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https://issues.apache.org/jira/browse/LUCENE-1989?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Uwe Schindler updated LUCENE-1989:
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Attachment: LUCENE-1989.patch
This is the only possibility to make it somehow genericfied. As all Object
subclasses (so everything) contains a toString() method it is no longer a
problem to add any object that has a valid String representation to this set.
It is only strange that the iterator returns Strings and not char[] - why is
this so. To fix this, there is also an accessor to get an Iterator<String>
correctly casted.
> CharArraySet cannot be made generic, because it violates the Set<char[]>
> interface
> ----------------------------------------------------------------------------------
>
> Key: LUCENE-1989
> URL: https://issues.apache.org/jira/browse/LUCENE-1989
> Project: Lucene - Java
> Issue Type: Bug
> Affects Versions: 2.9
> Reporter: Uwe Schindler
> Fix For: 3.0
>
> Attachments: LUCENE-1989.patch
>
>
> I tried to make CharArraySet using generics (extends AbstractSet<char[]>) but
> this is not possible, as it e.g. returns sometimes String instances in the
> Iterator instead of []. Also its addAll method accepts both String and
> char[]. I think this class is a complete mis-design and violates almost
> everything (sorry).
> What to do? Make it Set<?> or just place a big @SuppressWarnings("unchecked">
> in front of it?
> Because of this problem also a lot of Set declarations inside StopAnalyzer
> cannot be made generic as you never know whats inside.
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