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https://issues.apache.org/jira/browse/LUCENE-8292?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16465875#comment-16465875
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David Smiley edited comment on LUCENE-8292 at 5/7/18 12:55 PM:
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Maybe it would be helpful if we simply add a _comment_ to FilterTermsEnum of
the methods it does not override but could still be by subclasses that wish to?
e.g.:
{code:java}
//inherited methods with default impls that could still be overridden:
// public AttributeSource attributes()
// public boolean seekExact(BytesRef text) throws IOException
// public void seekExact(BytesRef term, TermState state) throws IOException
// public TermState termState() throws IOException
{code}
The main down-side is that it could be easy to forget to maintain this comment
as changes happen over time. WDYT [~jpountz]?
was (Author: dsmiley):
Maybe it would be helpful if we simply add a _commented_ to FilterTermsEnum of
the methods it does not override but could still be by subclasses that wish to?
e.g.:
{code:java}
//inherited methods with default impls that could still be overridden:
// public AttributeSource attributes()
// public boolean seekExact(BytesRef text) throws IOException
// public void seekExact(BytesRef term, TermState state) throws IOException
// public TermState termState() throws IOException
{code}
The main down-side is that it could be easy to forget to maintain this comment
as changes happen over time. WDYT [~jpountz]?
> Fix FilterLeafReader.FilterTermsEnum to delegate all seekExact methods
> ----------------------------------------------------------------------
>
> Key: LUCENE-8292
> URL: https://issues.apache.org/jira/browse/LUCENE-8292
> Project: Lucene - Core
> Issue Type: Bug
> Components: core/index
> Affects Versions: 7.2.1
> Reporter: Bruno Roustant
> Priority: Major
> Fix For: trunk
>
> Attachments:
> 0001-Fix-FilterLeafReader.FilterTermsEnum-to-delegate-see.patch,
> LUCENE-8292.patch
>
>
> FilterLeafReader#FilterTermsEnum wraps another TermsEnum and delegates many
> methods.
> It misses some seekExact() methods, thus it is not possible to the delegate
> to override these methods to have specific behavior (unlike the TermsEnum API
> which allows that).
> The fix is straightforward: simply override these seekExact() methods and
> delegate.
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