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

Class org.apache.lucene.index.IndexReader

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

org.apache.lucene.index.IndexReader.leaves()
Returns the reader's leaves, or itself if this reader is atomic. This is a convenience method calling {@code this.getContext().leaves()}. @see IndexReaderContext#leaves()

      IndexSearcher indexSearcher = obtainSearcher();
      final List<TermsEnum> termsEnums = new ArrayList<TermsEnum>();


      final IndexReader reader = searcher.getIndexReader();
      if (reader.maxDoc() > 0) {
        for (final AtomicReaderContext ctx : reader.leaves()) {
          Terms terms = ctx.reader().terms(F_WORD);
          if (terms != null)
            termsEnums.add(terms.iterator(null));
        }
      }

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    }
    
    w.forceMerge(1);
    IndexReader reader = w.getReader();
    w.close();
    assertEquals(1, reader.leaves().size());
    
    
    
    AtomicReaderContext context = reader.leaves().get(0);
    TermsFilter tf = new TermsFilter(terms);

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    w.close();
    assertEquals(1, reader.leaves().size());
    
    
    
    AtomicReaderContext context = reader.leaves().get(0);
    TermsFilter tf = new TermsFilter(terms);


    FixedBitSet bits = (FixedBitSet) tf.getDocIdSet(context, context.reader().getLiveDocs());
    assertEquals("Must be num fields - 1 since we skip only one field", num-1, bits.cardinality());  
    reader.close();

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      }
    }
    w.forceMerge(1);
    IndexReader reader = w.getReader();
    w.close();
    assertEquals(1, reader.leaves().size());
    AtomicReaderContext context = reader.leaves().get(0);
    TermsFilter tf = new TermsFilter(new ArrayList<Term>(terms));


    FixedBitSet bits = (FixedBitSet) tf.getDocIdSet(context, context.reader().getLiveDocs());
    assertEquals(context.reader().numDocs(), bits.cardinality());

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    }
    w.forceMerge(1);
    IndexReader reader = w.getReader();
    w.close();
    assertEquals(1, reader.leaves().size());
    AtomicReaderContext context = reader.leaves().get(0);
    TermsFilter tf = new TermsFilter(new ArrayList<Term>(terms));


    FixedBitSet bits = (FixedBitSet) tf.getDocIdSet(context, context.reader().getLiveDocs());
    assertEquals(context.reader().numDocs(), bits.cardinality());  
    reader.close();

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    BytesRef scratch = new BytesRef();
    // Iterate through the results:
    for (int i = 0; i < hits.scoreDocs.length; i++) {
      Document hitDoc = isearcher.doc(hits.scoreDocs[i].doc);
      assertEquals(text, hitDoc.get("fieldname"));
      assert ireader.leaves().size() == 1;
      NumericDocValues dv = ireader.leaves().get(0).reader().getNumericDocValues("dv1");
      assertEquals(5, dv.get(hits.scoreDocs[i].doc));
      BinaryDocValues dv2 = ireader.leaves().get(0).reader().getBinaryDocValues("dv2");
      dv2.get(hits.scoreDocs[i].doc, scratch);
      assertEquals(new BytesRef("hello world"), scratch);

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    // Iterate through the results:
    for (int i = 0; i < hits.scoreDocs.length; i++) {
      Document hitDoc = isearcher.doc(hits.scoreDocs[i].doc);
      assertEquals(text, hitDoc.get("fieldname"));
      assert ireader.leaves().size() == 1;
      NumericDocValues dv = ireader.leaves().get(0).reader().getNumericDocValues("dv1");
      assertEquals(5, dv.get(hits.scoreDocs[i].doc));
      BinaryDocValues dv2 = ireader.leaves().get(0).reader().getBinaryDocValues("dv2");
      dv2.get(hits.scoreDocs[i].doc, scratch);
      assertEquals(new BytesRef("hello world"), scratch);
    }

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      Document hitDoc = isearcher.doc(hits.scoreDocs[i].doc);
      assertEquals(text, hitDoc.get("fieldname"));
      assert ireader.leaves().size() == 1;
      NumericDocValues dv = ireader.leaves().get(0).reader().getNumericDocValues("dv1");
      assertEquals(5, dv.get(hits.scoreDocs[i].doc));
      BinaryDocValues dv2 = ireader.leaves().get(0).reader().getBinaryDocValues("dv2");
      dv2.get(hits.scoreDocs[i].doc, scratch);
      assertEquals(new BytesRef("hello world"), scratch);
    }


    ireader.close();

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  private boolean indexContainsField(String fieldName) throws IOException {
    IndexReaderAccessor indexReaderAccessor = getSearchFactory().getIndexReaderAccessor();
    IndexReader indexReader = indexReaderAccessor.open( WorkingPerson.class );
    try {
      for ( AtomicReaderContext leave : indexReader.leaves() ) {
        if ( leave.reader().terms( fieldName ) != null ) {
          return true;
        }
      }
      return false;

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    }
    
    w.forceMerge(1);
    IndexReader reader = w.getReader();
    w.close();
    assertEquals(1, reader.leaves().size());
    
    
    
    AtomicReaderContext context = reader.leaves().get(0);
    TermsFilter tf = new TermsFilter(terms);

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