Package org.apache.lucene.index

Examples of org.apache.lucene.index.AtomicReader.terms()

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    int numIters = atLeast(3);
    MemoryIndex memory = new MemoryIndex(true,  random().nextInt(50) * 1024 * 1024);
    for (int i = 0; i < numIters; i++) { // check reuse
      memory.addField("foo", "bar", analyzer);
      AtomicReader reader = (AtomicReader) memory.createSearcher().getIndexReader();
      assertEquals(1, reader.terms("foo").getSumTotalTermFreq());
      DocsAndPositionsEnum disi = reader.termPositionsEnum(new Term("foo", "bar"));
      int docid = disi.docID();
      assertEquals(-1, docid);
      assertTrue(disi.nextDoc() != DocIdSetIterator.NO_MORE_DOCS);
      assertEquals(0, disi.nextPosition());
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      assertEquals(0, disi.nextPosition());
      assertEquals(0, disi.startOffset());
      assertEquals(3, disi.endOffset());
     
      // now reuse and check again
      TermsEnum te = reader.terms("foo").iterator(null);
      assertTrue(te.seekExact(new BytesRef("bar")));
      disi = te.docsAndPositions(null, disi);
      docid = disi.docID();
      assertEquals(-1, docid);
      assertTrue(disi.nextDoc() != DocIdSetIterator.NO_MORE_DOCS);
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    MemoryIndex mindex = new MemoryIndex(random().nextBoolean(),  random().nextInt(50) * 1024 * 1024);
    MockAnalyzer mockAnalyzer = new MockAnalyzer(random());
    mindex.addField("field", "the quick brown fox", mockAnalyzer);
    mindex.addField("field", "jumps over the", mockAnalyzer);
    AtomicReader reader = (AtomicReader) mindex.createSearcher().getIndexReader();
    assertEquals(7, reader.terms("field").getSumTotalTermFreq());
    PhraseQuery query = new PhraseQuery();
    query.add(new Term("field", "fox"));
    query.add(new Term("field", "jumps"));
    assertTrue(mindex.search(query) > 0.1);
    mindex.reset();
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    AtomicReader reader = (AtomicReader) mindex.createSearcher().getIndexReader();
    assertNull(reader.getNumericDocValues("not-in-index"));
    assertNull(reader.getNormValues("not-in-index"));
    assertNull(reader.termDocsEnum(new Term("not-in-index", "foo")));
    assertNull(reader.termPositionsEnum(new Term("not-in-index", "foo")));
    assertNull(reader.terms("not-in-index"));
  }
 
  public void testDuellMemIndex() throws IOException {
    LineFileDocs lineFileDocs = new LineFileDocs(random());
    int numDocs = atLeast(10);
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      int base = 0;
      TermsEnum te = null;
      DocsEnum docs = null;
      for (final AtomicReaderContext ctx : r.leaves()) {
        final AtomicReader ar = ctx.reader();
        final Terms terms = ar.terms(Consts.FULL);
        te = terms.iterator(te);
        while (te.next() != null) {
          FacetLabel cp = new FacetLabel(FacetsConfig.stringToPath(te.term().utf8ToString()));
          final int ordinal = addCategory(cp);
          docs = te.docs(null, docs, DocsEnum.FLAG_NONE);
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  public DocsEnum randomDocsEnum(String field, BytesRef term, List<AtomicReaderContext> readers, Bits bits) throws IOException {
    if (random().nextInt(10) == 0) {
      return null;
    }
    AtomicReader indexReader = readers.get(random().nextInt(readers.size())).reader();
    Terms terms = indexReader.terms(field);
    if (terms == null) {
      return null;
    }
    TermsEnum iterator = terms.iterator(null);
    if (iterator.seekExact(term)) {
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      bi.setText(content);
      int doc = docids[i];
      int leaf = ReaderUtil.subIndex(doc, leaves);
      AtomicReaderContext subContext = leaves.get(leaf);
      AtomicReader r = subContext.reader();
      Terms t = r.terms(field);
      if (t == null) {
        continue; // nothing to do
      }
      if (leaf != lastLeaf) {
        termsEnum = t.iterator(null);
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    writer.commit();

    DirectoryReader open = DirectoryReader.open(dir);
    for (AtomicReaderContext ctx : open.leaves()) {
      AtomicReader indexReader = ctx.reader();
      Terms terms = indexReader.terms("body");
      TermsEnum iterator = terms.iterator(null);
      IdentityHashMap<DocsEnum, Boolean> enums = new IdentityHashMap<DocsEnum, Boolean>();
      MatchNoBits bits = new Bits.MatchNoBits(indexReader.maxDoc());
      while ((iterator.next()) != null) {
        DocsEnum docs = iterator.docs(random().nextBoolean() ? bits : new Bits.MatchNoBits(indexReader.maxDoc()), null, random().nextBoolean() ? DocsEnum.FLAG_FREQS : DocsEnum.FLAG_NONE);
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      int base = 0;
      TermsEnum te = null;
      DocsEnum docs = null;
      for (final AtomicReaderContext ctx : r.leaves()) {
        final AtomicReader ar = ctx.reader();
        final Terms terms = ar.terms(Consts.FULL);
        te = terms.iterator(te);
        while (te.next() != null) {
          String value = te.term().utf8ToString();
          CategoryPath cp = new CategoryPath(value, delimiter);
          final int ordinal = addCategory(cp);
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      assert !terms.isEmpty();
      final AtomicReader reader = context.reader();
      final Bits liveDocs = acceptDocs;
      PostingsAndFreq[] postingsFreqs = new PostingsAndFreq[terms.size()];

      final Terms fieldTerms = reader.terms(field);
      if (fieldTerms == null) {
        return null;
      }

      // Reuse single TermsEnum below:
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