Package org.apache.accumulo.core.iterators

Examples of org.apache.accumulo.core.iterators.MultiIterator.seek()

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    for (int i = 0; i < readers.length; i++) {
      iters.add(readers[i]);
    }
   
    MultiIterator mmfi = new MultiIterator(iters, new KeyExtent(new Text(""), null, null));
    mmfi.seek(new Range(new Key(), null), LocalityGroupUtil.EMPTY_CF_SET, false);
   
    long t1 = System.currentTimeMillis();
    int count = 0;
    int misses = 0;
    for (Key key : queries) {
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    long t1 = System.currentTimeMillis();
    int count = 0;
    int misses = 0;
    for (Key key : queries) {
      mmfi.seek(new Range(key, null), LocalityGroupUtil.EMPTY_CF_SET, false);
      if (mmfi.getTopKey().compareTo(key) != 0)
        misses++;
      count++;
    }
   
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      List<SortedKeyValueIterator<Key,Value>> iters = new ArrayList<SortedKeyValueIterator<Key,Value>>(mapfiles.length);
      for (int i = 0; i < mapfiles.length; i++)
        iters.add(mapfiles[i]);
     
      MultiIterator mmfi = new MultiIterator(iters, new KeyExtent(new Text(""), endRow, prevEndRow));
      mmfi.seek(new Range(new Key(startRow), null), LocalityGroupUtil.EMPTY_CF_SET, false);
     
      int count = 0;
     
      long t1 = System.currentTimeMillis();
     
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        for (SortedKeyValueIterator<Key,Value> iter : iters)
          iter.seek(range, LocalityGroupUtil.EMPTY_CF_SET, false);
      mi = new MultiIterator(iters, range);
     
      if (init)
        mi.seek(range, LocalityGroupUtil.EMPTY_CF_SET, false);
    }
   
    if (seekKey != null) {
      mi.seek(new Range(seekKey, null), EMPTY_COL_FAMS, false);
    }
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      if (init)
        mi.seek(range, LocalityGroupUtil.EMPTY_CF_SET, false);
    }
   
    if (seekKey != null) {
      mi.seek(new Range(seekKey, null), EMPTY_COL_FAMS, false);
    }
   
    int i = start;
    while (mi.hasTop()) {
      if (incrRow)
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    skvil.add(new SortedMapIterator(tm1));
    MultiIterator mi = new MultiIterator(skvil, true);
   
    assertFalse(mi.hasTop());
   
    mi.seek(nrng(0, 6), EMPTY_COL_FAMS, false);
    assertFalse(mi.hasTop());
  }
 
  public void test5() throws IOException {
    // TEST overlapping inputs AND prevRow AND endRow AND seek
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    nkv(tm1, 6, 0, false, "3");
   
    List<SortedKeyValueIterator<Key,Value>> skvil = new ArrayList<SortedKeyValueIterator<Key,Value>>(1);
    skvil.add(new SortedMapIterator(tm1));
    MultiIterator mi = new MultiIterator(skvil, true);
    mi.seek(new Range(null, true, nk(5, 9), false), EMPTY_COL_FAMS, false);
   
    assertTrue(mi.hasTop());
    assertTrue(mi.getTopKey().equals(nk(3, 0)));
    assertTrue(mi.getTopValue().toString().equals("1"));
    mi.next();
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    assertTrue(mi.getTopValue().toString().equals("2"));
    mi.next();
   
    assertFalse(mi.hasTop());
   
    mi.seek(new Range(nk(4, 10), true, nk(5, 9), false), EMPTY_COL_FAMS, false);
    assertTrue(mi.hasTop());
    assertTrue(mi.getTopKey().equals(nk(4, 0)));
    assertTrue(mi.getTopValue().toString().equals("2"));
    mi.next();
   
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    assertTrue(mi.getTopValue().toString().equals("2"));
    mi.next();
   
    assertFalse(mi.hasTop());
   
    mi.seek(new Range(nk(4, 10), true, nk(6, 0), false), EMPTY_COL_FAMS, false);
    assertTrue(mi.hasTop());
    assertTrue(mi.getTopKey().equals(nk(4, 0)));
    assertTrue(mi.getTopValue().toString().equals("2"));
    mi.next();
   
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    assertTrue(mi.getTopValue().toString().equals("2"));
    mi.next();
   
    assertFalse(mi.hasTop());
   
    mi.seek(new Range(nk(4, 10), true, nk(6, 0), true), EMPTY_COL_FAMS, false);
    assertTrue(mi.hasTop());
    assertTrue(mi.getTopKey().equals(nk(4, 0)));
    assertTrue(mi.getTopValue().toString().equals("2"));
    mi.next();
   
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