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Posted to issues@flink.apache.org by "Greg Hogan (JIRA)" <ji...@apache.org> on 2016/07/25 17:53:20 UTC
[jira] [Created] (FLINK-4265) Add a NoOpOperator
Greg Hogan created FLINK-4265:
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Summary: Add a NoOpOperator
Key: FLINK-4265
URL: https://issues.apache.org/jira/browse/FLINK-4265
Project: Flink
Issue Type: New Feature
Components: DataSet API
Affects Versions: 1.1.0
Reporter: Greg Hogan
Assignee: Greg Hogan
Priority: Minor
Fix For: 1.1.0
One recent feature of Gelly is algorithms which detect duplicated or similar computation which can be shared. My initial implementation could only reuse a {{DataSet}} result. Before committing to Flink this was updated to use a javassist {{ProxyFactory}} allowing configuration to be merged and results to be replaced. There were some issues, as identified in FLINK-4257. With a {{NoOpOperator}} we can remove the use of {{ProxyFactory}} and resolve the identified issues.
This ticket adds a {{NoOpOperator}} which is unwound in {{OperatorTranslation.translate}}. The {{NoOpOperator}} contains a {{DataSet}} which is accessed by a getter and setter.
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