001    /*
002     * Copyright 2006 Stephen J. McConnell.
003     *
004     * Licensed  under the  Apache License,  Version 2.0  (the "License");
005     * you may not use  this file  except in  compliance with the License.
006     * You may obtain a copy of the License at
007     *
008     *   http://www.apache.org/licenses/LICENSE-2.0
009     *
010     * Unless required by applicable law or agreed to in writing, software
011     * distributed  under the  License is distributed on an "AS IS" BASIS,
012     * WITHOUT  WARRANTIES OR CONDITIONS  OF ANY KIND, either  express  or
013     * implied.
014     *
015     * See the License for the specific language governing permissions and
016     * limitations under the License.
017     */
018    
019    package net.dpml.lang;
020    
021    import java.net.URI;
022    
023    /**
024     * Part info description.
025     *
026     * @author <a href="http://www.dpml.net">Digital Product Meta Library</a>
027     * @version 1.0.1
028     */
029    public final class Info extends AbstractDirective
030    {
031        private final String m_title;
032        private final String m_description;
033        private final URI m_uri;
034        
035       /**
036        * Creation of a new part info descriptor.
037        * @param uri the part uri
038        * @param title the title of the part
039        * @param description the part description
040        */
041        public Info( URI uri, String title, String description )
042        {
043            m_uri = uri;
044            m_title = title;
045            m_description = description;
046        }
047        
048       /**
049        * Get the part uri.
050        *
051        * @return the uri
052        */
053        public URI getURI()
054        {
055            return m_uri;
056        }
057        
058       /**
059        * Get the part title.
060        *
061        * @return the title
062        */
063        public String getTitle()
064        {
065            return m_title;
066        }
067        
068       /**
069        * Get the part description.
070        *
071        * @return the description
072        */
073        public String getDescription()
074        {
075            return m_description;
076        }
077        
078       /**
079        * Test if this instance is equal to the supplied instance.
080        * @param other the other instance
081        * @return the equality status
082        */
083        public boolean equals( Object other )
084        {
085            if( !super.equals( other ) )
086            {
087                return false;
088            }
089            else if( other instanceof Info )
090            {
091                Info info = (Info) other;
092                if( !equals( m_title, info.m_title ) )
093                {
094                    return false;
095                }
096                else
097                {
098                    return equals( m_description, info.m_description );
099                }
100            }
101            else
102            {
103                return false;
104            }
105        }
106        
107       /**
108        * Get the hashcode for this instance.
109        * @return the hash value
110        */
111        public int hashCode()
112        {
113            int hash = super.hashCode();
114            hash ^= hashValue( m_title );
115            hash ^= hashValue( m_description );
116            return hash;
117        }
118    }