna.ical4j.model.Date;
 import net.fortuna.ical4j.model.Dur;
 import net.fortuna.ical4j.model.Property;
 import net.fortuna.ical4j.model.PropertyList;
 import net.fortuna.ical4j.model.ValidationException;
 import net.fortuna.ical4j.model.Validator;
 import net.fortuna.ical4j.model.property.Clazz;
 import net.fortuna.ical4j.model.property.Completed;
 import net.fortuna.ical4j.model.property.Created;
 import net.fortuna.ical4j.model.property.Description;
 import net.fortuna.ical4j.model.property.DtStamp;
 import net.fortuna.ical4j.model.property.DtStart;
 import net.fortuna.ical4j.model.property.Due;
 import net.fortuna.ical4j.model.property.Duration;
 import net.fortuna.ical4j.model.property.Geo;
 import net.fortuna.ical4j.model.property.LastModified;
 import net.fortuna.ical4j.model.property.Location;
 import net.fortuna.ical4j.model.property.Method;
 import net.fortuna.ical4j.model.property.Organizer;
 import net.fortuna.ical4j.model.property.PercentComplete;
 import net.fortuna.ical4j.model.property.Priority;
 import net.fortuna.ical4j.model.property.RecurrenceId;
 import net.fortuna.ical4j.model.property.Sequence;
 import net.fortuna.ical4j.model.property.Status;
 import net.fortuna.ical4j.model.property.Summary;
 import net.fortuna.ical4j.model.property.Uid;
 import net.fortuna.ical4j.model.property.Url;
 import net.fortuna.ical4j.util.CompatibilityHints;
 import net.fortuna.ical4j.util.ComponentValidator;
 import net.fortuna.ical4j.util.PropertyValidator;
 import net.fortuna.ical4j.util.Strings;
 import org.apache.commons.lang3.ObjectUtils;
 import org.apache.commons.lang3.builder.HashCodeBuilder;
 /**
  * $Id$ [Apr 5, 2004]
  *
  * Defines an iCalendar VTODO component.
  *
  * <pre>
  *       4.6.2 To-do Component
  *
  *          Component Name: VTODO
  *
  *          Purpose: Provide a grouping of calendar properties that describe a
  *          to-do.
  *
  *          Formal Definition: A &quot;VTODO&quot; calendar component is defined by the
  *          following notation:
  *
  *            todoc      = &quot;BEGIN&quot; &quot;:&quot; &quot;VTODO&quot; CRLF
  *                         todoprop *alarmc
  *                         &quot;END&quot; &quot;:&quot; &quot;VTODO&quot; CRLF
  *
  *            todoprop   = *(
  *
  *                       ; the following are optional,
  *                       ; but MUST NOT occur more than once
  *
  *                       class / completed / created / description / dtstamp /
  *                       dtstart / geo / last-mod / location / organizer /
  *                       percent / priority / recurid / seq / status /
  *                       summary / uid / url /
  *
  *                       ; either 'due' or 'duration' may appear in
  *                       ; a 'todoprop', but 'due' and 'duration'
  *                       ; MUST NOT occur in the same 'todoprop'
  *
  *                       due / duration /
  *
  *                       ; the following are optional,
  *                       ; and MAY occur more than once
  *                       attach / attendee / categories / comment / contact /
  *                       exdate / exrule / rstatus / related / resources /
  *                       rdate / rrule / x-prop
  *
  *                       )
  * </pre>
  *
  * Example 1 - Creating a todo of two (2) hour duration starting tomorrow:
  *
  * <pre><code>
  * java.util.Calendar cal = java.util.Calendar.getInstance();
  * // tomorrow..
  * cal.add(java.util.Calendar.DAY_OF_MONTH, 1);
  * cal.set(java.util.Calendar.HOUR_OF_DAY, 11);
  * cal.set(java.util.Calendar.MINUTE, 00);
  *
  * VToDo documentation = new VEvent(cal.getTime(), 1000 * 60 * 60 * 2,
  *         &quot;Document calendar component usage&quot;);
  *
  * // add timezone information..
  * VTimeZone tz = VTimeZone.getDefault();
  * TzId tzParam = new TzId(tz.getProperties().getProperty(Property.TZID)
  *         .getValue());
  * documentation.getProperties().getProperty(Property.DTSTART).getParameters()
  *         .add(tzParam);
  * </code></pre>
  *
  * @author Ben Fortuna
  */
 public class VToDo extends CalendarComponent {
     private static final long serialVersionUID = -269658210065896668L;
     private final Map methodValidators = new HashMap();
     {
         methodValidators.put(Method.ADD, new AddValidator());
         methodValidators.put(Method.CANCEL, new CancelValidator());
         methodValidators.put(Method.COUNTER, new CounterValidator());
         methodValidators.put(Method.DECLINE_COUNTER, new DeclineCounterValidator());
         methodValidators.put(Method.PUBLISH, new PublishValidator());
         methodValidators.put(Method.REFRESH, new RefreshValidator());
         methodValidators.put(Method.REPLY, new ReplyValidator());
         methodValidators.put(Method.REQUEST, new RequestValidator());
     }
     private ComponentList alarms = new ComponentList();
     /**
      * Default constructor.
      */
     public VToDo() {
         super(VTODO);
         getProperties().add(new DtStamp());
     }
     /**
      * Constructor.
      * @param properties a list of properties
      */
     public VToDo(final PropertyList properties) {
         super(VTODO, properties);
     }
     /**
      * Constructs a new VTODO instance starting at the specified time with the specified summary.
