| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.cocoon.components.elementprocessor.types; |
| |
| import java.io.IOException; |
| |
| /** |
| * This interface allows a client of NumericConverter to apply more |
| * restrictive rules to the number that the NumericConverter obtained. |
| * |
| * @author Marc Johnson (marc_johnson27591@hotmail.com) |
| * @version CVS $Id$ |
| */ |
| public interface Validator |
| { |
| |
| /** |
| * Is this number valid? If so, return a null |
| * IOException. Otherwise, return an IOException whose message |
| * explains why the number is not valid. |
| * |
| * @param number the Number holding the value. Guaranteed non-null |
| * |
| * @return a null IOException if the value is ok, else a real |
| * IOException |
| */ |
| |
| public IOException validate(final Number number); |
| } // end public interface Validator |
