001    // Copyright 2009 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.tapestry5.internal.translator;
016    
017    import java.text.ParseException;
018    
019    /**
020     * Interface for defining the basic parse and toClient operations. The typical implementation is based on {@link
021     * java.text.NumberFormat} but alternate implementations are used for BigInteger and BigDecimal.
022     *
023     * @since 5.1.0.1
024     */
025    public interface NumericFormatter
026    {
027        /**
028         * Parses a value from the client in a locale-specific way.
029         */
030        Number parse(String clientValue) throws ParseException;
031    
032        /**
033         * Formats a value for the client in a locale-specific way.
034         */
035        String toClient(Number value);
036    }