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https://issues.apache.org/jira/browse/LUCENE-5670?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13997633#comment-13997633
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Christian Ziech commented on LUCENE-5670:
-----------------------------------------
No actually only some of the subclasses of DataInput had a skipBytes()
implementation - e.g. the BytesReader() intermediate abstract class added it to
the interface and also the ByteArrayDataInput had it before. Maybe one should
scan over all the other implementations if they had a similar method that was
just named differently or could implement it (e.g. IndexInput could easily
implement the skip method as a comination of seek and getFilePointer).
> org.apache.lucene.util.fst.FST should skip over outputs it is not interested
> in
> -------------------------------------------------------------------------------
>
> Key: LUCENE-5670
> URL: https://issues.apache.org/jira/browse/LUCENE-5670
> Project: Lucene - Core
> Issue Type: Improvement
> Affects Versions: 4.7
> Reporter: Christian Ziech
> Assignee: Michael McCandless
> Priority: Minor
> Attachments: LUCENE-5670.patch
>
>
> Currently the FST uses the read(DataInput) method from the Outputs class to
> skip over outputs it actually is not interested in. For most use cases this
> just creates some additional objects that are immediately destroyed again.
> When traversing an FST with non-trivial data however this can easily add up
> to several excess objects that nobody actually ever read.
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