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https://issues.apache.org/jira/browse/BEAM-3327?focusedWorklogId=97608&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-97608
]
ASF GitHub Bot logged work on BEAM-3327:
----------------------------------------
Author: ASF GitHub Bot
Created on: 02/May/18 17:40
Start Date: 02/May/18 17:40
Worklog Time Spent: 10m
Work Description: tgroh commented on a change in pull request #5152:
[BEAM-3327] Harness Manager Interfaces
URL: https://github.com/apache/beam/pull/5152#discussion_r185579308
##########
File path:
runners/java-fn-execution/src/main/java/org/apache/beam/runners/fnexecution/control/OutputReceiverFactory.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.beam.runners.fnexecution.control;
+
+/**
+ * A factory that can create output receivers during an executable stage.
+ */
+public interface OutputReceiverFactory {
+ /**
+ * Get a new {@link RemoteOutputReceiver} for an output PCollection.
+ */
+ <OutputT> RemoteOutputReceiver<OutputT> create(String pCollectionId);
Review comment:
This looks like it should be stateless, but as discussed with @bsidhom and
myself, it's probable that within a single instance the caller should only ever
invoke it once per `PCollection` - that ability should be commented explicitly,
just so other integrators can understand permitted scoping effectively.
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Issue Time Tracking
-------------------
Worklog Id: (was: 97608)
Time Spent: 28h 20m (was: 28h 10m)
> Add abstractions to manage Environment Instance lifecycles.
> -----------------------------------------------------------
>
> Key: BEAM-3327
> URL: https://issues.apache.org/jira/browse/BEAM-3327
> Project: Beam
> Issue Type: New Feature
> Components: runner-core
> Reporter: Thomas Groh
> Assignee: Axel Magnuson
> Priority: Major
> Labels: portability
> Time Spent: 28h 20m
> Remaining Estimate: 0h
>
> This permits remote stage execution for arbitrary environments
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