Fabian Hueske created FLINK-2637:
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Summary: Add abstract equals, hashCode and toString methods to
TypeInformation
Key: FLINK-2637
URL: https://issues.apache.org/jira/browse/FLINK-2637
Project: Flink
Issue Type: Improvement
Components: Core
Affects Versions: 0.9, 0.10
Reporter: Fabian Hueske
Fix For: 0.10
Flink expects that implementations of {{TypeInformation}} have valid
implementations of {{hashCode}} and {{equals}}. However, the API does not
enforce to implement these methods. Hence, this is a common origin for bugs
such as for example FLINK-2633.
This can be avoided by adding abstract {{hashCode}} and {{equals}} methods to
TypeInformation. An abstract {{toString}} method could also be added.
This change will brake the API and require to fix a couple of broken
{{TypeInformation}} implementations.
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