      * @param start the start date of the new todo
      * @param summary the todo summary
      */
     public VToDo(final Date start, final String summary) {
         this();
         getProperties().add(new DtStart(start));
         getProperties().add(new Summary(summary));
     }
     /**
      * Constructs a new VTODO instance starting and ending at the specified times with the specified summary.
      * @param start the start date of the new todo
      * @param due the due date of the new todo
      * @param summary the todo summary
      */
     public VToDo(final Date start, final Date due, final String summary) {
         this();
         getProperties().add(new DtStart(start));
         getProperties().add(new Due(due));
         getProperties().add(new Summary(summary));
     }
     /**
      * Constructs a new VTODO instance starting at the specified times, for the specified duration, with the specified
      * summary.
      * @param start the start date of the new todo
      * @param duration the duration of the new todo
      * @param summary the todo summary
      */
     public VToDo(final Date start, final Dur duration, final String summary) {
         this();
         getProperties().add(new DtStart(start));
         getProperties().add(new Duration(duration));
         getProperties().add(new Summary(summary));
     }
     /**
      * Returns the list of alarms for this todo.
      * @return a component list
      */
     public final ComponentList getAlarms() {
         return alarms;
     }
     /**
      * {@inheritDoc}
      */
     public final String toString() {
         final StringBuffer buffer = new StringBuffer();
         buffer.append(BEGIN);
         buffer.append(':');
         buffer.append(getName());
         buffer.append(Strings.LINE_SEPARATOR);
         buffer.append(getProperties());
         buffer.append(getAlarms());
         buffer.append(END);
         buffer.append(':');
         buffer.append(getName());
         buffer.append(Strings.LINE_SEPARATOR);
         return buffer.toString();
     }
     /**
      * {@inheritDoc}
      */
     public final void validate(final boolean recurse)
             throws ValidationException {
         // validate that getAlarms() only contains VAlarm components
         final Iterator iterator = getAlarms().iterator();
         while (iterator.hasNext()) {
             final Component component = (Component) iterator.next();
             if (!(component instanceof VAlarm)) {
                 throw new ValidationException("Component ["
                         + component.getName() + "] may not occur in VTODO");
             }
             ((VAlarm) component).validate(recurse);
         }
         if (!CompatibilityHints
                 .isHintEnabled(CompatibilityHints.KEY_RELAXED_VALIDATION)) {
             // From "4.8.4.7 Unique Identifier":
             // Conformance: The property MUST be specified in the "VEVENT", "VTODO",
             // "VJOURNAL" or "VFREEBUSY" calendar components.
             PropertyValidator.getInstance().assertOne(Property.UID,
                     getProperties());
             // From "4.8.7.2 Date/Time Stamp":
             // Conformance: This property MUST be included in the "VEVENT", "VTODO",
             // "VJOURNAL" or "VFREEBUSY" calendar components.
             PropertyValidator.getInstance().assertOne(Property.DTSTAMP,
                     getProperties());
         }
         /*
          * ; the following are optional, ; but MUST NOT occur more than once class / completed / created / description /
          * dtstamp / dtstart / geo / last-mod / location / organizer / percent / priority / recurid / seq / status /
          * summary / uid / url /
          */
         PropertyValidator.getInstance().assertOneOrLess(Property.CLASS,
                 getProperties());
         PropertyValidator.getInstance().assertOneOrLess(Property.COMPLETED,
                 getProperties());
         PropertyValidator.getInstance().assertOneOrLess(Property.CREATED,
                 getProperties());
         PropertyValidator.getInstance().assertOneOrLess(Property.DESCRIPTION,
                 getProperties());
         PropertyValidator.getInstance().assertOneOrLess(Property.DTSTAMP,
                 getProperties());
         PropertyValidator.getInstance().assertOneOrLess(Property.DTSTART,
                 getProperties());
         PropertyValidator.getInstance().assertOneOrLess(Property.GEO,
                 getProperties());
         PropertyValidator.getInstance().assertOneOrLess(Property.LAST_MODIFIED,
                 getProperties());
         PropertyValidator.getInstance().assertOneOrLess(Property.LOCATION,
                 getProperties());
         PropertyValidator.getInstance().assertOneOrLess(Property.ORGANIZER,
                 getProperties());
         PropertyValidator.getInstance().assertOneOrLess(
                 Property.PERCENT_COMPLETE, getProperties());
         PropertyValidator.getInstance().assertOneOrLess(Property.PRIORITY,
                 getProperties());
         PropertyValidator.getInstance().assertOneOrLess(Property.RECURRENCE_ID,
                 getProperties());
         PropertyValidator.getInstance().assertOneOrLess(Property.SEQUENCE,
                 getProperties());
         PropertyValidator.getInstance().assertOneOrLess(Property.STATUS,
                 getProperties());
         PropertyValidator.getInstance().assertOneOrLess(Property.SUMMARY,
                 getProperties());
         PropertyValidator.getInstance().assertOneOrLess(Property.UID,
                 getProperties());
         PropertyValidator.getInstance().assertOneOrLess(Property.URL,
                 getProperties());
         final Status status = (Status) getProperty(Property.STATUS);
         if (status != null && !Status.VTODO_NEEDS_ACTION.getValue().equals(status.getValue())
                 && !Status.VTODO_COMPLETED.getValue().equals(status.getValue())
                 && !Status.VTODO_IN_PROCESS.getValue().equals(status.getValue())
                 && !Status.VTODO_CANCELLED.getValue().equals(status.getValue())) {
             throw new ValidationException("Status property ["
                     + status.toString() + "] may not occur in VTODO");
         }
         /*
          * ; either 'due' or 'duration' may appear in ; a 'todoprop', but 'due' and 'duration' ; MUST NOT occur in the
          * same 'todoprop' due / duration /
          */
         try {
             PropertyValidator.getInstance().assertNone(Property.DUE,
                     getProperties());
         }
         catch (ValidationException ve) {
             PropertyValidator.getInstance().assertNone(Property.DURATION,
                     getProperties());
         }
         /*
          * ; the following are optional, ; and MAY occur more than once attach / attendee / categories / comment /
          * contact / exdate / exrule / rstatus / related / resources / rdate / rrule / x-prop
          */
         if (recurse) {
             validateProperties();
         }
     }
     /**
      * {@inheritDoc}
      */
     protected Validator getValidator(Method method) {
         return (Validator) methodValidators.get(method);
     }
     /**
      * <pre>
      * Component/Property  Presence
      * ------------------- ----------------------------------------------
      * METHOD                1       MUST be "ADD"
      * VTODO                 1
      *     DTSTAMP           1
      *     ORGANIZER         1
      *     PRIORITY          1
      *     SEQUENCE          1       MUST be greater than 0
      *     SUMMARY           1       Can be null.
