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Posted to commits@flink.apache.org by al...@apache.org on 2018/09/26 10:04:37 UTC
[flink] branch master updated: [FLINK-10010] Mark
BaseAlignedWindowAssigner as deprecated
This is an automated email from the ASF dual-hosted git repository.
aljoscha pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/flink.git
The following commit(s) were added to refs/heads/master by this push:
new 1fb0636 [FLINK-10010] Mark BaseAlignedWindowAssigner as deprecated
1fb0636 is described below
commit 1fb0636830bedadd59bb21d00e24801c6ca86124
Author: Rong Rong <wa...@hotmail.com>
AuthorDate: Wed Aug 1 13:41:29 2018 -0700
[FLINK-10010] Mark BaseAlignedWindowAssigner as deprecated
And also remove SlidingAlignedProcessingTimeWindows
---
.../assigners/BaseAlignedWindowAssigner.java | 15 ++---
.../SlidingAlignedProcessingTimeWindows.java | 76 ----------------------
2 files changed, 6 insertions(+), 85 deletions(-)
diff --git a/flink-streaming-java/src/main/java/org/apache/flink/streaming/api/windowing/assigners/BaseAlignedWindowAssigner.java b/flink-streaming-java/src/main/java/org/apache/flink/streaming/api/windowing/assigners/BaseAlignedWindowAssigner.java
index 06e85e4..bbff850 100644
--- a/flink-streaming-java/src/main/java/org/apache/flink/streaming/api/windowing/assigners/BaseAlignedWindowAssigner.java
+++ b/flink-streaming-java/src/main/java/org/apache/flink/streaming/api/windowing/assigners/BaseAlignedWindowAssigner.java
@@ -27,15 +27,12 @@ import org.apache.flink.streaming.api.windowing.windows.TimeWindow;
import java.util.Collection;
/**
- * A base {@link WindowAssigner} used to instantiate one of the deprecated
- * {@link org.apache.flink.streaming.runtime.operators.windowing.AccumulatingProcessingTimeWindowOperator
- * AccumulatingProcessingTimeWindowOperator} and
- * {@link org.apache.flink.streaming.runtime.operators.windowing.AggregatingProcessingTimeWindowOperator
- * AggregatingProcessingTimeWindowOperator}.
+ * A base {@link WindowAssigner} used to instantiate one of the deprecated operators.
*
- * <p>For assigner that extend this one, the user can check the
- * {@link TumblingAlignedProcessingTimeWindows} and the {@link SlidingAlignedProcessingTimeWindows}.
- * */
+ * @deprecated will be removed in a future version. please use other {@link WindowAssigner}s listed under
+ * {@link org.apache.flink.streaming.api.windowing.assigners}.
+ */
+@Deprecated
public class BaseAlignedWindowAssigner extends WindowAssigner<Object, TimeWindow> {
private static final long serialVersionUID = -6214980179706960234L;
@@ -57,7 +54,7 @@ public class BaseAlignedWindowAssigner extends WindowAssigner<Object, TimeWindow
@Override
public Trigger<Object, TimeWindow> getDefaultTrigger(StreamExecutionEnvironment env) {
- return null;
+ throw new UnsupportedOperationException("This assigner should not be used with the WindowOperator.");
}
@Override
diff --git a/flink-streaming-java/src/main/java/org/apache/flink/streaming/api/windowing/assigners/SlidingAlignedProcessingTimeWindows.java b/flink-streaming-java/src/main/java/org/apache/flink/streaming/api/windowing/assigners/SlidingAlignedProcessingTimeWindows.java
deleted file mode 100644
index dc2984b..0000000
--- a/flink-streaming-java/src/main/java/org/apache/flink/streaming/api/windowing/assigners/SlidingAlignedProcessingTimeWindows.java
+++ /dev/null
@@ -1,76 +0,0 @@
-/*
- * 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.flink.streaming.api.windowing.assigners;
-
-import org.apache.flink.annotation.PublicEvolving;
-import org.apache.flink.streaming.api.windowing.time.Time;
-
-/**
- * This is a special window assigner used to tell the system to use the
- * <i>"Fast Aligned Processing Time Window Operator"</i> for windowing.
- *
- * <p>Prior Flink versions used that operator automatically for simple processing time
- * windows (tumbling and sliding) when no custom trigger and no evictor was specified.
- * In the current Flink version, that operator is only used when programs explicitly
- * specify this window assigner. This is only intended for special cases where programs relied on
- * the better performance of the fast aligned window operator, and are willing to accept the lack
- * of support for various features as indicated below:
- *
- * <ul>
- * <li>No custom state backend can be selected, the operator always stores data on the Java heap.</li>
- * <li>The operator does not support key groups, meaning it cannot change the parallelism.</li>
- * <li>Future versions of Flink may not be able to resume from checkpoints/savepoints taken by this
- * operator.</li>
- * </ul>
- *
- * <p>Future implementation plans: We plan to add some of the optimizations used by this operator to
- * the general window operator, so that future versions of Flink will not have the performance/functionality
- * trade-off any more.
- *
- * <p>Note on implementation: The concrete operator instantiated by this assigner is either the
- * {@link org.apache.flink.streaming.runtime.operators.windowing.AggregatingProcessingTimeWindowOperator}
- * or {@link org.apache.flink.streaming.runtime.operators.windowing.AccumulatingProcessingTimeWindowOperator}.
- */
-@PublicEvolving
-public final class SlidingAlignedProcessingTimeWindows extends BaseAlignedWindowAssigner {
-
- private static final long serialVersionUID = 3695562702662473688L;
-
- private final long slide;
-
- public SlidingAlignedProcessingTimeWindows(long size, long slide) {
- super(size);
- this.slide = slide;
- }
-
- public long getSlide() {
- return slide;
- }
-
- /**
- * Creates a new {@code SlidingAlignedProcessingTimeWindows} {@link WindowAssigner} that assigns
- * elements to sliding time windows based on the element timestamp.
- *
- * @param size The size of the generated windows.
- * @param slide The slide interval of the generated windows.
- */
- public static SlidingAlignedProcessingTimeWindows of(Time size, Time slide) {
- return new SlidingAlignedProcessingTimeWindows(size.toMilliseconds(), slide.toMilliseconds());
- }
-}