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