flink-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From tillrohrmann <...@git.apache.org>
Subject [GitHub] flink pull request: [FLINK-3332] Cassandra connector
Date Thu, 11 Feb 2016 16:12:48 GMT
Github user tillrohrmann commented on a diff in the pull request:

    --- Diff: flink-streaming-java/src/main/java/org/apache/flink/streaming/runtime/operators/GenericExactlyOnceSink.java
    @@ -0,0 +1,173 @@
    + * 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
    + * <p/>
    + * http://www.apache.org/licenses/LICENSE-2.0
    + * <p/>
    + * 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.flink.streaming.runtime.operators;
    +import org.apache.flink.api.common.ExecutionConfig;
    +import org.apache.flink.api.common.typeinfo.TypeInformation;
    +import org.apache.flink.api.common.typeutils.TypeSerializer;
    +import org.apache.flink.api.java.tuple.Tuple;
    +import org.apache.flink.api.java.typeutils.TypeExtractor;
    +import org.apache.flink.core.memory.DataInputView;
    +import org.apache.flink.runtime.state.AbstractStateBackend;
    +import org.apache.flink.runtime.state.StateHandle;
    +import org.apache.flink.streaming.api.operators.AbstractStreamOperator;
    +import org.apache.flink.streaming.api.operators.OneInputStreamOperator;
    +import org.apache.flink.streaming.api.watermark.Watermark;
    +import org.apache.flink.streaming.runtime.streamrecord.StreamRecord;
    +import org.apache.flink.streaming.runtime.tasks.StreamTaskState;
    +import java.io.IOException;
    +import java.io.Serializable;
    +import java.util.ArrayList;
    +import java.util.HashMap;
    +import java.util.HashSet;
    +import java.util.List;
    +import java.util.Set;
    + * Generic Sink that emits its input elements into an arbitrary backend. This sink is
integrated with the checkpointing
    + * mechanism to provide exactly once semantics.
    + *
    + * Incoming records are stored within a {@link org.apache.flink.runtime.state.AbstractStateBackend},
and only committed if a
    + * checkpoint is completed. Should a job fail while the data is being committed, no exactly
once guarantee can be made.
    + * @param <IN>
    + */
    +public abstract class GenericExactlyOnceSink<IN extends Tuple> extends AbstractStreamOperator<IN>
implements OneInputStreamOperator<IN, IN> {
    --- End diff --
    Can't the input type be a generic type?

If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at infrastructure@apache.org or file a JIRA ticket
with INFRA.

View raw message