001    package biweekly.property;
002    
003    import java.util.List;
004    
005    import biweekly.Warning;
006    import biweekly.component.ICalComponent;
007    import biweekly.util.Recurrence;
008    
009    /*
010     Copyright (c) 2013, Michael Angstadt
011     All rights reserved.
012    
013     Redistribution and use in source and binary forms, with or without
014     modification, are permitted provided that the following conditions are met: 
015    
016     1. Redistributions of source code must retain the above copyright notice, this
017     list of conditions and the following disclaimer. 
018     2. Redistributions in binary form must reproduce the above copyright notice,
019     this list of conditions and the following disclaimer in the documentation
020     and/or other materials provided with the distribution. 
021    
022     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
023     ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
024     WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
025     DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
026     ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
027     (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
028     LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
029     ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
030     (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
031     SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
032     */
033    
034    /**
035     * <p>
036     * Defines how often a component repeats.
037     * </p>
038     * <p>
039     * <b>Examples:</b>
040     * 
041     * <pre class="brush:java">
042     * //&quot;bi-weekly&quot;
043     * Recurrence recur = new Recurrence.Builder(Frequency.WEEKLY).interval(2).build();
044     * RecurrenceRule rrule = new RecurrenceRule(recur);
045     * </pre>
046     * 
047     * </p>
048     * @author Michael Angstadt
049     * @rfc 5545 p.122-32
050     */
051    public class RecurrenceRule extends RecurrenceProperty {
052            /**
053             * Creates a new recurrence rule property.
054             * @param recur the recurrence rule
055             */
056            public RecurrenceRule(Recurrence recur) {
057                    super(recur);
058            }
059    
060            @Override
061            protected void validate(List<ICalComponent> components, List<Warning> warnings) {
062                    super.validate(components, warnings);
063                    if (value == null) {
064                            return;
065                    }
066    
067                    if (!value.getXRules().isEmpty()) {
068                            warnings.add(Warning.validate(32));
069                    }
070            }
071    }