001    package ezvcard.parameter;
002    
003    /*
004     Copyright (c) 2013, Michael Angstadt
005     All rights reserved.
006    
007     Redistribution and use in source and binary forms, with or without
008     modification, are permitted provided that the following conditions are met: 
009    
010     1. Redistributions of source code must retain the above copyright notice, this
011     list of conditions and the following disclaimer. 
012     2. Redistributions in binary form must reproduce the above copyright notice,
013     this list of conditions and the following disclaimer in the documentation
014     and/or other materials provided with the distribution. 
015    
016     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
017     ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
018     WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
019     DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
020     ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
021     (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
022     LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
023     ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
024     (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
025     SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
026    
027     The views and conclusions contained in the software and documentation are those
028     of the authors and should not be interpreted as representing official policies, 
029     either expressed or implied, of the FreeBSD Project.
030     */
031    
032    /**
033     * Represents a vCard parameter (aka "sub type") whose values are pre-defined.
034     * @author Michael Angstadt
035     */
036    public class VCardParameter {
037            /**
038             * The value (for example, "home").
039             */
040            protected final String value;
041    
042            /**
043             * Creates a new parameter.
044             * @param value the value
045             */
046            public VCardParameter(String value) {
047                    this.value = (value == null) ? null : value.toLowerCase();
048            }
049    
050            /**
051             * Gets the value of the parameter.
052             * @return the value of the parameter (e.g. "home")
053             */
054            public String getValue() {
055                    return value;
056            }
057    
058            @Override
059            public String toString() {
060                    return value;
061            }
062    
063            @Override
064            public int hashCode() {
065                    final int prime = 31;
066                    int result = 1;
067                    result = prime * result + ((value == null) ? 0 : value.hashCode());
068                    return result;
069            }
070    
071            @Override
072            public boolean equals(Object obj) {
073                    if (this == obj)
074                            return true;
075                    if (obj == null)
076                            return false;
077                    if (getClass() != obj.getClass())
078                            return false;
079                    VCardParameter other = (VCardParameter) obj;
080                    if (value == null) {
081                            if (other.value != null)
082                                    return false;
083                    } else if (!value.equals(other.value))
084                            return false;
085                    return true;
086            }
087    }