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From "Holger S. (Commented) (JIRA)" <>
Subject [jira] [Commented] (CLI-120) equals and hashCode are incomplete
Date Fri, 25 Nov 2011 16:03:40 GMT


Holger S. commented on CLI-120:

I implemented equals and hashCode for ArgumentImpl and SourceDestImpl and created test cases.
Please review this patch.

a few issues arose:
 - Validators usually don't implement equals and hashCode either, so ArgumentImpl.equals does
not work correctly if only the validator is different 
 - PropertyOption does not have any attributes that are not used in OptionImpl.equals, so
all are compared but I think it would fail if two different subclasses of OptionImpl were
compared. I couldn't create a test case, but this could be a problem in the future.

> equals and hashCode are incomplete
> ----------------------------------
>                 Key: CLI-120
>                 URL:
>             Project: Commons CLI
>          Issue Type: Improvement
>          Components: CLI-2.x
>            Reporter: Andrew Shirley
>            Priority: Minor
>             Fix For: 2.0
>         Attachments: ArgumentEqualsPatch.diff
> there are many classes with equals and hashCode implemented however there are also classes
which don't. We need to be consistent and if we are using equals then we need to define it
for all classes in the affected hierarchy. For example OptionImpl has an equals but ParentImpl
which extends OptionImpl and has several new members doesn't.

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