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Posted to issues@arrow.apache.org by "Liya Fan (JIRA)" <ji...@apache.org> on 2019/08/16 06:37:00 UTC

[jira] [Created] (ARROW-6266) [Java] Resolve the ambiguous method overload in RangeEqualsVisitor

Liya Fan created ARROW-6266:
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             Summary: [Java] Resolve the ambiguous method overload in RangeEqualsVisitor
                 Key: ARROW-6266
                 URL: https://issues.apache.org/jira/browse/ARROW-6266
             Project: Apache Arrow
          Issue Type: Bug
          Components: Java
            Reporter: Liya Fan
            Assignee: Liya Fan


In RangeEqualsVisitor, there are overload methods for both super class and sub class. This will lead to unexpected behavior.

For example, if we call RangeEqualsVisitor#visit(v), where v is a fixed width vector, the method actually called may be visit(ValueVector), which is unexpected.

In general, in the visitor pattern, it is not a good idea to support method overload for both super class and sub-class as parameters.



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