1 /*
2 * Copyright 2004 the original author or authors.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16 package com.ancientprogramming.fixedformat4j.format;
17
18 import com.ancientprogramming.fixedformat4j.annotation.Field;
19 import com.ancientprogramming.fixedformat4j.exception.FixedFormatException;
20 import com.ancientprogramming.fixedformat4j.format.impl.DateFormatter;
21
22 /**
23 * Formatter capable of transforming data to and from a string used in text records.
24 * <p/>
25 * A concrete class is used together with the @{@link Field} annotation.
26 * <p/>
27 * Example: <p><code>@Field(offset = 1, length = 20, formatter = {@link DateFormatter}.class)</code></p>
28 *
29 * @author Jacob von Eyben - http://www.ancientprogramming.com
30 * @since 1.0.0
31 */
32 public interface FixedFormatter<T> {
33
34 T parse(String value, FormatInstructions instructions) throws FixedFormatException;
35
36 String format(T value, FormatInstructions instructions) throws FixedFormatException;
37 }