001    /*
002     * Copyright (c) 2005 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.metro.tools;
020    
021    import net.dpml.state.DefaultInterface;
022    
023    import org.apache.tools.ant.BuildException;
024    
025    /**
026     * Defintion of a context entry parameter directive.
027     *
028     * @author <a href="http://www.dpml.net">Digital Product Meta Library</a>
029     * @version 1.0.0
030     */
031    public class InterfaceDataType
032    {
033        private String m_name;
034        private String m_classname;
035    
036       /**
037        * Set the operation name.
038        * @param name the operation name
039        */
040        public void setName( final String name )
041        {
042            if( null == name )
043            {
044                throw new NullPointerException( "name" );
045            }
046            m_name = name;
047        }
048    
049       /**
050        * Set the operation method name.
051        * @param classname the name of the interface class
052        */
053        public void setClass( final String classname )
054        {
055            if( null == classname )
056            {
057                throw new NullPointerException( "classname" );
058            }
059            m_classname = classname;
060        }
061        
062        DefaultInterface getInterface()
063        {
064            final String classname = getInterfaceClassname();
065            return new DefaultInterface( classname );
066        }
067        
068        String getInterfaceClassname()
069        {
070            if( null != m_classname )
071            {
072                return m_classname;
073            }
074            else
075            {
076                throw new BuildException( "Missing interface 'classname' attribute." );
077            }
078        }
079    }