[
https://issues.apache.org/jira/browse/BEAM-9825?focusedWorklogId=433483&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-433483
]
ASF GitHub Bot logged work on BEAM-9825:
----------------------------------------
Author: ASF GitHub Bot
Created on: 15/May/20 02:19
Start Date: 15/May/20 02:19
Worklog Time Spent: 10m
Work Description: darshanj commented on a change in pull request #11610:
URL: https://github.com/apache/beam/pull/11610#discussion_r425529534
##########
File path:
sdks/java/core/src/main/java/org/apache/beam/sdk/transforms/SetFns.java
##########
@@ -0,0 +1,528 @@
+/*
+ * 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.sdk.transforms;
+
+import static
org.apache.beam.vendor.guava.v26_0_jre.com.google.common.base.Preconditions.checkNotNull;
+
+import java.util.ArrayList;
+import java.util.List;
+import org.apache.beam.sdk.Pipeline;
+import org.apache.beam.sdk.transforms.join.CoGbkResult;
+import org.apache.beam.sdk.transforms.join.CoGroupByKey;
+import org.apache.beam.sdk.transforms.join.KeyedPCollectionTuple;
+import org.apache.beam.sdk.values.KV;
+import org.apache.beam.sdk.values.PCollection;
+import org.apache.beam.sdk.values.PCollectionList;
+import org.apache.beam.sdk.values.TupleTag;
+import
org.apache.beam.vendor.guava.v26_0_jre.com.google.common.collect.Iterables;
+
+public class SetFns {
Review comment:
Added Comments for coders.
Regarding triggers, I assume, multiple triggers should work if they are
compatible.
It uses CGBK (internally uses flattens) , which checks if triggers
compatible and windowFns are compatible. User will get results based on
whatever data is triggered.
My understanding may be flawed. Please correct if you think that is not the
case.
I have added a comment for compatible triggers and same windowFns.
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Issue Time Tracking
-------------------
Worklog Id: (was: 433483)
Remaining Estimate: 88h 50m (was: 89h)
Time Spent: 7h 10m (was: 7h)
> Transforms for Intersect, IntersectAll, Except, ExceptAll, Union, UnionAll
> --------------------------------------------------------------------------
>
> Key: BEAM-9825
> URL: https://issues.apache.org/jira/browse/BEAM-9825
> Project: Beam
> Issue Type: New Feature
> Components: sdk-java-core
> Reporter: Darshan Jani
> Assignee: Darshan Jani
> Priority: Major
> Original Estimate: 96h
> Time Spent: 7h 10m
> Remaining Estimate: 88h 50m
>
> I'd like to propose following new high-level transforms.
> * Intersect
> Compute the intersection between elements of two PCollection.
> Given _leftCollection_ and _rightCollection_, this transform returns a
> collection containing elements that common to both _leftCollection_ and
> _rightCollection_
>
> * Except
> Compute the difference between elements of two PCollection.
> Given _leftCollection_ and _rightCollection_, this transform returns a
> collection containing elements that are in _leftCollection_ but not in
> _rightCollection_
> * Union
> Find the elements that are either of two PCollection.
> Implement IntersetAll, ExceptAll and UnionAll variants of transforms.
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