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https://issues.apache.org/jira/browse/FLINK-3647?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15346360#comment-15346360
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ASF GitHub Bot commented on FLINK-3647:
---------------------------------------
Github user aljoscha commented on a diff in the pull request:
https://github.com/apache/flink/pull/2124#discussion_r68227049
--- Diff:
flink-streaming-java/src/main/java/org/apache/flink/streaming/api/windowing/assigners/WindowAssignerContext.java
---
@@ -0,0 +1,37 @@
+/*
+ * 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.streaming.runtime.tasks.StreamTask;
+
+/**
+ * A context provided to the {@link WindowAssigner} that allows it to
query the
+ * current processing time. This is provided to the assigner by its
containing
+ * {@link
org.apache.flink.streaming.runtime.operators.windowing.WindowOperator},
+ * which, in turn, gets it from the containing
+ * {@link org.apache.flink.streaming.runtime.tasks.StreamTask}.
+ */
+public abstract class WindowAssignerContext {
--- End diff --
This should be moved to `WindowAssigner`, similarly to how `TriggerContext`
is an inner class of `Trigger`.
> Change StreamSource to use Processing-Time Clock Service
> --------------------------------------------------------
>
> Key: FLINK-3647
> URL: https://issues.apache.org/jira/browse/FLINK-3647
> Project: Flink
> Issue Type: Sub-task
> Components: Streaming
> Reporter: Aljoscha Krettek
> Assignee: Kostas Kloudas
>
> Currently, the {{StreamSource.AutomaticWatermarkContext}} has it's own timer
> service. This should be changed to use the Clock service introduced in
> FLINK-3646 to make watermark emission testable by providing a custom Clock.
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