diff -r 000000000000 -r fb9019fb1bf7 src/net/fortuna/ical4j/model/property/Sequence.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/net/fortuna/ical4j/model/property/Sequence.java Tue Feb 10 18:12:00 2015 +0100 @@ -0,0 +1,204 @@ +/** + * 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.property; + +import net.fortuna.ical4j.model.ParameterList; +import net.fortuna.ical4j.model.Property; +import net.fortuna.ical4j.model.PropertyFactoryImpl; +import net.fortuna.ical4j.model.ValidationException; + +/** + * $Id$ + * + * Created: [Apr 6, 2004] + * + * Defines a SEQUENCE iCalendar component property. + * + * 
+ *     4.8.7.4 Sequence Number
+ *     
+ *        Property Name: SEQUENCE
+ *     
+ *        Purpose: This property defines the revision sequence number of the
+ *        calendar component within a sequence of revisions.
+ *     
+ *        Value Type: integer
+ *     
+ *        Property Parameters: Non-standard property parameters can be
+ *        specified on this property.
+ *     
+ *        Conformance: The property can be specified in "VEVENT", "VTODO" or
+ *        "VJOURNAL" calendar component.
+ *     
+ *        Description: When a calendar component is created, its sequence
+ *        number is zero (US-ASCII decimal 48). It is monotonically incremented
+ *        by the "Organizer's" CUA each time the "Organizer" makes a
+ *        significant revision to the calendar component. When the "Organizer"
+ *        makes changes to one of the following properties, the sequence number
+ *        MUST be incremented:
+ *     
+ *          .  "DTSTART"
+ *     
+ *          .  "DTEND"
+ *     
+ *          .  "DUE"
+ *     
+ *          .  "RDATE"
+ *     
+ *          .  "RRULE"
+ *     
+ *          .  "EXDATE"
+ *     
+ *          .  "EXRULE"
+ *     
+ *          .  "STATUS"
+ *     
+ *        In addition, changes made by the "Organizer" to other properties can
+ *        also force the sequence number to be incremented. The "Organizer" CUA
+ *        MUST increment the sequence number when ever it makes changes to
+ *        properties in the calendar component that the "Organizer" deems will
+ *        jeopardize the validity of the participation status of the
+ *        "Attendees". For example, changing the location of a meeting from one
+ *        locale to another distant locale could effectively impact the
+ *        participation status of the "Attendees".
+ *     
+ *        The "Organizer" includes this property in an iCalendar object that it
+ *        sends to an "Attendee" to specify the current version of the calendar
+ *        component.
+ *     
+ *        The "Attendee" includes this property in an iCalendar object that it
+ *        sends to the "Organizer" to specify the version of the calendar
+ *        component that the "Attendee" is referring to.
+ *     
+ *        A change to the sequence number is not the mechanism that an
+ *        "Organizer" uses to request a response from the "Attendees". The
+ *        "RSVP" parameter on the "ATTENDEE" property is used by the
+ *        "Organizer" to indicate that a response from the "Attendees" is
+ *        requested.
+ *     
+ *        Format Definition: This property is defined by the following
+ *        notation:
+ *     
+ *          seq = "SEQUENCE" seqparam ":" integer CRLF
+ *          ; Default is "0"
+ *     
+ *          seqparam   = *(";" xparam)
+ *     
+ *        Example: The following is an example of this property for a calendar
+ *        component that was just created by the "Organizer".
+ *     
+ *          SEQUENCE:0
+ *     
+ *        The following is an example of this property for a calendar component
+ *        that has been revised two different times by the "Organizer".
+ *     
+ *          SEQUENCE:2
+ *
+ * + * @author Ben Fortuna + */ +public class Sequence extends Property { + + private static final long serialVersionUID = -1606972893204822853L; + + private int sequenceNo; + + /** + * Default constructor. + */ + public Sequence() { + super(SEQUENCE, PropertyFactoryImpl.getInstance()); + sequenceNo = 0; + } + + /** + * @param aValue a value string for this component + */ + public Sequence(final String aValue) { + super(SEQUENCE, PropertyFactoryImpl.getInstance()); + setValue(aValue); + } + + /** + * @param aList a list of parameters for this component + * @param aValue a value string for this component + */ + public Sequence(final ParameterList aList, final String aValue) { + super(SEQUENCE, aList, PropertyFactoryImpl.getInstance()); + setValue(aValue); + } + + /** + * @param aSequenceNo a sequence number + */ + public Sequence(final int aSequenceNo) { + super(SEQUENCE, PropertyFactoryImpl.getInstance()); + sequenceNo = aSequenceNo; + } + + /** + * @param aList a list of parameters for this component + * @param aSequenceNo a sequence number + */ + public Sequence(final ParameterList aList, final int aSequenceNo) { + super(SEQUENCE, aList, PropertyFactoryImpl.getInstance()); + sequenceNo = aSequenceNo; + } + + /** + * @return Returns the sequenceNo. + */ + public final int getSequenceNo() { + return sequenceNo; + } + + /** + * {@inheritDoc} + */ + public final void setValue(final String aValue) { + sequenceNo = Integer.parseInt(aValue); + } + + /** + * {@inheritDoc} + */ + public final String getValue() { + return String.valueOf(getSequenceNo()); + } + + /** + * {@inheritDoc} + */ + public final void validate() throws ValidationException { + // TODO: Auto-generated method stub + } +}