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Posted to dev@lucene.apache.org by "Shai Erera (Created) (JIRA)" <ji...@apache.org> on 2011/11/02 08:17:32 UTC

[jira] [Created] (LUCENE-3552) TaxonomyReader/Writer and their Lucene* implementation

TaxonomyReader/Writer and their Lucene* implementation
------------------------------------------------------

                 Key: LUCENE-3552
                 URL: https://issues.apache.org/jira/browse/LUCENE-3552
             Project: Lucene - Java
          Issue Type: Improvement
          Components: modules/facet
            Reporter: Shai Erera
            Assignee: Shai Erera
            Priority: Trivial
             Fix For: 3.5, 4.0


The facet module contains two interfaces TaxonomyWriter and TaxonomyReader, with two implementations Lucene*. We've never actually implemented two TaxonomyWriters/Readers, so I'm not sure if these interfaces are useful anymore. Therefore I'd like to propose that we do either of the following:

# Remove the interfaces and remove the Lucene part from the implementation classes (to end up with TW/TR impls). Or,
# Keep the interfaces, but rename the Lucene* impls to Directory*.

Whatever we do, I'd like to make the impls/interfaces impl also TwoPhaseCommit.

Any preferences?

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[jira] [Resolved] (LUCENE-3552) TaxonomyReader/Writer and their Lucene* implementation

Posted by "Shai Erera (Resolved) (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/LUCENE-3552?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Shai Erera resolved LUCENE-3552.
--------------------------------

    Resolution: Fixed

Thanks Doron, good catch !

I also renamed o.a.l.facet.taxonomy.lucene to *.directory.

Committed revision 1196963 (trunk).
Committed revision 1196965 (3x).
                
> TaxonomyReader/Writer and their Lucene* implementation
> ------------------------------------------------------
>
>                 Key: LUCENE-3552
>                 URL: https://issues.apache.org/jira/browse/LUCENE-3552
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: modules/facet
>            Reporter: Shai Erera
>            Assignee: Shai Erera
>            Priority: Trivial
>             Fix For: 3.5, 4.0
>
>         Attachments: LUCENE-3552.patch
>
>
> The facet module contains two interfaces TaxonomyWriter and TaxonomyReader, with two implementations Lucene*. We've never actually implemented two TaxonomyWriters/Readers, so I'm not sure if these interfaces are useful anymore. Therefore I'd like to propose that we do either of the following:
> # Remove the interfaces and remove the Lucene part from the implementation classes (to end up with TW/TR impls). Or,
> # Keep the interfaces, but rename the Lucene* impls to Directory*.
> Whatever we do, I'd like to make the impls/interfaces impl also TwoPhaseCommit.
> Any preferences?

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[jira] [Commented] (LUCENE-3552) TaxonomyReader/Writer and their Lucene* implementation

Posted by "Shai Erera (Commented) (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/LUCENE-3552?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13142031#comment-13142031 ] 

Shai Erera commented on LUCENE-3552:
------------------------------------

What do you mean? If we'll combine the search and taxonomy index, I don't believe we'll call it TaxonomyWriter. The purpose of the interface is for allowing a different implementation of the taxonomy, i.e. something that is not based on a Lucene Directory (e.g. a DB or something).

Perhaps I misunderstand you?
                
> TaxonomyReader/Writer and their Lucene* implementation
> ------------------------------------------------------
>
>                 Key: LUCENE-3552
>                 URL: https://issues.apache.org/jira/browse/LUCENE-3552
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: modules/facet
>            Reporter: Shai Erera
>            Assignee: Shai Erera
>            Priority: Trivial
>             Fix For: 3.5, 4.0
>
>
> The facet module contains two interfaces TaxonomyWriter and TaxonomyReader, with two implementations Lucene*. We've never actually implemented two TaxonomyWriters/Readers, so I'm not sure if these interfaces are useful anymore. Therefore I'd like to propose that we do either of the following:
> # Remove the interfaces and remove the Lucene part from the implementation classes (to end up with TW/TR impls). Or,
> # Keep the interfaces, but rename the Lucene* impls to Directory*.
> Whatever we do, I'd like to make the impls/interfaces impl also TwoPhaseCommit.
> Any preferences?

