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comparison src/java/org/apache/cassandra/db/Row.java @ 0:d485154379c8 default tip

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apache-cassandra-0.6.0-rc1-src
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Fri, 02 Apr 2010 13:36:02 +0900
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1 /**
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 */
18
19 package org.apache.cassandra.db;
20
21 import java.io.DataInputStream;
22 import java.io.DataOutputStream;
23 import java.io.IOException;
24 import java.util.Collection;
25 import java.security.MessageDigest;
26 import java.security.NoSuchAlgorithmException;
27
28 import org.apache.log4j.Logger;
29
30 import org.apache.cassandra.io.ICompactSerializer;
31
32 public class Row
33 {
34 private static Logger logger_ = Logger.getLogger(Row.class);
35 private static RowSerializer serializer = new RowSerializer();
36
37 static RowSerializer serializer()
38 {
39 return serializer;
40 }
41
42 public final String key;
43 public final ColumnFamily cf;
44
45 public Row(String key, ColumnFamily cf)
46 {
47 assert key != null;
48 // cf may be null, indicating no data
49 this.key = key;
50 this.cf = cf;
51 }
52
53 @Override
54 public String toString()
55 {
56 return "Row(" +
57 "key='" + key + '\'' +
58 ", cf=" + cf +
59 ')';
60 }
61 }
62
63 class RowSerializer implements ICompactSerializer<Row>
64 {
65 public void serialize(Row row, DataOutputStream dos) throws IOException
66 {
67 dos.writeUTF(row.key);
68 ColumnFamily.serializer().serialize(row.cf, dos);
69 }
70
71 public Row deserialize(DataInputStream dis) throws IOException
72 {
73 return new Row(dis.readUTF(), ColumnFamily.serializer().deserialize(dis));
74 }
75 }