      *     UID               1       MUST match that of the original to-do
      *
      *     ATTACH            0+
      *     ATTENDEE          0+
      *     CATEGORIES        0 or 1  This property may contain a list of
      *                               values
      *     CLASS             0 or 1
      *     COMMENT           0 or 1
      *     CONTACT           0+
      *     CREATED           0 or 1
      *     DESCRIPTION       0 or 1  Can be null
      *     DTSTART           0 or 1
      *     DUE               0 or 1  If present DURATION MUST NOT be present
      *     DURATION          0 or 1  If present DUE MUST NOT be present
      *     EXDATE            0+
      *     EXRULE            0+
      *     GEO               0 or 1
      *     LAST-MODIFIED     0 or 1
      *     LOCATION          0 or 1
      *     PERCENT-COMPLETE  0 or 1
      *     RDATE             0+
      *     RELATED-TO        0+
      *     RESOURCES         0 or 1  This property may contain a list of
      *                               values
      *     RRULE             0+
      *     STATUS            0 or 1  MAY be one of COMPLETED/NEEDS ACTION/IN-
      *                               PROCESS
      *     URL               0 or 1
      *     X-PROPERTY        0+
      *
      *     RECURRENCE-ID     0
      *     REQUEST-STATUS    0
      *
      * VALARM                0+
      * VTIMEZONE             0+      MUST be present if any date/time refers
      *                               to a timezone
      * X-COMPONENT           0+
      *
      * VEVENT                0
      * VJOURNAL              0
      * VFREEBUSY             0
      * </pre>
      *
      */
     private class AddValidator implements Validator {
 		private static final long serialVersionUID = 1L;
         public void validate() throws ValidationException {
             PropertyValidator.getInstance().assertOne(Property.DTSTAMP, getProperties());
             PropertyValidator.getInstance().assertOne(Property.ORGANIZER, getProperties());
             PropertyValidator.getInstance().assertOne(Property.PRIORITY, getProperties());
             PropertyValidator.getInstance().assertOne(Property.SEQUENCE, getProperties());
             PropertyValidator.getInstance().assertOne(Property.SUMMARY, getProperties());
             PropertyValidator.getInstance().assertOne(Property.UID, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.CATEGORIES, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.CLASS, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.CREATED, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.DESCRIPTION, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.DTSTART, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.DUE, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.DURATION, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.GEO, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.LAST_MODIFIED, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.LOCATION, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.PERCENT_COMPLETE, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.RESOURCES, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.STATUS, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.URL, getProperties());
             PropertyValidator.getInstance().assertNone(Property.RECURRENCE_ID, getProperties());
             PropertyValidator.getInstance().assertNone(Property.REQUEST_STATUS, getProperties());
             for (final Iterator i = getAlarms().iterator(); i.hasNext();) {
                 final VAlarm alarm = (VAlarm) i.next();
                 alarm.validate(Method.ADD);
             }
         }
     }
     /**
      * <pre>
      * Component/Property   Presence
      * -------------------  ---------------------------------------------
      * METHOD               1     MUST be "CANCEL"
      * VTODO                1
      *     ATTENDEE         0+    include all "Attendees" being removed from
      *                            the todo. MUST include all "Attendees" if
      *                            the entire todo is cancelled.
      *     UID              1     MUST echo original UID
      *     DTSTAMP          1
      *     ORGANIZER        1
      *     SEQUENCE         1
      *
      *     ATTACH           0+
      *     CATEGORIES       0 or 1 This property MAY contain a list of values
      *     CLASS            0 or 1
      *     COMMENT          0 or 1
      *     CONTACT          0+
      *     CREATED          0 or 1
      *     DESCRIPTION      0 or 1
      *     DTSTART          0 or 1
      *     DUE              0 or 1  If present DURATION MUST NOT be present
      *     DURATION         0 or 1  If present DUE MUST NOT be present
      *     EXDATE           0+
      *     EXRULE           0+
      *     GEO              0 or 1
      *     LAST-MODIFIED    0 or 1
      *     LOCATION         0 or 1
      *     PERCENT-COMPLETE 0 or 1
      *     RDATE            0+
      *     RECURRENCE-ID    0 or 1 MUST only if referring to one or more
      *                             instances of a recurring calendar
      *                             component. Otherwise it MUST NOT be
      *                             present.