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[jira] [Updated] (LUCENE-3552) TaxonomyReader/Writer and their Lucene* implementation

Posted by "Shai Erera (Updated) (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/LUCENE-3552?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Shai Erera updated LUCENE-3552:
-------------------------------

    Attachment: LUCENE-3552.patch

Patch renames LTW/R to DirectoryTW/TR. Also, I renamed LTW's openLuceneIndex/closeLuceneIndex to open/closeIndexWriter.

I've also made TW extend TwoPhaseCommit.

I think that it's ready to commit. I'll port the changes to trunk afterwards. I'll wait until tomorrow before I commit (the changes are trivial).
                
> TaxonomyReader/Writer and their Lucene* implementation
> ------------------------------------------------------
>
>                 Key: LUCENE-3552
>                 URL: https://issues.apache.org/jira/browse/LUCENE-3552
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: modules/facet
>            Reporter: Shai Erera
>            Assignee: Shai Erera
>            Priority: Trivial
>             Fix For: 3.5, 4.0
>
>         Attachments: LUCENE-3552.patch
>
>
> The facet module contains two interfaces TaxonomyWriter and TaxonomyReader, with two implementations Lucene*. We've never actually implemented two TaxonomyWriters/Readers, so I'm not sure if these interfaces are useful anymore. Therefore I'd like to propose that we do either of the following:
> # Remove the interfaces and remove the Lucene part from the implementation classes (to end up with TW/TR impls). Or,
> # Keep the interfaces, but rename the Lucene* impls to Directory*.
> Whatever we do, I'd like to make the impls/interfaces impl also TwoPhaseCommit.
> Any preferences?

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[jira] [Commented] (LUCENE-3552) TaxonomyReader/Writer and their Lucene* implementation

Posted by "Dafna Sheinwald (Commented) (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/LUCENE-3552?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13142082#comment-13142082 ] 

Dafna Sheinwald commented on LUCENE-3552:
-----------------------------------------

Hi Shai,
Yes, the old (already forgotten) DB implementation of taxonomy index, and the subsequent Lucene implementation gave rise to the definition of TaxonomyReader/Writer interface. Currently, indeed, and we are left with Lucene (Directory) implementation only. But I thought that as the interface is already there, and we have some thoughts of yet another implementation of taxonomy index (and hence TaxonomyReader/Writer), as part of the Lucene search index, which may help to ease the burden of synch between these two indices, why not let the interface live a bit longer before we remove it.   Regards, Dafna.
                
> TaxonomyReader/Writer and their Lucene* implementation
> ------------------------------------------------------
>
>                 Key: LUCENE-3552
>                 URL: https://issues.apache.org/jira/browse/LUCENE-3552
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: modules/facet
>            Reporter: Shai Erera
>            Assignee: Shai Erera
>            Priority: Trivial
>             Fix For: 3.5, 4.0
>
>
> The facet module contains two interfaces TaxonomyWriter and TaxonomyReader, with two implementations Lucene*. We've never actually implemented two TaxonomyWriters/Readers, so I'm not sure if these interfaces are useful anymore. Therefore I'd like to propose that we do either of the following:
> # Remove the interfaces and remove the Lucene part from the implementation classes (to end up with TW/TR impls). Or,
> # Keep the interfaces, but rename the Lucene* impls to Directory*.
> Whatever we do, I'd like to make the impls/interfaces impl also TwoPhaseCommit.
> Any preferences?

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[jira] [Commented] (LUCENE-3552) TaxonomyReader/Writer and their Lucene* implementation

Posted by "Dafna Sheinwald (Commented) (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/LUCENE-3552?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13142024#comment-13142024 ] 

Dafna Sheinwald commented on LUCENE-3552:
-----------------------------------------

Hi Shai,
I would vote for (2). We may want to still maintain the option to implement both in one Lucene index, in order to avoid the burden of synch-ing them. 
Regards, Dafna.
                
