riak-java-client 是 Riak 的 Java 客户端开发类库，示例代码：

// create a client (see Configuration below in this README for more details)  IRiakClient riakClient = RiakFactory.pbcClient(); //or RiakFactory.httpClient();    // create a new bucket  Bucket myBucket = riakClient.createBucket("myBucket").execute();    // add data to the bucket  myBucket.store("key1", "value1").execute();    //fetch it back  IRiakObject myData = myBucket.fetch("key1").execute();    // you can specify extra parameters to the store operation using the  // fluent builder style API  myData = myBucket.store("key1", "value2").returnBody(true).execute();    // delete  myBucket.delete("key1").rw(3).execute();

项目主页：http://www.open-open.com/lib/view/home/1338552905260