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<p><strong>About</strong></p>
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<li> <a href="./luceneplan.html">Application Extensions</a>
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<font color="#ffffff" face="arial,helvetica,sanserif">
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<a name="Purpose"><strong>Purpose</strong></a>
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</font>
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</td></tr>
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<tr><td>
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<blockquote>
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<p>
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This document describes the list of tasks on
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the plates of the Lucene development team. Tasks are assigned into two
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categories: core or non-core.
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</p>
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</blockquote>
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</p>
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</td></tr>
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<tr><td><br/></td></tr>
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</table>
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<table border="0" cellspacing="0" cellpadding="2" width="100%">
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<tr><td bgcolor="#525D76">
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<font color="#ffffff" face="arial,helvetica,sanserif">
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<a name="About Core vs. Non-Core Development"><strong>About Core vs. Non-Core Development</strong></a>
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</font>
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</td></tr>
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<tr><td>
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<blockquote>
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<p>
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Currently the Lucene development team is working on
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categorizing change requests into <b>core</b> and <b>non-core</b>
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changes.
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</p>
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<p>
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Core changes would entail a change to the search engine
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core itself. From Doug Cutting:
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<blockquote><i>
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"Examples include: file locking to make things
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multi-process safe; adding an API for boosting individual documents and fields
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values; making the scoring API extensible and public; etc."
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</i></blockquote>
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</p>
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<p>
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Non-core changes would not affect the search engine
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itself, but would consist instead of projects or components that would
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make useful
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additions to the core framework. Again, from Doug
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Cutting:
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<blockquote><i>
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"[Examples] include: support for more languages; query
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parsers; database storage; crawlers, etc. Whether these belong in the
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base distribution is a matter of debate (sometimes hot). My rule of
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thumb for including them is their generality: if they are likely to be
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useful to a large proportion of Lucene users then they should probably go
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in the base distribution. Language support in particular is tricky.
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Perhaps we should migrate to a model where the base distribution
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includes no analyzers, and supply separate language packages."
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</i></blockquote>
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</p>
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<p>
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Change requests will be categorically defined by the
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development team (committers) as core or non-core, and a committer will
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be assigned responsibility for
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coordinating development of the change request. All
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change requests should be submitted to one of the Lucene mailing lists, or
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through
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the <a href="http://issues.apache.org/bugzilla/">Apache
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Bugzilla</a> database.
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</p>
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</blockquote>
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</p>
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</td></tr>
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<tr><td><br/></td></tr>
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</table>
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<table border="0" cellspacing="0" cellpadding="2" width="100%">
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<tr><td bgcolor="#525D76">
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<font color="#ffffff" face="arial,helvetica,sanserif">
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<a name="Core Development Changes"><strong>Core Development Changes</strong></a>
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</font>
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</td></tr>
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<tr><td>
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<blockquote>
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<p>
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<i>No change requests classified as core yet!</i>
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</p>
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</blockquote>
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</p>
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</td></tr>
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<tr><td><br/></td></tr>
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</table>
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<table border="0" cellspacing="0" cellpadding="2" width="100%">
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<tr><td bgcolor="#525D76">
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<font color="#ffffff" face="arial,helvetica,sanserif">
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<a name="Non-Core Development Changes"><strong>Non-Core Development Changes</strong></a>
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</font>
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</td></tr>
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<tr><td>
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<blockquote>
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<p>
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<i>No change requests classified as non-core yet!</i>
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</p>
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</blockquote>
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</p>
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</td></tr>
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<tr><td><br/></td></tr>
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</table>
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<table border="0" cellspacing="0" cellpadding="2" width="100%">
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<tr><td bgcolor="#525D76">
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<font color="#ffffff" face="arial,helvetica,sanserif">
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<a name="Unclassified Changes"><strong>Unclassified Changes</strong></a>
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</font>
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</td></tr>
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<tr><td>
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<blockquote>
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<p>
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<table cellpadding="5">
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<tr>
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<th valign="top">Name</th>
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<th valign="top">Description</th>
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<th valign="top">Links</th>
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</tr>
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<tr>
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<td valign="top">Term Vector support</td>
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<td valign="top" />
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<td valign="top">
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<ul>
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<li><a href="http://nagoya.apache.org/eyebrowse/ReadMsg?listName=lucene-dev@jakarta.apache.org&msgNo=273">http://nagoya.apache.org/eyebrowse/ReadMsg?listName=lucene-dev@jakarta.apache.org&msgNo=273</a></li>
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<li><a href="http://nagoya.apache.org/eyebrowse/ReadMsg?listName=lucene-dev@jakarta.apache.org&msgNo=272">http://nagoya.apache.org/eyebrowse/ReadMsg?listName=lucene-dev@jakarta.apache.org&msgNo=272</a></li>
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</ul>
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</td>
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</tr>
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<tr>
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<td valign="top">Support for Search Term Highlighting</td>
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<td valign="top" />
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<td valign="top">
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<ul>
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<li><a href="http://www.geocrawler.org/archives/3/2624/2001/9/50/6553088/">http://www.geocrawler.org/archives/3/2624/2001/9/50/6553088/</a></li>
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<li><a href="http://nagoya.apache.org/eyebrowse/ReadMsg?listName=lucene-dev@jakarta.apache.org&msgId=115271">http://nagoya.apache.org/eyebrowse/ReadMsg?listName=lucene-dev@jakarta.apache.org&msgId=115271</a></li>
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<li><a href="http://www.iq-computing.de/index.asp?menu=projekte-lucene-highlight">http://www.iq-computing.de/index.asp?menu=projekte-lucene-highlight</a></li>
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<li><a href="http://nagoya.apache.org/eyebrowse/BrowseList?listName=lucene-dev@jakarta.apache.org&by=thread&from=56403">http://nagoya.apache.org/eyebrowse/BrowseList?listName=lucene-dev@jakarta.apache.org&by=thread&from=56403</a></li>
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</ul>
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</td>
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</tr>
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<tr>
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<td valign="top">Better support for hits sorted by things other
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than score.</td>
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<td valign="top"> An easy, efficient case is to support results
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sorted by the order documents were
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added to the index. A little harder and less efficient is support
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for
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results sorted by an arbitrary field.
