001    package biweekly.parameter;
002    
003    import java.util.Collection;
004    
005    /*
006     Copyright (c) 2013, Michael Angstadt
007     All rights reserved.
008    
009     Redistribution and use in source and binary forms, with or without
010     modification, are permitted provided that the following conditions are met: 
011    
012     1. Redistributions of source code must retain the above copyright notice, this
013     list of conditions and the following disclaimer. 
014     2. Redistributions in binary form must reproduce the above copyright notice,
015     this list of conditions and the following disclaimer in the documentation
016     and/or other materials provided with the distribution. 
017    
018     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
019     ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
020     WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
021     DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
022     ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
023     (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
024     LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
025     ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
026     (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
027     SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
028     */
029    
030    /**
031     * Defines how a property value is encoded.
032     * @author Michael Angstadt
033     * @rfc 5545 p.18-9
034     */
035    public class Encoding extends EnumParameterValue {
036            private static final ICalParameterCaseClasses<Encoding> enums = new ICalParameterCaseClasses<Encoding>(Encoding.class);
037    
038            public static final Encoding BASE64 = new Encoding("BASE64");
039    
040            public static final Encoding _8BIT = new Encoding("8BIT");
041    
042            private Encoding(String value) {
043                    super(value);
044            }
045    
046            /**
047             * Searches for a parameter value that is defined as a static constant in
048             * this class.
049             * @param value the parameter value
050             * @return the object or null if not found
051             */
052            public static Encoding find(String value) {
053                    return enums.find(value);
054            }
055    
056            /**
057             * Searches for a parameter value and creates one if it cannot be found. All
058             * objects are guaranteed to be unique, so they can be compared with
059             * {@code ==} equality.
060             * @param value the parameter value
061             * @return the object
062             */
063            public static Encoding get(String value) {
064                    return enums.get(value);
065            }
066    
067            /**
068             * Gets all of the parameter values that are defined as static constants in
069             * this class.
070             * @return the parameter values
071             */
072            public static Collection<Encoding> all() {
073                    return enums.all();
074            }
075    }