CassandraJobStore implements JobStore { @Override public Completable storeJob(Job job) { return Observable .fromCallable((Callable<Statement>) () -> { String jobId = job.getId(); checkIfJobAlreadyExists(jobId); String jobJsonString = writeJobToString(job); int bucket = activeJobIdsBucketManager.getNextBucket(); activeJobIdsBucketManager.addItem(bucket, jobId); Statement jobStatement = insertActiveJobStatement.bind(jobId, jobJsonString); Statement jobIdStatement = insertActiveJobIdStatement.bind(bucket, jobId); BatchStatement batchStatement = new BatchStatement(); batchStatement.add(jobStatement); batchStatement.add(jobIdStatement); transactionLogger().logBeforeCreate(insertActiveJobStatement, "storeJob", job); return batchStatement; }) .flatMap(statement -> execute(statement) .doOnNext(rs -> transactionLogger().logAfterCreate(insertActiveJobStatement, "storeJob", job)) .doOnError(throwable -> activeJobIdsBucketManager.deleteItem(job.getId())) ) .toCompletable(); } @Inject  CassandraJobStore(CassandraStoreConfiguration configuration,
                             Session session,
                             TitusRuntime titusRuntime);   CassandraJobStore(CassandraStoreConfiguration configuration,
                      Session session,
                      TitusRuntime titusRuntime,
                      ObjectMapper mapper,
                      int initialBucketCount,
                      int maxBucketSize); @Override Completable init(); @Override Observable<Pair<List<Job<?>>, Integer>> retrieveJobs(); @Override Observable<Job<?>> retrieveJob(String jobId); @Override Completable storeJob(Job job); @Override Completable updateJob(Job job); @Override Completable deleteJob(Job job); @Override Observable<Pair<List<Task>, Integer>> retrieveTasksForJob(String jobId); @Override Observable<Task> retrieveTask(String taskId); @Override Completable storeTask(Task task); @Override Completable updateTask(Task task); @Override Completable replaceTask(Task oldTask, Task newTask); @Override Completable moveTask(Job jobFrom, Job jobTo, Task taskAfter); @Override Completable deleteTask(Task task); @Override Observable<Job<?>> retrieveArchivedJob(String jobId); @Override Observable<Task> retrieveArchivedTasksForJob(String jobId); @Override Observable<Task> retrieveArchivedTask(String taskId);  }
@Test public void testStoreJob() { JobStore store = getJobStore(); Job<BatchJobExt> job = createBatchJobObject(); store.init().await(); store.storeJob(job).await(); Pair<List<Job<?>>, Integer> jobsAndErrors = store.retrieveJobs().toBlocking().first(); assertThat(jobsAndErrors.getLeft().get(0)).isEqualTo(job); }