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</td>
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<td valign="top">
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<ul>
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<li><a href="http://nagoya.apache.org/eyebrowse/ReadMsg?listName=lucene-dev@jakarta.apache.org&msgId=114756">http://nagoya.apache.org/eyebrowse/ReadMsg?listName=lucene-dev@jakarta.apache.org&msgId=114756</a></li>
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<li><a href="http://www.mail-archive.com/lucene-user@jakarta.apache.org/msg00228.html">http://www.mail-archive.com/lucene-user@jakarta.apache.org/msg00228.html</a></li>
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</ul>
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</td>
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</tr>
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<tr>
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<td valign="top">Add some requested methods: Document.getValues,
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IndexReader.getIndexedFields</td>
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<td valign="top"> String[] Document.getValues(String
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fieldName);
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String[] IndexReader.getIndexedFields();
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void Token.setPositionIncrement(int);</td>
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<td valign="top">
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<ul>
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<li><a href="http://nagoya.apache.org/eyebrowse/ReadMsg?listName=lucene-dev@jakarta.apache.org&msgId=330010">http://nagoya.apache.org/eyebrowse/ReadMsg?listName=lucene-dev@jakarta.apache.org&msgId=330010</a></li>
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<li><a href="http://nagoya.apache.org/eyebrowse/ReadMsg?listName=lucene-dev@jakarta.apache.org&msgId=330009">http://nagoya.apache.org/eyebrowse/ReadMsg?listName=lucene-dev@jakarta.apache.org&msgId=330009</a></li>
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</ul>
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</td>
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</tr>
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<tr>
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<td valign="top">Add lastModified() method to Directory,
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FSDirectory and RamDirectory, so it could be cached in IndexWriter/Searcher
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manager.</td>
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<td valign="top" />
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<td valign="top" />
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</tr>
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<tr>
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<td valign="top">Support for adding more than 1 term to the same
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position.</td>
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<td valign="top">N.B. I think the Finnish lady already
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implemented this. It required some pieces of Lucene to be modified. (OG).</td>
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<td valign="top" />
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</tr>
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<tr>
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<td valign="top">The ability to retrieve the number of occurrences
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not only for a term but also for a Phrase.</td>
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<td valign="top" />
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<td valign="top">
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<ul>
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<li><a href="http://www.mail-archive.com/lucene-dev@jakarta.apache.org/msg00101.html">http://www.mail-archive.com/lucene-dev@jakarta.apache.org/msg00101.html</a></li>
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</ul></td>
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</tr>
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<tr>
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<td valign="top">Che Dong's CJKTokenizer for Chinese, Japanese,
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and Korean.</td>
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<td valign="top" />
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<td valign="top">
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<ul>
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<li><a href="http://nagoya.apache.org/eyebrowse/ReadMsg?listName=lucene-dev@jakarta.apache.org&msgId=330905">http://nagoya.apache.org/eyebrowse/ReadMsg?listName=lucene-dev@jakarta.apache.org&msgId=330905</a></li>
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</ul>
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</td>
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</tr>
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<tr>
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<td valign="top">Selecting a language-specific analyzer according
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to a locale.</td>
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<td valign="top"> Now we rewrite parts of Lucene code in order
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to use another analyzer. It will be useful to select analyzer without
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touching code.</td>
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<td valign="top" />
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</tr>
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<tr>
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<td valign="top">Adding "-encoding" option and encoding-sensitive
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methods to tools.</td>
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<td valign="top"> Current tools needs minor changes on a
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Japanese (and other language) environment: adding an "-encode" option and
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argument, using Reader/Writer classes instead of InputStream/OutputStream
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classes, etc.</td>
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<td valign="top" />
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</tr>
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</table>
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</p>
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</blockquote>
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</p>
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</td></tr>
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<tr><td><br/></td></tr>
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</table>
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</td>
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</tr>
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<!-- FOOTER -->
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<div align="center"><font color="#525D76" size="-1"><em>
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Copyright © 1999-2002, Apache Software Foundation
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</em></font></div>
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</table>
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</body>
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</html>
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<!-- end the processing -->
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