      *     RELATED-TO       0+
      *     RESOURCES        0 or 1 This property MAY contain a list of values
      *     RRULE            0+
      *     PRIORITY         0 or 1
      *     STATUS           0 or 1  If present it MUST be set to "CANCELLED".
      *                              MUST NOT be used if purpose is to remove
      *                              "ATTENDEES" rather than cancel the entire
      *                              VTODO.
      *     URL              0 or 1
      *     X-PROPERTY       0+
      *
      *     REQUEST-STATUS   0
      *
      * VTIMEZONE            0 or 1  MUST be present if any date/time refers to
      *                              a timezone
      * X-COMPONENT          0+
      *
      * VALARM               0
      * VEVENT               0
      * VFREEBUSY            0
      * </pre>
      *
      */
     private class CancelValidator implements Validator {
 		private static final long serialVersionUID = 1L;
         public void validate() throws ValidationException {
             PropertyValidator.getInstance().assertOne(Property.UID, getProperties());
             PropertyValidator.getInstance().assertOne(Property.DTSTAMP, getProperties());
             PropertyValidator.getInstance().assertOne(Property.ORGANIZER, getProperties());
             PropertyValidator.getInstance().assertOne(Property.SEQUENCE, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.CATEGORIES, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.CLASS, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.CREATED, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.DESCRIPTION, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.DTSTART, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.DUE, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.DURATION, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.GEO, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.LAST_MODIFIED, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.LOCATION, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.PERCENT_COMPLETE, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.RECURRENCE_ID, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.RESOURCES, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.PRIORITY, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.STATUS, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.URL, getProperties());
             PropertyValidator.getInstance().assertNone(Property.REQUEST_STATUS, getProperties());
             ComponentValidator.assertNone(Component.VALARM, getAlarms());
         }
     }
     /**
      * <pre>
      * Component/Property  Presence
      * ------------------- ----------------------------------------------
      * METHOD               1      MUST be "COUNTER"
      * VTODO                1
      *     ATTENDEE         1+
      *     DTSTAMP          1
      *     ORGANIZER        1
      *     PRIORITY         1
      *     SUMMARY          1      Can be null
      *     UID              1
      *
      *     ATTACH           0+
      *     CATEGORIES       0 or 1 This property MAY contain a list of values
      *     CLASS            0 or 1
      *     COMMENT          0 or 1
      *     CONTACT          0+
      *     CREATED          0 or 1
      *     DESCRIPTION      0 or 1 Can be null
      *     DTSTART          0 or 1
      *     DUE              0 or 1  If present DURATION MUST NOT be present
      *     DURATION         0 or 1  If present DUE MUST NOT be present
      *     EXDATE           0+
      *     EXRULE           0+
      *     GEO              0 or 1
      *     LAST-MODIFIED    0 or 1
      *     LOCATION         0 or 1
      *     PERCENT-COMPLETE 0 or 1
      *     RDATE            0+
      *     RECURRENCE-ID    0 or 1 MUST only 3.5if referring to an instance of a
      *                             recurring calendar component.  Otherwise it
      *                             MUST NOT be present.
      *     RELATED-TO       0+
      *     REQUEST-STATUS   0+
      *     RESOURCES        0 or 1 This property MAY contain a list of values
      *     RRULE            0 or 1
      *     SEQUENCE         0 or 1 MUST echo the original SEQUENCE number.
      *                             MUST be present if non-zero. MAY be present
      *                             if zero.
      *     STATUS           0 or 1 MAY be one of COMPLETED/NEEDS ACTION/IN-
      *                             PROCESS/CANCELLED
      *     URL              0 or 1
      *     X-PROPERTY       0+
      *
      *
      * VALARM               0+
      * VTIMEZONE            0 or 1  MUST be present if any date/time refers to
      *                              a timezone
      * X-COMPONENT          0+
      *
      * VEVENT               0
      * VFREEBUSY            0
      * </pre>
      *
      */
     private class CounterValidator implements Validator {
 		private static final long serialVersionUID = 1L;
         public void validate() throws ValidationException {
             PropertyValidator.getInstance().assertOneOrMore(Property.ATTENDEE, getProperties());
             PropertyValidator.getInstance().assertOne(Property.DTSTAMP, getProperties());
             PropertyValidator.getInstance().assertOne(Property.ORGANIZER, getProperties());
             PropertyValidator.getInstance().assertOne(Property.PRIORITY, getProperties());
             PropertyValidator.getInstance().assertOne(Property.SUMMARY, getProperties());
             PropertyValidator.getInstance().assertOne(Property.UID, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.CATEGORIES, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.CLASS, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.CREATED, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.DESCRIPTION, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.DTSTART, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.DUE, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.DURATION, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.GEO, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.LAST_MODIFIED, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.LOCATION, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.PERCENT_COMPLETE, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.RECURRENCE_ID, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.RESOURCES, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.RRULE, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.SEQUENCE, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.STATUS, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.URL, getProperties());
             for (final Iterator i = getAlarms().iterator(); i.hasNext();) {
                 final VAlarm alarm = (VAlarm) i.next();
                 alarm.validate(Method.COUNTER);
             }
         }
     }
     /**
      * <pre>
      * Component/Property   Presence
      * -------------------  ---------------------------------------------
      * METHOD               1       MUST be "DECLINECOUNTER"
      *
      * VTODO                1
      *     ATTENDEE         1+      MUST for all attendees
      *     DTSTAMP          1
      *     ORGANIZER        1
      *     SEQUENCE         1       MUST echo the original SEQUENCE number
      *     UID              1       MUST echo original UID
      *     ATTACH           0+
      *     CATEGORIES       0 or 1  This property may contain a list of values
      *     CLASS            0 or 1
      *     COMMENT          0 or 1
      *     CONTACT          0+
      *     CREATED          0 or 1
      *     DESCRIPTION      0 or 1
      *     DTSTART          0 or 1
      *     DUE              0 or 1  If present DURATION MUST NOT be present
      *     DURATION         0 or 1  If present DUE MUST NOT be present
      *     EXDATE           0+
      *     EXRULE           0+
      *     GEO              0 or 1
      *     LAST-MODIFIED    0 or 1
      *     LOCATION         0 or 1
      *     PERCENT-COMPLETE 0 or 1
      *     PRIORITY         0 or 1
      *     RDATE            0+
      *     RECURRENCE-ID    0 or 1  MUST only if referring to an instance of a
      *                              recurring calendar component.  Otherwise
      *                              it MUST NOT be present.