> TaxonomyReader/Writer and their Lucene* implementation
> ------------------------------------------------------
>
>                 Key: LUCENE-3552
>                 URL: https://issues.apache.org/jira/browse/LUCENE-3552
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: modules/facet
>            Reporter: Shai Erera
>            Assignee: Shai Erera
>            Priority: Trivial
>             Fix For: 3.5, 4.0
>
>
> The facet module contains two interfaces TaxonomyWriter and TaxonomyReader, with two implementations Lucene*. We've never actually implemented two TaxonomyWriters/Readers, so I'm not sure if these interfaces are useful anymore. Therefore I'd like to propose that we do either of the following:
> # Remove the interfaces and remove the Lucene part from the implementation classes (to end up with TW/TR impls). Or,
> # Keep the interfaces, but rename the Lucene* impls to Directory*.
> Whatever we do, I'd like to make the impls/interfaces impl also TwoPhaseCommit.
> Any preferences?

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[jira] [Commented] (LUCENE-3552) TaxonomyReader/Writer and their Lucene* implementation

Posted by "Doron Cohen (Commented) (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/LUCENE-3552?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13142192#comment-13142192 ] 

Doron Cohen commented on LUCENE-3552:
-------------------------------------

Shai Patch looks good!

Applies cleanly (after svn mv'ing the two renamed classes) and all facet tests run.

Only userguide.html still mentions the old classes:

{code}
TaxonomyWriter taxo = new LuceneTaxonomyWriter(taxoDir, OpenMode.CREATE);
..
TaxonomyReader taxo = new LuceneTaxonomyReader(taxoDir);
{code}

Other than that good to go.
                
> TaxonomyReader/Writer and their Lucene* implementation
> ------------------------------------------------------
>
>                 Key: LUCENE-3552
>                 URL: https://issues.apache.org/jira/browse/LUCENE-3552
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: modules/facet
>            Reporter: Shai Erera
>            Assignee: Shai Erera
>            Priority: Trivial
>             Fix For: 3.5, 4.0
>
>         Attachments: LUCENE-3552.patch
>
>
> The facet module contains two interfaces TaxonomyWriter and TaxonomyReader, with two implementations Lucene*. We've never actually implemented two TaxonomyWriters/Readers, so I'm not sure if these interfaces are useful anymore. Therefore I'd like to propose that we do either of the following:
> # Remove the interfaces and remove the Lucene part from the implementation classes (to end up with TW/TR impls). Or,
> # Keep the interfaces, but rename the Lucene* impls to Directory*.
> Whatever we do, I'd like to make the impls/interfaces impl also TwoPhaseCommit.
> Any preferences?

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[jira] [Commented] (LUCENE-3552) TaxonomyReader/Writer and their Lucene* implementation

Posted by "Shai Erera (Commented) (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/LUCENE-3552?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13142108#comment-13142108 ] 

Shai Erera commented on LUCENE-3552:
------------------------------------

Ok, let's keep the interface. It's harmful and I can certainly think of alternate taxonomy implementations. Perhaps one day someone would want to implement the taxonomy over a serialized FST or some other data structure ...

So in this case, I'll:
* Keep the interfaces
* Make TaxomomyWriter extend TwoPhaseCommit
* Rename Lucene TaxoWriter/Reader to DirectoryTaxoWriterReader.

Any suggestions about an alternative names to the implementations?
                
> TaxonomyReader/Writer and their Lucene* implementation
> ------------------------------------------------------
>
>                 Key: LUCENE-3552
>                 URL: https://issues.apache.org/jira/browse/LUCENE-3552
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: modules/facet
>            Reporter: Shai Erera
>            Assignee: Shai Erera
>            Priority: Trivial
>             Fix For: 3.5, 4.0
>
>
> The facet module contains two interfaces TaxonomyWriter and TaxonomyReader, with two implementations Lucene*. We've never actually implemented two TaxonomyWriters/Readers, so I'm not sure if these interfaces are useful anymore. Therefore I'd like to propose that we do either of the following:
> # Remove the interfaces and remove the Lucene part from the implementation classes (to end up with TW/TR impls). Or,
> # Keep the interfaces, but rename the Lucene* impls to Directory*.
> Whatever we do, I'd like to make the impls/interfaces impl also TwoPhaseCommit.
> Any preferences?

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