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https://issues.apache.org/jira/browse/FLINK-4456?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15464801#comment-15464801
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ASF GitHub Bot commented on FLINK-4456:
---------------------------------------
Github user tillrohrmann commented on a diff in the pull request:
https://github.com/apache/flink/pull/2456#discussion_r77508917
--- Diff:
flink-runtime/src/main/java/org/apache/flink/runtime/taskmanager/TaskExecutionStateListener.java
---
@@ -0,0 +1,29 @@
+/*
+ * 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.runtime.taskmanager;
+
+public interface TaskExecutionStateListener {
+
+ /**
+ * Called whenever the task's execution state changes
+ *
+ * @param taskExecutionState describing the task execution state change
+ */
+ void notifyTaskExecutionState(TaskExecutionState taskExecutionState);
--- End diff --
Yes, can rename.
> Replace ActorGateway in Task by interface
> -----------------------------------------
>
> Key: FLINK-4456
> URL: https://issues.apache.org/jira/browse/FLINK-4456
> Project: Flink
> Issue Type: Improvement
> Components: TaskManager
> Reporter: Till Rohrmann
> Assignee: Till Rohrmann
>
> The {{Task}} communicates with the outside world ({{JobManager}} and
> {{TaskManager}}) via {{ActorGateways}}. This bakes in the dependency on
> actors.
> In terms of modularization and an improved abstraction (especially wrt
> Flip-6) I propose to replace the {{ActorGateways}} by interfaces which
> exposes the required methods. The current implementation would then simply
> wrap the method calls in messages and send them via the {{ActorGateway}} to
> the recipient.
> In Flip-6 the {{JobMaster}} could simply implement these interfaces as part
> of their RPC contract.
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