[jira] Created: (LUCENE-1030) "Read-only" IndexReaders

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[jira] Created: (LUCENE-1030) "Read-only" IndexReaders

Sebastian Nagel (Jira)
"Read-only" IndexReaders
------------------------

                 Key: LUCENE-1030
                 URL: https://issues.apache.org/jira/browse/LUCENE-1030
             Project: Lucene - Java
          Issue Type: Improvement
          Components: Index
            Reporter: Michael Busch
            Priority: Minor


IndexReaders are able to perform certain write operations on an index (setNorm(), deleteDocument()). This makes issues like LUCENE-743 more complicated and also duplicate code for acquiring locks and write transactions is necessary.

Therefore we should make IndexReaders "read-only" in the future. However, we have to find a good solution to support setting norms and deleting documents by docid with the IndexWriter. See related discussions in LUCENE-743 and http://www.gossamer-threads.com/lists/lucene/java-dev/52017.

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[jira] Resolved: (LUCENE-1030) "Read-only" IndexReaders

Sebastian Nagel (Jira)

     [ https://issues.apache.org/jira/browse/LUCENE-1030?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Michael McCandless resolved LUCENE-1030.
----------------------------------------

    Resolution: Duplicate

Read-only IndexReaders were added in 2.4 (LUCENE-1329).

> "Read-only" IndexReaders
> ------------------------
>
>                 Key: LUCENE-1030
>                 URL: https://issues.apache.org/jira/browse/LUCENE-1030
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: Index
>            Reporter: Michael Busch
>            Priority: Minor
>
> IndexReaders are able to perform certain write operations on an index (setNorm(), deleteDocument()). This makes issues like LUCENE-743 more complicated and also duplicate code for acquiring locks and write transactions is necessary.
> Therefore we should make IndexReaders "read-only" in the future. However, we have to find a good solution to support setting norms and deleting documents by docid with the IndexWriter. See related discussions in LUCENE-743 and http://www.gossamer-threads.com/lists/lucene/java-dev/52017.

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