      *     RELATED-TO       0+
      *     REQUEST-STATUS   0+
      *     RESOURCES        0 or 1  This property MAY contain a list of values
      *     RRULE            0+
      *     STATUS           0 or 1  MAY be one of COMPLETED/NEEDS ACTION/IN-
      *                              PROCESS
      *     URL              0 or 1
      *     X-PROPERTY       0+
      *
      * VTIMEZONE            0+  MUST be present if any date/time refers to
      *                          a timezone
      * X-COMPONENT          0+
      *
      * VALARM               0
      * VEVENT               0
      * VFREEBUSY            0
      * </pre>
      *
      */
     private class DeclineCounterValidator implements Validator {
 		private static final long serialVersionUID = 1L;
         public void validate() throws ValidationException {
             PropertyValidator.getInstance().assertOneOrMore(Property.ATTENDEE, getProperties());
             PropertyValidator.getInstance().assertOne(Property.DTSTAMP, getProperties());
             PropertyValidator.getInstance().assertOne(Property.ORGANIZER, getProperties());
             PropertyValidator.getInstance().assertOne(Property.SEQUENCE, getProperties());
             PropertyValidator.getInstance().assertOne(Property.UID, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.CATEGORIES, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.CLASS, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.CREATED, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.DESCRIPTION, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.DTSTART, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.DUE, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.DURATION, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.GEO, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.LAST_MODIFIED, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.LOCATION, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.PERCENT_COMPLETE, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.PRIORITY, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.RECURRENCE_ID, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.RESOURCES, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.STATUS, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.URL, getProperties());
             ComponentValidator.assertNone(Component.VALARM, getAlarms());
         }
     }
     /**
      * <pre>
      * Component/Property  Presence
      * ------------------- ----------------------------------------------
      * METHOD               1       MUST be "PUBLISH"
      * VTODO                1+
      *     DTSTAMP          1
      *     DTSTART          1
      *     ORGANIZER        1
      *     PRIORITY         1
      *     SEQUENCE         0 or 1  MUST be present if value is greater than
      *                              0, MAY be present if 0
      *     SUMMARY          1       Can be null.
      *     UID              1
      *
      *     ATTACH           0+
      *     CATEGORIES       0 or 1  This property may contain a list of values
      *     CLASS            0 or 1
      *     COMMENT          0 or 1
      *     CONTACT          0+
      *     CREATED          0 or 1
      *     DESCRIPTION      0 or 1  Can be null
      *     DUE              0 or 1  If present DURATION MUST NOT be present
      *     DURATION         0 or 1  If present DUE MUST NOT be present
      *     EXDATE           0+
      *     EXRULE           0+
      *     GEO              0 or 1
      *     LAST-MODIFIED    0 or 1
      *     LOCATION         0 or 1
      *     PERCENT-COMPLETE 0 or 1
      *     RDATE            0+
      *     RECURRENCE-ID    0 or 1  MUST only if referring to an instance of a
      *                              recurring calendar component.  Otherwise
      *                              it MUST NOT be present.
      *
      *     RELATED-TO       0+
      *     RESOURCES        0 or 1  This property may contain a list of values
      *     RRULE            0+
      *     STATUS           0 or 1  MAY be one of COMPLETED/NEEDS ACTION/IN-
      *                              PROCESS/CANCELLED
      *     URL              0 or 1
      *     X-PROPERTY       0+
      *
      *     ATTENDEE         0
      *     REQUEST-STATUS   0
      *
      * VTIMEZONE            0+    MUST be present if any date/time refers to
      *                            a timezone
      * VALARM               0+
      * X-COMPONENT          0+
      *
      * VFREEBUSY            0
      * VEVENT               0
      * VJOURNAL             0
      * </pre>
      *
      */
     private class PublishValidator implements Validator {
 		private static final long serialVersionUID = 1L;
         public void validate() throws ValidationException {
             PropertyValidator.getInstance().assertOne(Property.DTSTAMP, getProperties());
             if (!CompatibilityHints.isHintEnabled(CompatibilityHints.KEY_RELAXED_VALIDATION)) {
                 PropertyValidator.getInstance().assertOne(Property.ORGANIZER, getProperties());
                 PropertyValidator.getInstance().assertOne(Property.PRIORITY, getProperties());
             }
             PropertyValidator.getInstance().assertOne(Property.SUMMARY, getProperties());
             PropertyValidator.getInstance().assertOne(Property.UID, getProperties());
             // DTSTART: RFC2446 conflicts with RCF2445..
