001    package biweekly.property;
002    
003    import java.util.List;
004    
005    import biweekly.Warning;
006    import biweekly.component.ICalComponent;
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     * Represents a property whose data model consists of a single object (such as a
035     * String).
036     * @author Michael Angstadt
037     * @param <T> the value type (e.g. String)
038     */
039    public class ValuedProperty<T> extends ICalProperty {
040            protected T value;
041    
042            /**
043             * Creates a new valued property.
044             * @param value the property's value
045             */
046            public ValuedProperty(T value) {
047                    setValue(value);
048            }
049    
050            /**
051             * Gets the value of this property.
052             * @return the value
053             */
054            public T getValue() {
055                    return value;
056            }
057    
058            /**
059             * Sets the value of this property.
060             * @param value the value
061             */
062            public void setValue(T value) {
063                    this.value = value;
064            }
065    
066            @Override
067            protected void validate(List<ICalComponent> components, List<Warning> warnings) {
068                    if (value == null) {
069                            warnings.add(Warning.validate(26));
070                    }
071            }
072    }