lucene源码分析(5)Query分析

查询的入口

  /** Lower-level search API.
   *
   * <p>{@link LeafCollector#collect(int)} is called for every matching document.
   *
   * @throws BooleanQuery.TooManyClauses If a query would exceed 
   *         {@link BooleanQuery#getMaxClauseCount()} clauses.
   */
  public void search(Query query, Collector results)
    throws IOException {
    query = rewrite(query);
    search(leafContexts, createWeight(query, results.needsScores(), 1), results);
  }

可以看到，查询时需要传入Query接口的实现，其实现主要有：

/** The abstract base class for queries.
    <p>Instantiable subclasses are:
    <ul>
    <li> {@link TermQuery}
    <li> {@link BooleanQuery}
    <li> {@link WildcardQuery}
    <li> {@link PhraseQuery}
    <li> {@link PrefixQuery}
    <li> {@link MultiPhraseQuery}
    <li> {@link FuzzyQuery}
    <li> {@link RegexpQuery}
    <li> {@link TermRangeQuery}
    <li> {@link PointRangeQuery}
    <li> {@link ConstantScoreQuery}
    <li> {@link DisjunctionMaxQuery}
    <li> {@link MatchAllDocsQuery}
    </ul>
    <p>See also the family of {@link org.apache.lucene.search.spans Span Queries}
       and additional queries available in the <a href="{@docRoot}/../queries/overview-summary.html">Queries module</a>
*/

还有spanQuery跨度查询

太多了，需要一个个看