             PropertyValidator.getInstance().assertOneOrLess(Property.DTSTART, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.SEQUENCE, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.CATEGORIES, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.CLASS, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.CREATED, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.DESCRIPTION, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.DUE, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.DURATION, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.GEO, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.LAST_MODIFIED, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.LOCATION, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.PERCENT_COMPLETE, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.RECURRENCE_ID, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.RESOURCES, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.STATUS, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.URL, getProperties());
             PropertyValidator.getInstance().assertNone(Property.ATTENDEE, getProperties());
             PropertyValidator.getInstance().assertNone(Property.REQUEST_STATUS, getProperties());
             for (final Iterator i = getAlarms().iterator(); i.hasNext();) {
                 final VAlarm alarm = (VAlarm) i.next();
                 alarm.validate(Method.PUBLISH);
             }
         }
     }
     /**
      * <pre>
      * Component/Property   Presence
      * -------------------  ---------------------------------------------
      * METHOD               1      MUST be "REFRESH"
      * VTODO                1
      *     ATTENDEE         1
      *     DTSTAMP          1
      *     UID              1       MUST echo original UID
      *
      *     RECURRENCE-ID    0 or 1  MUST only if referring to an instance of a
      *                              Recurring calendar component. Otherwise it
      *                              MUST NOT be present
      *     X-PROPERTY       0+
      *
      *     ATTACH           0
      *     CATEGORIES       0
      *     CLASS            0
      *     COMMENT          0
      *     CONTACT          0
      *     CREATED          0
      *     DESCRIPTION      0
      *     DTSTART          0
      *     DUE              0
      *     DURATION         0
      *     EXDATE           0
      *     EXRULE           0
      *     GEO              0
      *     LAST-MODIFIED    0
      *     LOCATION         0
      *     ORGANIZER        0
      *     PERCENT-COMPLETE 0
      *     PRIORITY         0
      *     RDATE            0
      *     RELATED-TO       0
      *     REQUEST-STATUS   0
      *     RESOURCES        0
      *     RRULE            0
      *     SEQUENCE         0
      *     STATUS           0
      *     URL              0
      *
      * X-COMPONENT          0+
      *
      * VALARM               0
      * VEVENT               0
      * VFREEBUSY            0
      * VTIMEZONE            0
      * </pre>
      *
      */
     private class RefreshValidator implements Validator {
 		private static final long serialVersionUID = 1L;
         public void validate() throws ValidationException {
             PropertyValidator.getInstance().assertOne(Property.ATTENDEE, getProperties());
             PropertyValidator.getInstance().assertOne(Property.DTSTAMP, getProperties());
             PropertyValidator.getInstance().assertOne(Property.UID, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.RECURRENCE_ID, getProperties());
             PropertyValidator.getInstance().assertNone(Property.ATTACH, getProperties());
             PropertyValidator.getInstance().assertNone(Property.CATEGORIES, getProperties());
             PropertyValidator.getInstance().assertNone(Property.CLASS, getProperties());
             PropertyValidator.getInstance().assertNone(Property.CONTACT, getProperties());
             PropertyValidator.getInstance().assertNone(Property.CREATED, getProperties());
             PropertyValidator.getInstance().assertNone(Property.DESCRIPTION, getProperties());
             PropertyValidator.getInstance().assertNone(Property.DTSTART, getProperties());
             PropertyValidator.getInstance().assertNone(Property.DUE, getProperties());
             PropertyValidator.getInstance().assertNone(Property.DURATION, getProperties());
             PropertyValidator.getInstance().assertNone(Property.EXDATE, getProperties());
             PropertyValidator.getInstance().assertNone(Property.EXRULE, getProperties());
             PropertyValidator.getInstance().assertNone(Property.GEO, getProperties());
             PropertyValidator.getInstance().assertNone(Property.LAST_MODIFIED, getProperties());
             PropertyValidator.getInstance().assertNone(Property.LOCATION, getProperties());
             PropertyValidator.getInstance().assertNone(Property.ORGANIZER, getProperties());
             PropertyValidator.getInstance().assertNone(Property.PERCENT_COMPLETE, getProperties());
             PropertyValidator.getInstance().assertNone(Property.PRIORITY, getProperties());
             PropertyValidator.getInstance().assertNone(Property.RDATE, getProperties());
             PropertyValidator.getInstance().assertNone(Property.RELATED_TO, getProperties());
             PropertyValidator.getInstance().assertNone(Property.REQUEST_STATUS, getProperties());
             PropertyValidator.getInstance().assertNone(Property.RESOURCES, getProperties());
             PropertyValidator.getInstance().assertNone(Property.RRULE, getProperties());
             PropertyValidator.getInstance().assertNone(Property.SEQUENCE, getProperties());
             PropertyValidator.getInstance().assertNone(Property.STATUS, getProperties());
             PropertyValidator.getInstance().assertNone(Property.URL, getProperties());
             ComponentValidator.assertNone(Component.VALARM, getAlarms());
         }
     }
     /**
      * <pre>
      * Component/Property   Presence
      * -------------------  ---------------------------------------------
      * METHOD               1      MUST be "REPLY"
      * VTODO                1+     All component MUST have the same UID
      *     ATTENDEE         1+
      *     DTSTAMP          1
      *     ORGANIZER        1
      *     UID              1      MUST must be the address of the replying
      *                             attendee
      *     REQUEST-STATUS   0+
      *     ATTACH           0+
      *     CATEGORIES       0 or 1 This property may contain a list of values
      *     CLASS            0 or 1
      *     COMMENT          0 or 1
      *     CONTACT          0+
      *     CREATED          0 or 1
      *     DESCRIPTION      0 or 1
      *     DTSTART          0 or 1
      *     DUE              0 or 1  If present DURATION MUST NOT be present
      *     DURATION         0 or 1  If present DUE MUST NOT be present
      *     EXDATE           0+
      *     EXRULE           0+
      *     GEO              0 or 1
      *     LAST-MODIFIED    0 or 1
      *     LOCATION         0 or 1
      *     PERCENT-COMPLETE 0 or 1
      *     PRIORITY         0 or 1
      *     RDATE            0+
      *     RELATED-TO       0+
      *     RESOURCES        0 or 1  This property may contain a list of values
      *     RRULE            0+
      *     RECURRENCE-ID    0 or 1  MUST only if referring to an instance of a
      *                              Recurring calendar component. Otherwise it
      *                              MUST NOT be present
      *     SEQUENCE         0 or 1  MUST be the sequence number of
      *                              the original REQUEST if greater than 0.
