[infinispan-issues] [JBoss JIRA] (ISPN-4139) Upgrade Lucene 4 Infinispan Directory to Lucene 4.7.0

[Sanne Grinovero (JIRA)]

    [ https://issues.jboss.org/browse/ISPN-4139?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12954735#comment-12954735 ] 

Sanne Grinovero commented on ISPN-4139:
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{quote}How is this even related?{quote}
Infinispan Query uses Hibernate Search, currently still using 4.5.0. So there are tests in this tree which use Hibernate Search 4.5 in combination with the Lucene Directory too, run with Lucene 3.6.2

We need to solve our integration issues in Hibernate Search to replace the one used by Infinispan Query so that I can drop the need to have the Lucene Directory to support both old and new Lucene versions. Current roadblock is the serialization, and as you know we might introduce more roadbocks while making more changes in Search 5.. which is why it's good to keep an eye on both projects as we need to converge quickly.

If you have a plan to fix this issue I'm happy to reassign to you as I've been busy with debugging other Search issues, but be aware of the intricate compatibility requirements. If you can avoid any SPI changes it would be best; otherwise I think we'd be better off postponing this upgrade after we dropped Lucene 3.6, and postponed the update in Search too.
                
> Upgrade Lucene 4 Infinispan Directory to Lucene 4.7.0
> -----------------------------------------------------
>
>                 Key: ISPN-4139
>                 URL: https://issues.jboss.org/browse/ISPN-4139
>             Project: Infinispan
>          Issue Type: Task
>          Components: Lucene Directory
>            Reporter: Hardy Ferentschik
>            Assignee: Sanne Grinovero
>
> * {{DirectoryLuceneV4}} should not probably extend {{BaseDirectory}} instead of plain {{Directory}}
> * {{Lock#release}} got removed into {{Lock#close}}. {{BaseLuceneLock}} needs to change, but I am not sure how this works in order to support Lucene 3 and 4!?

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