Package org.apache.lucene.index

Examples of org.apache.lucene.index.IndexReader.docFreq()

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    public static void getTermInfo(Directory dir, Term term) throws Exception {
    IndexReader reader = IndexReader.open(dir);
   
    long totalTF = HighFreqTerms.getTotalTermFreq(reader, term);
    System.out.printf("%s:%s \t total_tf = %,d \t doc freq = %,d \n",
        term.field(), term.text(), totalTF, reader.docFreq(term));
  }
  
  private static void usage() {
    System.out
        .println("\n\nusage:\n\t"
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        IndexReader reader = IndexReader.open(dir, false);
        Term aaa = new Term("content", "aaa");
        Term bbb = new Term("content", "bbb");
        Term ccc = new Term("content", "ccc");
        assertEquals(37, reader.docFreq(ccc));
        reader.deleteDocument(0);
        assertEquals(37, reader.docFreq(aaa));
        dir.tweakBufferSizes();
        reader.deleteDocument(4);
        assertEquals(reader.docFreq(bbb), 37);
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        Term aaa = new Term("content", "aaa");
        Term bbb = new Term("content", "bbb");
        Term ccc = new Term("content", "ccc");
        assertEquals(37, reader.docFreq(ccc));
        reader.deleteDocument(0);
        assertEquals(37, reader.docFreq(aaa));
        dir.tweakBufferSizes();
        reader.deleteDocument(4);
        assertEquals(reader.docFreq(bbb), 37);
        dir.tweakBufferSizes();
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        assertEquals(37, reader.docFreq(ccc));
        reader.deleteDocument(0);
        assertEquals(37, reader.docFreq(aaa));
        dir.tweakBufferSizes();
        reader.deleteDocument(4);
        assertEquals(reader.docFreq(bbb), 37);
        dir.tweakBufferSizes();

        IndexSearcher searcher = newSearcher(reader);
        ScoreDoc[] hits = searcher.search(new TermQuery(bbb), null, 1000).scoreDocs;
        dir.tweakBufferSizes();
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        IndexReader reader = IndexReader.open(dir, false);
        Term aaa = new Term("content", "aaa");
        Term bbb = new Term("content", "bbb");
        Term ccc = new Term("content", "ccc");
        assertEquals(37, reader.docFreq(ccc));
        reader.deleteDocument(0);
        assertEquals(37, reader.docFreq(aaa));
        dir.tweakBufferSizes();
        reader.deleteDocument(4);
        assertEquals(reader.docFreq(bbb), 37);
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        Term aaa = new Term("content", "aaa");
        Term bbb = new Term("content", "bbb");
        Term ccc = new Term("content", "ccc");
        assertEquals(37, reader.docFreq(ccc));
        reader.deleteDocument(0);
        assertEquals(37, reader.docFreq(aaa));
        dir.tweakBufferSizes();
        reader.deleteDocument(4);
        assertEquals(reader.docFreq(bbb), 37);
        dir.tweakBufferSizes();
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        assertEquals(37, reader.docFreq(ccc));
        reader.deleteDocument(0);
        assertEquals(37, reader.docFreq(aaa));
        dir.tweakBufferSizes();
        reader.deleteDocument(4);
        assertEquals(reader.docFreq(bbb), 37);
        dir.tweakBufferSizes();

        IndexSearcher searcher = newSearcher(reader);
        ScoreDoc[] hits = searcher.search(new TermQuery(bbb), null, 1000).scoreDocs;
        dir.tweakBufferSizes();
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        IndexReader reader = IndexReader.open(dir, false);
        Term aaa = new Term("content", "aaa");
        Term bbb = new Term("content", "bbb");
        Term ccc = new Term("content", "ccc");
        assertEquals(37, reader.docFreq(ccc));
        reader.deleteDocument(0);
        assertEquals(37, reader.docFreq(aaa));
        dir.tweakBufferSizes();
        reader.deleteDocument(4);
        assertEquals(reader.docFreq(bbb), 37);
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        Term aaa = new Term("content", "aaa");
        Term bbb = new Term("content", "bbb");
        Term ccc = new Term("content", "ccc");
        assertEquals(37, reader.docFreq(ccc));
        reader.deleteDocument(0);
        assertEquals(37, reader.docFreq(aaa));
        dir.tweakBufferSizes();
        reader.deleteDocument(4);
        assertEquals(reader.docFreq(bbb), 37);
        dir.tweakBufferSizes();
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        assertEquals(37, reader.docFreq(ccc));
        reader.deleteDocument(0);
        assertEquals(37, reader.docFreq(aaa));
        dir.tweakBufferSizes();
        reader.deleteDocument(4);
        assertEquals(reader.docFreq(bbb), 37);
        dir.tweakBufferSizes();

        IndexSearcher searcher = newSearcher(reader);
        ScoreDoc[] hits = searcher.search(new TermQuery(bbb), null, 1000).scoreDocs;
        dir.tweakBufferSizes();
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