Lucene contrib change Log

Release 3.0.1 [2010-02-26]

• New features   (1)
  1. LUCENE-2108: Spellchecker now safely supports concurrent modifications to the spell-index. Threads can safely obtain term suggestions while the spell- index is rebuild, cleared or reset. Internal IndexSearcher instances remain open until the last thread accessing them releases the reference.
     (Simon Willnauer)
• Bug Fixes   (5)
  1. LUCENE-2144: Fix InstantiatedIndex to handle termDocs(null) correctly (enumerate all non-deleted docs).
     (Karl Wettin via Mike McCandless)
  2. LUCENE-2199: ShingleFilter skipped over tri-gram shingles if outputUnigram was set to false.
     (Simon Willnauer)
  3. LUCENE-2211: Fix missing clearAttributes() calls: ShingleMatrix, PrefixAware, compounds, NGramTokenFilter, EdgeNGramTokenFilter, Highlighter, and MemoryIndex.
     (Uwe Schindler, Robert Muir)
  4. LUCENE-2207, LUCENE-2219: Fix incorrect offset calculations in end() for CJKTokenizer, ChineseTokenizer, SmartChinese SentenceTokenizer, and WikipediaTokenizer.
     (Koji Sekiguchi, Robert Muir)
  5. LUCENE-2266: Fixed offset calculations in NGramTokenFilter and EdgeNGramTokenFilter.
     (Joe Calderon, Robert Muir via Uwe Schindler)
• API Changes   (2)
  1. LUCENE-2108: Add SpellChecker.close, to close the underlying reader.
     (Eirik Bjørsnøs via Mike McCandless)
  2. LUCENE-2165: Add a constructor to SnowballAnalyzer that takes a Set of stopwords, and deprecate the String[] one.
     (Nick Burch via Robert Muir)

Release 3.0.0 [2009-11-25]

• Changes in backwards compatibility policy   (1)
  1. LUCENE-1257: Change some occurences of StringBuffer in public/protected APIs of contrib/surround to StringBuilder.
     (Paul Elschot via Uwe Schindler)
• Changes in runtime behavior   (1)
  1. LUCENE-1966: Modified and cleaned the default Arabic stopwords list used by ArabicAnalyzer. You'll need to fully re-index any previously created indexes.
     (Basem Narmok via Robert Muir)
• API Changes   (2)
  1. LUCENE-1936: Deprecated RussianLowerCaseFilter, because it transforms text exactly the same as LowerCaseFilter. Please use LowerCaseFilter instead, which has the same functionality.
     (Robert Muir)
  2. LUCENE-2051: Contrib Analyzer setters were deprecated and replaced with ctor arguments / Version number. Also stop word lists were unified.
     (Simon Willnauer)
• Bug fixes   (3)
  1. LUCENE-1781: Fixed various issues with the lat/lng bounding box distance filter created for radius search in contrib/spatial.
     (Bill Bell via Mike McCandless)
  2. LUCENE-1939: IndexOutOfBoundsException at ShingleMatrixFilter's Iterator#hasNext method on exhausted streams.
     (Patrick Jungermann via Karl Wettin)
  3. LUCENE-1359: French analyzer did not support null field names.
     (Andrew Lynch via Robert Muir)
• New features   (3)
  1. LUCENE-1924: Added BalancedSegmentMergePolicy to contrib/misc, which is a merge policy that tries to avoid doing very large segment merges to give better search performance in a mixed indexing/searching environment.
     (John Wang via Mike McCandless)
  2. LUCENE-1959: Add index splitting tools. The IndexSplitter tool works on multi-segment (non optimized) indexes and it can copy specific segments out of the index into a new index. It can also list the segments in the index, and delete specified segments. (Jason Rutherglen via Mike McCandless). MultiPassIndexSplitter can split any index into any number of output parts, at the cost of doing multiple passes over the input index.
     (Andrzej Bialecki)
  3. LUCENE-1993: Add maxDocFreq setting to MoreLikeThis, to exclude from consideration terms that match more than the specified number of documents.
     (Christian Steinert via Mike McCandless)
• Optimizations   (1)
  1. LUCENE-1965, LUCENE-1962: Arabic-, Persian- and SmartChineseAnalyzer loads default stopwords only once if accessed for the first time. Previous versions were loading the stopword files each time a new instance was created. This might improve performance for applications creating lots of instances of these Analyzers.
     (Simon Willnauer)
• Documentation   (1)
  1. LUCENE-1916: Translated documentation in the smartcn hhmm package.
     (Patricia Peng via Robert Muir)
• Build   (2)
  1. LUCENE-1904: Moved wordnet-based synonym support from contrib/memory into contrib/wordnet.
     (Robert Muir)
  2. LUCENE-2031: Moved PatternAnalyzer from contrib/memory into contrib/analyzers/common, under miscellaneous.
     (Robert Muir)