      *                              MAY be present if 0.
      *     STATUS           0 or 1
      *     SUMMARY          0 or 1  Can be null
      *     URL              0 or 1
      *     X-PROPERTY       0+
      *
      * VTIMEZONE            0 or 1  MUST be present if any date/time refers to
      *                              a timezone
      * X-COMPONENT          0+
      *
      * VALARM               0
      * VEVENT               0
      * VFREEBUSY            0
      * </pre>
      *
      */
     private class ReplyValidator implements Validator {
 		private static final long serialVersionUID = 1L;
         public void validate() throws ValidationException {
             PropertyValidator.getInstance().assertOneOrMore(Property.ATTENDEE, getProperties());
             PropertyValidator.getInstance().assertOne(Property.DTSTAMP, getProperties());
             PropertyValidator.getInstance().assertOne(Property.ORGANIZER, getProperties());
             PropertyValidator.getInstance().assertOne(Property.UID, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.CATEGORIES, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.CLASS, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.CREATED, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.DESCRIPTION, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.DTSTART, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.DUE, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.DURATION, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.GEO, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.LAST_MODIFIED, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.LOCATION, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.PERCENT_COMPLETE, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.PRIORITY, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.RESOURCES, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.RECURRENCE_ID, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.SEQUENCE, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.STATUS, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.SUMMARY, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.URL, getProperties());
             ComponentValidator.assertNone(Component.VALARM, getAlarms());
         }
     }
     /**
      * <pre>
      * Component/Property  Presence
      * ------------------- ----------------------------------------------
      * METHOD                1       MUST be "REQUEST"
      * VTODO                 1+      All components must have the same UID
      *     ATTENDEE          1+
      *     DTSTAMP           1
      *     DTSTART           1
      *     ORGANIZER         1
      *     PRIORITY          1
      *     SEQUENCE          0 or 1  MUST be present if value is greater than
      *                               0, MAY be present if 0
      *     SUMMARY           1       Can be null.
      *     UID               1
      *
      *     ATTACH            0+
      *     CATEGORIES        0 or 1   This property may contain a list of
      *                                values
      *     CLASS             0 or 1
      *     COMMENT           0 or 1
      *     CONTACT           0+
      *     CREATED           0 or 1
      *     DESCRIPTION       0 or 1  Can be null
      *     DUE               0 or 1  If present DURATION MUST NOT be present
      *     DURATION          0 or 1  If present DUE MUST NOT be present
      *     EXDATE            0+
      *     EXRULE            0+
      *     GEO               0 or 1
      *     LAST-MODIFIED     0 or 1
      *     LOCATION          0 or 1
      *     PERCENT-COMPLETE  0 or 1
      *     RDATE             0+
      *     RECURRENCE-ID     0 or 1  present if referring to an instance of a
      *                               recurring calendar component.  Otherwise
      *                               it MUST NOT be present.
