Package org.apache.accumulo.core.iterators.system

Examples of org.apache.accumulo.core.iterators.system.ColumnFamilySkippingIterator.seek()

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    }
    assertEquals(tm1, tm2);
   
    HashSet<ByteSequence> colfams = new HashSet<ByteSequence>();
    colfams.add(new ArrayByteSequence("cf2"));
    cfi.seek(new Range(), colfams, true);
    aten(cfi, "r2", "cf2", "cq4", 5, "v4");
    aten(cfi, "r2", "cf2", "cq5", 5, "v5");
    assertFalse(cfi.hasTop());
   
    colfams.add(new ArrayByteSequence("cf3"));
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    aten(cfi, "r2", "cf2", "cq5", 5, "v5");
    assertFalse(cfi.hasTop());
   
    colfams.add(new ArrayByteSequence("cf3"));
    colfams.add(new ArrayByteSequence("cf4"));
    cfi.seek(new Range(), colfams, true);
    aten(cfi, "r2", "cf2", "cq4", 5, "v4");
    aten(cfi, "r2", "cf2", "cq5", 5, "v5");
    aten(cfi, "r3", "cf3", "cq6", 5, "v6");
    assertFalse(cfi.hasTop());
   
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    aten(cfi, "r2", "cf2", "cq4", 5, "v4");
    aten(cfi, "r2", "cf2", "cq5", 5, "v5");
    aten(cfi, "r3", "cf3", "cq6", 5, "v6");
    assertFalse(cfi.hasTop());
   
    cfi.seek(new Range(), colfams, false);
    aten(cfi, "r1", "cf1", "cq1", 5, "v1");
    aten(cfi, "r1", "cf1", "cq3", 5, "v2");
    aten(cfi, "r2", "cf1", "cq1", 5, "v3");
    assertFalse(cfi.hasTop());
   
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    ColumnFamilySkippingIterator cfi = new ColumnFamilySkippingIterator(ci);
    HashSet<ByteSequence> colfams = new HashSet<ByteSequence>();
    colfams.add(new ArrayByteSequence(String.format("%06d", 4)));
   
    Range range = new Range(nk(0, 4, 0, 6), true, nk(0, 400, 0, 6), true);
    cfi.seek(range, colfams, true);
   
    assertTrue(cfi.hasTop());
    assertEquals(nk(0, 4, 0, 6), cfi.getTopKey());
    cfi.next();
    assertFalse(cfi.hasTop());
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    assertEquals(nk(0, 4, 0, 6), cfi.getTopKey());
    cfi.next();
    assertFalse(cfi.hasTop());
   
    colfams.add(new ArrayByteSequence(String.format("%06d", 500)));
    cfi.seek(range, colfams, true);
   
    assertTrue(cfi.hasTop());
    assertEquals(nk(0, 4, 0, 6), cfi.getTopKey());
    cfi.next();
    assertFalse(cfi.hasTop());
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    assertEquals(nk(0, 4, 0, 6), cfi.getTopKey());
    cfi.next();
    assertFalse(cfi.hasTop());
   
    range = new Range(nk(0, 4, 0, 6), true, nk(1, 400, 0, 6), true);
    cfi.seek(range, colfams, true);
   
    assertTrue(cfi.hasTop());
    assertEquals(nk(0, 4, 0, 6), cfi.getTopKey());
    cfi.next();
    assertTrue(cfi.hasTop());
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    ArrayList<ByteSequence> columns = new ArrayList<ByteSequence>();
    columns.add(new ArrayByteSequence("bar"));
   
    // this seek resulted in an infinite loop before a bug was fixed
    cfsi.seek(new Range("r1"), columns, true);
   
    assertFalse(cfsi.hasTop());
   
    ski1.close();
  }
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