Older Releases

Release 2.9.1 [2009-11-06]

• Changes in backwards compatibility policy   (1)
  1. LUCENE-2002: Add required Version matchVersion argument when constructing ComplexPhraseQueryParser and default (as of 2.9) enablePositionIncrements to true to match StandardAnalyzer's default. Also added required matchVersion to most of the analyzers
     (Uwe Schindler, Mike McCandless)
• Changes in runtime behavior   (1)
  1. LUCENE-1963: ArabicAnalyzer now lowercases before checking the stopword list. This has no effect on Arabic text, but if you are using a custom stopword list that contains some non-Arabic words, you'll need to fully reindex.
     (DM Smith via Robert Muir)
• Bug fixes   (7)
  1. LUCENE-1953: FastVectorHighlighter: small fragCharSize can cause StringIndexOutOfBoundsException.
     (Koji Sekiguchi)
  2. LUCENE-1929: Highlighter throws exception on NumericRangeQuery and does not support deprecated RangeQuery.
     (Mark Miller)
  3. LUCENE-2001: Wordnet Syns2Index incorrectly parses synonyms that contain a single quote.
     (Parag H. Dave via Robert Muir)
  4. LUCENE-2003: Highlighter doesn't respect position increments other than 1 with PhraseQuerys.
     (Uwe Schindler, Mark Miller)
  5. LUCENE-1954: InstantiatedIndexWriter: Fixed ClassCastException with NumericField because of incorrect unchecked cast: Document.getFields() returns List<Fieldable>.
     (Bernd Fondermann via Uwe Schindler)
  6. LUCENE-2014: SmartChineseAnalyzer did not properly clear attributes in WordTokenFilter. If enablePositionIncrements is set for StopFilter, then this could create invalid position increments, causing IndexWriter to crash.
     (Robert Muir, Uwe Schindler)
  7. LUCENE-2013: SpanRegexQuery does not work with QueryScorer.
     (Benjamin Keil via Mark Miller)

Release 2.9.0 [2009-09-23]

