1 /*
2 * Copyright 2010 The Apache Software Foundation
3 *
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing, software
15 * distributed under the License is distributed on an "AS IS" BASIS,
16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 * See the License for the specific language governing permissions and
18 * limitations under the License.
19 */
20
21 package org.apache.hadoop.hbase.rest.transform;
22
23 /**
24 * Data transformation module
25 */
26 public interface Transform {
27
28 /*** Transfer direction */
29 static enum Direction {
30 /** From client to server */
31 IN,
32 /** From server to client */
33 OUT
34 };
35
36 /**
37 * Transform data from one representation to another according to
38 * transfer direction.
39 * @param data input data
40 * @param direction IN or OUT
41 * @return the transformed data
42 */
43 byte[] transform (byte[] data, Direction direction);
44 }