      *     RELATED-TO        0+
      *     RESOURCES         0 or 1  This property may contain a list of
      *                               values
      *     RRULE             0+
      *     STATUS            0 or 1  MAY be one of COMPLETED/NEEDS ACTION/IN-
      *                               PROCESS
      *     URL               0 or 1
      *     X-PROPERTY        0+
      *
      *     REQUEST-STATUS    0
      *
      * VALARM                0+
      *
      * VTIMEZONE             0+  MUST be present if any date/time refers
      *                           to a timezone
      * X-COMPONENT           0+
      *
      * VEVENT                0
      * VFREEBUSY             0
      * VJOURNAL              0
      * </pre>
      *
      */
     private class RequestValidator implements Validator {
 		private static final long serialVersionUID = 1L;
         public void validate() throws ValidationException {
             PropertyValidator.getInstance().assertOneOrMore(Property.ATTENDEE, getProperties());
             PropertyValidator.getInstance().assertOne(Property.DTSTAMP, getProperties());
             PropertyValidator.getInstance().assertOne(Property.DTSTART, getProperties());
             PropertyValidator.getInstance().assertOne(Property.ORGANIZER, getProperties());
             PropertyValidator.getInstance().assertOne(Property.PRIORITY, getProperties());
             PropertyValidator.getInstance().assertOne(Property.SUMMARY, getProperties());
             PropertyValidator.getInstance().assertOne(Property.UID, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.SEQUENCE, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.CATEGORIES, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.CLASS, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.CREATED, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.DESCRIPTION, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.DUE, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.DURATION, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.GEO, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.LAST_MODIFIED, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.LOCATION, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.PERCENT_COMPLETE, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.RECURRENCE_ID, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.RESOURCES, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.STATUS, getProperties());
             PropertyValidator.getInstance().assertOneOrLess(Property.URL, getProperties());
             PropertyValidator.getInstance().assertNone(Property.REQUEST_STATUS, getProperties());
             for (final Iterator i = getAlarms().iterator(); i.hasNext();) {
                 final VAlarm alarm = (VAlarm) i.next();
                 alarm.validate(Method.REQUEST);
             }
         }
     }
     /**
      * @return the optional access classification property
      */
     public final Clazz getClassification() {
         return (Clazz) getProperty(Property.CLASS);
     }
     /**
      * @return the optional date completed property
      */
     public final Completed getDateCompleted() {
         return (Completed) getProperty(Property.COMPLETED);
     }
     /**
      * @return the optional creation-time property
      */
     public final Created getCreated() {
         return (Created) getProperty(Property.CREATED);
     }
     /**
      * @return the optional description property
      */
     public final Description getDescription() {
         return (Description) getProperty(Property.DESCRIPTION);
     }
     /**
      * Convenience method to pull the DTSTART out of the property list.
      * @return The DtStart object representation of the start Date
      */
     public final DtStart getStartDate() {
         return (DtStart) getProperty(Property.DTSTART);
     }
     /**
      * @return the optional geographic position property
      */
     public final Geo getGeographicPos() {
         return (Geo) getProperty(Property.GEO);
     }
     /**
      * @return the optional last-modified property
      */
     public final LastModified getLastModified() {
         return (LastModified) getProperty(Property.LAST_MODIFIED);
     }
     /**
      * @return the optional location property
      */
     public final Location getLocation() {
         return (Location) getProperty(Property.LOCATION);
     }
     /**
      * @return the optional organizer property
      */
     public final Organizer getOrganizer() {
         return (Organizer) getProperty(Property.ORGANIZER);
     }
     /**
      * @return the optional percentage complete property
      */
     public final PercentComplete getPercentComplete() {
         return (PercentComplete) getProperty(Property.PERCENT_COMPLETE);
     }
     /**
      * @return the optional priority property
      */
     public final Priority getPriority() {
         return (Priority) getProperty(Property.PRIORITY);
     }
     /**
      * @return the optional date-stamp property
      */
     public final DtStamp getDateStamp() {
         return (DtStamp) getProperty(Property.DTSTAMP);
     }
     /**
      * @return the optional sequence number property
      */
     public final Sequence getSequence() {
         return (Sequence) getProperty(Property.SEQUENCE);
     }
     /**
      * @return the optional status property
      */
     public final Status getStatus() {
         return (Status) getProperty(Property.STATUS);
     }
     /**
      * @return the optional summary property
      */
     public final Summary getSummary() {
         return (Summary) getProperty(Property.SUMMARY);
     }
     /**
      * @return the optional URL property
      */
     public final Url getUrl() {
         return (Url) getProperty(Property.URL);
     }
     /**
      * @return the optional recurrence identifier property
      */
     public final RecurrenceId getRecurrenceId() {
         return (RecurrenceId) getProperty(Property.RECURRENCE_ID);
     }
     /**
      * @return the optional Duration property
      */
     public final Duration getDuration() {
         return (Duration) getProperty(Property.DURATION);
     }
     /**
      * @return the optional due property
      */
     public final Due getDue() {
         return (Due) getProperty(Property.DUE);
     }
     /**
      * Returns the UID property of this component if available.
      * @return a Uid instance, or null if no UID property exists
      */
     public final Uid getUid() {
         return (Uid) getProperty(Property.UID);
     }
     /**
      * {@inheritDoc}
      */
     public boolean equals(final Object arg0) {
         if (arg0 instanceof VToDo) {
             return super.equals(arg0)
                     && ObjectUtils.equals(alarms, ((VToDo) arg0).getAlarms());
         }
         return super.equals(arg0);
     }
     /**
      * {@inheritDoc}
      */
     public int hashCode() {
         return new HashCodeBuilder().append(getName()).append(getProperties())
                 .append(getAlarms()).toHashCode();
     }
     /**
      * Overrides default copy method to add support for copying alarm sub-components.
      * @return a copy of the instance
      * @throws ParseException where an error occurs parsing data
      * @throws IOException where an error occurs reading data
      * @throws URISyntaxException where an invalid URI is encountered
      * @see net.fortuna.ical4j.model.Component#copy()
      */
     public Component copy() throws ParseException, IOException, URISyntaxException {
         final VToDo copy = (VToDo) super.copy();
         copy.alarms = new ComponentList(alarms);
         return copy;
     }
 }

Caldavsync Sources / annotate

src/net/fortuna/ical4j/model/component/VToDo.java@45d57ecba757 (annotated)

src/net/fortuna/ical4j/model/component/VToDo.java