• Changes in runtime behavior   (2)
  1. LUCENE-1505: Local lucene now uses org.apache.lucene.util.NumericUtils for all number conversion. You'll need to fully re-index any previously created indexes. This isn't a break in back-compatibility because local Lucene has not yet been released.
     (Mike McCandless)
  2. LUCENE-1758: ArabicAnalyzer now uses the light10 algorithm, has a refined default stopword list, and lowercases non-Arabic text. You'll need to fully re-index any previously created indexes. This isn't a break in back-compatibility because ArabicAnalyzer has not yet been released.
     (Robert Muir)
• API Changes   (5)
  1. LUCENE-1695: Update the Highlighter to use the new TokenStream API. This issue breaks backwards compatibility with some public classes. If you have implemented custom Fragmenters or Scorers, you will need to adjust them to work with the new TokenStream API. Rather than getting passed a Token at a time, you will be given a TokenStream to init your impl with - store the Attributes you are interested in locally and access them on each call to the method that used to pass a new Token. Look at the included updated impls for examples.
     (Mark Miller)
  2. LUCENE-1460: Change contrib TokenStreams/Filters to use the new TokenStream API.
     (Robert Muir, Michael Busch)
  3. LUCENE-1775, LUCENE-1903: Change remaining TokenFilters (shingle, prefix-suffix) to use the new TokenStream API. ShingleFilter is much more efficient now, it clones much less often and computes the tokens mostly on the fly now. Also added more tests.
     (Robert Muir, Michael Busch, Uwe Schindler, Chris Harris)
  4. LUCENE-1685: The position aware SpanScorer has become the default scorer for Highlighting. The SpanScorer implementation has replaced QueryScorer and the old term highlighting QueryScorer has been renamed to QueryTermScorer. Multi-term queries are also now expanded by default. If you were previously rewriting the query for multi-term query highlighting, you should no longer do that (unless you switch to using QueryTermScorer). The SpanScorer API (now QueryScorer) has also been improved to more closely match the API of the previous QueryScorer implementation.
     (Mark Miller)
  5. LUCENE-1793: Deprecate the custom encoding support in the Greek and Russian Analyzers. If you need to index text in these encodings, please use Java's character set conversion facilities (InputStreamReader, etc) during I/O, so that Lucene can analyze this text as Unicode instead.
     (Robert Muir)
• Bug fixes   (12)
  1. LUCENE-1423: InstantiatedTermEnum#skipTo(Term) throws ArrayIndexOutOfBounds on empty index.
     (Karl Wettin)
  2. LUCENE-1462: InstantiatedIndexWriter did not reset pre analyzed TokenStreams the same way IndexWriter does. Parts of InstantiatedIndex was not Serializable.
     (Karl Wettin)
  3. LUCENE-1510: InstantiatedIndexReader#norms methods throws NullPointerException on empty index.
     (Karl Wettin, Robert Newson)
  4. LUCENE-1514: ShingleMatrixFilter#next(Token) easily throws a StackOverflowException due to recursive invocation.
     (Karl Wettin)
  5. LUCENE-1548: Fix distance normalization in LevenshteinDistance to not produce negative distances
     (Thomas Morton via Mike McCandless)
  6. LUCENE-1490: Fix latin1 conversion of HALFWIDTH_AND_FULLWIDTH_FORMS characters to only apply to the correct subset
     (Daniel Cheng via Mike McCandless)
  7. LUCENE-1576: Fix BrazilianAnalyzer to downcase tokens after StandardTokenizer so that stop words with mixed case are filtered out.
     (Rafael Cunha de Almeida, Douglas Campos via Mike McCandless)
  8. LUCENE-1491: EdgeNGramTokenFilter no longer stops on tokens shorter than minimum n-gram size.
     (Todd Teak via Otis Gospodnetic)
  9. LUCENE-1683: Fixed JavaUtilRegexCapabilities (an impl used by RegexQuery) to use Matcher.matches() not Matcher.lookingAt() so that the regexp must match the entire string, not just a prefix.
     (Trejkaz via Mike McCandless)
  10. LUCENE-1792: Fix new query parser to set rewrite method for multi-term queries.
      (Luis Alves, Mike McCandless via Michael Busch)
  11. LUCENE-1828: Fix memory index to call TokenStream.reset() and TokenStream.end().
      (Tim Smith via Michael Busch)
  12. LUCENE-1912: Fix fast-vector-highlighter issue when two or more terms are concatenated
      (Koji Sekiguchi via Mike McCandless)
• New features   (17)
  1. LUCENE-1531: Added support for BoostingTermQuery to XML query parser.
     (Karl Wettin)
  2. LUCENE-1435: Added contrib/collation, a CollationKeyFilter allowing you to convert tokens into CollationKeys encoded using IndexableBinaryStringTools. This allows for faster RangeQuery when a field needs to use a custom Collator.
     (Steven Rowe via Mike McCandless)
  3. LUCENE-1591: EnWikiDocMaker, LineDocMaker, WriteLineDoc can now read/write bz2 using Apache commons compress library. This means you can download the .bz2 export from http://wikipedia.org and immediately index it.
     (Shai Erera via Mike McCandless)
  4. LUCENE-1629: Add SmartChineseAnalyzer to contrib/analyzers. It improves on CJKAnalyzer and ChineseAnalyzer by handling Chinese sentences properly. SmartChineseAnalyzer uses a Hidden Markov Model to tokenize Chinese words in a more intelligent way.
     (Xiaoping Gao via Mike McCandless)
  5. LUCENE-1676: Added DelimitedPayloadTokenFilter class for automatically adding payloads "in-stream"
     (Grant Ingersoll)
  6. LUCENE-1578: Support for loading unoptimized readers to the constructor of InstantiatedIndex.
     (Karl Wettin)
  7. LUCENE-1704: Allow specifying the Tidy configuration file when parsing HTML docs with contrib/ant.
     (Keith Sprochi via Mike McCandless)
  8. LUCENE-1522: Added contrib/fast-vector-highlighter, a new alternative highlighter.
     (Koji Sekiguchi via Mike McCandless)
  9. LUCENE-1740: Added "analyzer" command to Lucli, enabling changing the analyzer from the default StandardAnalyzer.
     (Bernd Fondermann via Mike McCandless)
  10. LUCENE-1272: Add get/setBoost to MoreLikeThis.
      (Jonathan Leibiusky via Mike McCandless)
  11. LUCENE-1745: Added constructors to JakartaRegexpCapabilities and JavaUtilRegexCapabilities as well as static flags to support configuring a RegexCapabilities implementation with the implementation-specific modifier flags. Allows for callers to customize the RegexQuery using the implementation-specific options and fine tune how regular expressions are compiled and matched.
      (Marc Zampetti zampettim@aim.com via Mike McCandless)
  12. LUCENE-1567: Added a new QueryParser framework, that allows implementing a new query syntax in a flexible and efficient way. This new QueryParser will be moved to Lucene's core in release 3.0 and will then replace the current core QueryParser, which has been deprecated with this patch.
      (Luis Alves and Adriano Campos via Michael Busch)
  13. LUCENE-1486: Added ComplexPhraseQueryParser, an extension of QueryParser that allows a subset of the Lucene query language to be embedded in PhraseQuerys. Wildcard, Range, and Fuzzy queries, as well as limited boolean logic, can be used within quote operators with this parser, ie: "(jo* -john) smyth~".
      (Mark Harwood via Mark Miller)
  14. Added web-based demo of functionality in contrib's XML Query Parser packaged as War file
      (Mark Harwood)
  15. LUCENE-1406: Added Arabic analyzer.
      (Robert Muir via Grant Ingersoll)
  16. LUCENE-1628: Added Persian analyzer.
      (Robert Muir)
  17. LUCENE-1813: Add option to ReverseStringFilter to mark reversed tokens.
      (Andrzej Bialecki via Robert Muir)
• Optimizations   (2)
  1. LUCENE-1643: Re-use the collation key (RawCollationKey) for better performance, in ICUCollationKeyFilter.
     (Robert Muir via Mike McCandless)
  2. LUCENE-1794: Implement TokenStream reuse for contrib Analyzers, and implement reset() for TokenStreams to support reuse.
     (Robert Muir)
• Documentation   (1)
  1. LUCENE-1876: added missing package level documentation for numerous contrib packages.
     (Steven Rowe & Robert Muir)
• Build   (2)
  1. LUCENE-1728: Split contrib/analyzers into common and smartcn modules. Contrib/analyzers now builds an additional lucene-smartcn Jar file. All smartcn classes are not included in the lucene-analyzers JAR file.
     (Robert Muir via Simon Willnauer)
  2. LUCENE-1829: Fix contrib query parser to properly create javacc files.
     (Jan-Pascal and Luis Alves via Michael Busch)
• Test Cases   (none)

