Examples of IndexSearcher

com.dotcms.repackage.org.apache.lucene.search.IndexSearcher
org.apache.lucene.search.IndexSearcher
Implements search over a single IndexReader.
Applications usually need only call the inherited {@link #search(Query,int)}or {@link #search(Query,Filter,int)} methods. Forperformance reasons, if your index is unchanging, you should share a single IndexSearcher instance across multiple searches instead of creating a new one per-search. If your index has changed and you wish to see the changes reflected in searching, you should use {@link IndexReader#openIfChanged} to obtain a new reader andthen create a new IndexSearcher from that. Also, for low-latency turnaround it's best to use a near-real-time reader ( {@link IndexReader#open(IndexWriter,boolean)}). Once you have a new {@link IndexReader}, it's relatively cheap to create a new IndexSearcher from it.
NOTE: {@link IndexSearcher} instances are completely thread safe, meaning multiple threads can call any of its methods, concurrently. If your application requires external synchronization, you should not synchronize on the IndexSearcher instance; use your own (non-Lucene) objects instead.

Examples of org.apache.lucene.search.IndexSearcher

        }
        writer.close();
        IndexReader reader = IndexReader.open(dir, policy, false);
        reader.deleteDocument(3*i+1);
        reader.setNorm(4*i+1, "content", 2.0F);
        IndexSearcher searcher = newSearcher(reader);
        ScoreDoc[] hits = searcher.search(query, null, 1000).scoreDocs;
        assertEquals(16*(1+i), hits.length);
        // this is a commit
        if (VERBOSE) {
          System.out.println("TEST: close reader numOnCommit=" + policy.numOnCommit);
        }
        reader.close();
        searcher.close();
      }
      conf = newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random))
          .setOpenMode(OpenMode.APPEND).setIndexDeletionPolicy(policy);
      mp = conf.getMergePolicy();
      if (mp instanceof LogMergePolicy) {
        setUseCompoundFile(mp, useCompoundFile);
      }
      IndexReader r = IndexReader.open(dir);
      final boolean wasOptimized = r.isOptimized();
      r.close();
      writer = new IndexWriter(dir, conf);
      writer.optimize();
      // this is a commit
      writer.close();


      assertEquals(2*(N+1)+1, policy.numOnInit);
      assertEquals(2*(N+2) - (wasOptimized ? 1:0), policy.numOnCommit);


      IndexSearcher searcher = new IndexSearcher(dir, false);
      ScoreDoc[] hits = searcher.search(query, null, 1000).scoreDocs;
      assertEquals(176, hits.length);


      // Simplistic check: just verify only the past N segments_N's still
      // exist, and, I can open a reader on each:
      long gen = SegmentInfos.getCurrentSegmentGeneration(dir);


      dir.deleteFile(IndexFileNames.SEGMENTS_GEN);
      int expectedCount = 176;
      searcher.close();
      for(int i=0;i<N+1;i++) {
        try {
          IndexReader reader = IndexReader.open(dir, true);


          // Work backwards in commits on what the expected
          // count should be.
          searcher = newSearcher(reader);
          hits = searcher.search(query, null, 1000).scoreDocs;
          if (i > 1) {
            if (i % 2 == 0) {
              expectedCount += 1;
            } else {
              expectedCount -= 17;
            }
          }
          assertEquals(expectedCount, hits.length);
          searcher.close();
          reader.close();
          if (i == N) {
            fail("should have failed on commits before last 5");
          }
        } catch (IOException e) {

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Examples of org.apache.lucene.search.IndexSearcher

        // this is a commit
        writer.close();
        IndexReader reader = IndexReader.open(dir, policy, false);
        reader.deleteDocument(3);
        reader.setNorm(5, "content", 2.0F);
        IndexSearcher searcher = newSearcher(reader);
        ScoreDoc[] hits = searcher.search(query, null, 1000).scoreDocs;
        assertEquals(16, hits.length);
        // this is a commit
        reader.close();
        searcher.close();


        writer = new IndexWriter(dir, newIndexWriterConfig(
            TEST_VERSION_CURRENT, new MockAnalyzer(random))
            .setOpenMode(OpenMode.CREATE).setIndexDeletionPolicy(policy));
        // This will not commit: there are no changes
        // pending because we opened for "create":
        writer.close();
      }


      assertEquals(3*(N+1), policy.numOnInit);
      assertEquals(3*(N+1)+1, policy.numOnCommit);


      IndexSearcher searcher = new IndexSearcher(dir, false);
      ScoreDoc[] hits = searcher.search(query, null, 1000).scoreDocs;
      assertEquals(0, hits.length);


      // Simplistic check: just verify only the past N segments_N's still
      // exist, and, I can open a reader on each:
      long gen = SegmentInfos.getCurrentSegmentGeneration(dir);


      dir.deleteFile(IndexFileNames.SEGMENTS_GEN);
      int expectedCount = 0;


      for(int i=0;i<N+1;i++) {
        try {
          IndexReader reader = IndexReader.open(dir, true);


          // Work backwards in commits on what the expected
          // count should be.
          searcher = newSearcher(reader);
          hits = searcher.search(query, null, 1000).scoreDocs;
          assertEquals(expectedCount, hits.length);
          searcher.close();
          if (expectedCount == 0) {
            expectedCount = 16;
          } else if (expectedCount == 16) {
            expectedCount = 17;
          } else if (expectedCount == 17) {

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