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https://issues.apache.org/jira/browse/BEAM-10097?focusedWorklogId=446132&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-446132
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ASF GitHub Bot logged work on BEAM-10097:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 15/Jun/20 21:25
Start Date: 15/Jun/20 21:25
Worklog Time Spent: 10m
Work Description: ibzib commented on a change in pull request #11821:
URL: https://github.com/apache/beam/pull/11821#discussion_r440456092
##########
File path: sdks/java/core/src/main/java/org/apache/beam/sdk/transforms/View.java
##########
@@ -157,7 +166,10 @@ private View() {}
* PCollectionView} mapping each window to a {@link List} containing all of
the elements in the
* window.
*
- * <p>Unlike with {@link #asIterable}, the resulting list is required to fit
in memory.
+ * <p>This view should only be used if random access and/or size of the
PCollection is required.
+ * {@link #asIterable()} will perform significantly better for sequential
access.
Review comment:
Thanks for the explanation.
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Issue Time Tracking
-------------------
Worklog Id: (was: 446132)
Time Spent: 7.5h (was: 7h 20m)
> Migrate PCollection views to use both iterable and multimap
> materializations/access patterns
> --------------------------------------------------------------------------------------------
>
> Key: BEAM-10097
> URL: https://issues.apache.org/jira/browse/BEAM-10097
> Project: Beam
> Issue Type: Improvement
> Components: sdk-java-core, sdk-java-harness
> Reporter: Luke Cwik
> Assignee: Luke Cwik
> Priority: P2
> Time Spent: 7.5h
> Remaining Estimate: 0h
>
> Currently all the PCollection views have a trival mapping from KV<void,
> Iterable<T>> to the view that is being requested (singleton, iterable, list,
> map, multimap.
> We should be using the primitive views (iterable, multimap) directly without
> going through the naive mapping.
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