Release 2.4.0 [2008-10-06]

• Changes in runtime behavior   (1)
  1. 
     (None)
• API Changes   (2)
  1. 1.
  2. 
     (None)
• Bug fixes   (2)
  1. LUCENE-1312: Added full support for InstantiatedIndexReader#getFieldNames() and tests that assert that deleted documents behaves as they should (they did).
     (Jason Rutherglen, Karl Wettin)
  2. LUCENE-1318: InstantiatedIndexReader.norms(String, b[], int) didn't treat the array offset right.
     (Jason Rutherglen via Karl Wettin)
• New features   (3)
  1. LUCENE-1320: ShingleMatrixFilter, multidimensional shingle token filter.
     (Karl Wettin)
  2. LUCENE-1142: Updated Snowball package, org.tartarus distribution revision 500. Introducing Hungarian, Turkish and Romanian support, updated older stemmers and optimized (reflectionless) SnowballFilter. IMPORTANT NOTICE ON BACKWARDS COMPATIBILITY: an index created using the 2.3.2 (or older) might not be compatible with these updated classes as some algorithms have changed.
     (Karl Wettin)
  3. LUCENE-1016: TermVectorAccessor, transparent vector space access via stored vectors or by resolving the inverted index.
     (Karl Wettin)
• Documentation   (1)
  1. 
     (None)
• Build   (1)
  1. 
     (None)
• Test Cases   (1)
  1. 
     (None)