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
015package org.apache.tapestry.coerce;
016
017import 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 */
028public 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}