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From davidyan74 <...@git.apache.org>
Subject [GitHub] apex-malhar pull request #319: APEXMALHAR-2085: REVIEW ONLY: Operator suppor...
Date Fri, 24 Jun 2016 19:30:15 GMT
Github user davidyan74 commented on a diff in the pull request:

    --- Diff: library/src/main/java/org/apache/apex/malhar/lib/window/impl/AbstractWindowedOperator.java
    @@ -0,0 +1,484 @@
    + * 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
    + * KIND, either express or implied.  See the License for the
    + * specific language governing permissions and limitations
    + * under the License.
    + */
    +package org.apache.apex.malhar.lib.window.impl;
    +import java.util.ArrayList;
    +import java.util.Iterator;
    +import java.util.List;
    +import java.util.Map;
    +import javax.validation.ValidationException;
    +import org.joda.time.Duration;
    +import org.slf4j.Logger;
    +import org.slf4j.LoggerFactory;
    +import org.apache.apex.malhar.lib.window.Accumulation;
    +import org.apache.apex.malhar.lib.window.ControlTuple;
    +import org.apache.apex.malhar.lib.window.TriggerOption;
    +import org.apache.apex.malhar.lib.window.Tuple;
    +import org.apache.apex.malhar.lib.window.Window;
    +import org.apache.apex.malhar.lib.window.WindowOption;
    +import org.apache.apex.malhar.lib.window.WindowState;
    +import org.apache.apex.malhar.lib.window.WindowedOperator;
    +import org.apache.apex.malhar.lib.window.WindowedStorage;
    +import com.google.common.base.Function;
    +import com.datatorrent.api.Context;
    +import com.datatorrent.api.DefaultInputPort;
    +import com.datatorrent.api.DefaultOutputPort;
    +import com.datatorrent.api.annotation.InputPortFieldAnnotation;
    +import com.datatorrent.common.util.BaseOperator;
    + * This is the abstract windowed operator class that implements most of the windowing,
triggering, and accumulating
    + * concepts. The subclass of this abstract class is supposed to provide the implementation
of how the accumulated
    + * values are stored in the storage.
    + *
    + */
    +public abstract class AbstractWindowedOperator<InputT, AccumT, OutputT, DataStorageT
extends WindowedStorage, AccumulationT extends Accumulation>
    --- End diff --
    Good point. done.

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