001    // Copyright Oct 1, 2006 The Apache Software Foundation
002    //
003    // Licensed under the Apache License, Version 2.0 (the "License");
004    // you may not use this file except in compliance with the License.
005    // You may obtain a copy of the License at
006    //
007    //     http://www.apache.org/licenses/LICENSE-2.0
008    //
009    // Unless required by applicable law or agreed to in writing, software
010    // distributed under the License is distributed on an "AS IS" BASIS,
011    // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012    // See the License for the specific language governing permissions and
013    // limitations under the License.
014    package org.apache.tapestry.coerce;
015    
016    import org.apache.tapestry.TapestryUtils;
017    
018    import java.util.Arrays;
019    import java.util.Collection;
020    
021    
022    /**
023     * Converts String values into {@link Collection} instances. String values can 
024     * be a single "string" or multiple strings delimited by a "," comma.
025     */
026    public final class StringToListConverter implements TypeConverter
027    {
028        /** 
029         * {@inheritDoc}
030         */
031        public Object convertValue(Object value)
032        {
033            String input = (String)value;
034            
035            String[] values = TapestryUtils.split(input);
036            
037            return Arrays.asList(values);
038        }
039    
040    }