001    // Copyright 2005 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    
015    package org.apache.tapestry.coerce;
016    
017    import org.apache.tapestry.TapestryUtils;
018    
019    /**
020     * Converts a string to a {@link org.apache.tapestry.form.IPropertySelectionModel}. The string is
021     * broken apart at commas into terms. Each term consists of a label (displayed to the user) and a
022     * value (used as a client-side value and as the server-side property) seperated by an equals sign;
023     * if the equals sign is omitted, then the value is the same as the label.
024     * 
025     * @author Howard M. Lewis Ship
026     * @since 4.0
027     */
028    public final class StringToPropertySelectionModelConverter implements TypeConverter
029    {
030        public Object convertValue(Object value)
031        {
032            String input = (String) value;
033    
034            String[] terms = TapestryUtils.split(input);
035    
036            return new StringConvertedPropertySelectionModel(terms);
037        }
038    
039    }