Github user isper3at commented on a diff in the pull request:
https://github.com/apache/incubator-rya/pull/296#discussion_r187708536
--- Diff:
extras/kafka.connect/api/src/main/java/org/apache/rya/kafka/connect/api/sink/RyaSinkTask.java
---
@@ -0,0 +1,144 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.rya.kafka.connect.api.sink;
+
+import static java.util.Objects.requireNonNull;
+
+import java.util.Collection;
+import java.util.Map;
+import java.util.Set;
+
+import org.apache.kafka.clients.consumer.OffsetAndMetadata;
+import org.apache.kafka.common.TopicPartition;
+import org.apache.kafka.connect.errors.ConnectException;
+import org.apache.kafka.connect.sink.SinkRecord;
+import org.apache.kafka.connect.sink.SinkTask;
+import org.eclipse.rdf4j.model.Statement;
+import org.eclipse.rdf4j.repository.sail.SailRepository;
+import org.eclipse.rdf4j.repository.sail.SailRepositoryConnection;
+import org.eclipse.rdf4j.sail.Sail;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.jcabi.manifests.Manifests;
+
+import edu.umd.cs.findbugs.annotations.DefaultAnnotation;
+import edu.umd.cs.findbugs.annotations.NonNull;
+import edu.umd.cs.findbugs.annotations.Nullable;
+
+/**
+ * Handles the common components required to write {@link Statement}s to
Rya.
+ * <p/>
+ * Implementations of this class only need to specify functionality that
is specific to the
+ * Rya implementation.
+ */
+@DefaultAnnotation(NonNull.class)
--- End diff --
maybe I'm not clear what this annotation does, but again, all the fields
are declared Nullable
---
