1 /**
2 * Licensed to jclouds, Inc. (jclouds) under one or more
3 * contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. jclouds 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,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19 package org.jclouds.blobstore.attr;
20
21 /**
22 * Represents the ways data can become consistent in distributed systems.
23 *
24 * @author Adrian Cole
25 *
26 */
27 public enum ConsistencyModel {
28
29 /**
30 * Eventually, all updates will propagate through the system. However, reads do not always return
31 * the latest write.
32 */
33 EVENTUAL,
34 /**
35 * Reads return the latest write.
36 */
37 STRICT
38 }