Examples of org.apache.accumulo.core.client.admin.TableOperations.deleteRows()

Package org.apache.accumulo.core.client.admin

Class org.apache.accumulo.core.client.admin.TableOperations

Examples of org.apache.accumulo.core.client.admin.TableOperations.deleteRows()

org.apache.accumulo.core.client.admin.TableOperations.deleteRows()
Delete rows between (start, end] @param tableName the table to merge @param start delete rows after this, null means the first row of the table @param end last row to be deleted, inclusive, null means the last row of the table

        m.put(new Text("cf"), new Text("" + c), new Value(("" + c).getBytes()));
      }
      bw.addMutation(m);
    }
    bw.flush();
    to.deleteRows("test", new Text("1"), new Text("2"));
    Scanner s = connector.createScanner("test", Authorizations.EMPTY);
    int oneCnt = 0;
    for (Entry<Key,Value> entry : s) {
      char rowStart = entry.getKey().getRow().toString().charAt(0);
      Assert.assertTrue(rowStart != '2');

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    }
    bw.flush();


    // test null end
    // will remove rows 4 through 9 (6 * 5 = 30 entries)
    to.deleteRows("test2", new Text("30"), null);
    Scanner s = connector.createScanner("test2", Authorizations.EMPTY);
    int rowCnt = 0;
    for (Entry<Key,Value> entry : s) {
      String rowId = entry.getKey().getRow().toString();
      Assert.assertFalse(rowId.startsWith("30"));

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    s.close();
    Assert.assertEquals(120, rowCnt);


    // test null start
    // will remove 0-1, 10-19, 2
    to.deleteRows("test2", null, new Text("2"));
    s = connector.createScanner("test2", Authorizations.EMPTY);
    rowCnt = 0;
    for (Entry<Key,Value> entry : s) {
      char rowStart = entry.getKey().getRow().toString().charAt(0);
      Assert.assertTrue(rowStart >= '2');

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    s.close();
    Assert.assertEquals(55, rowCnt);


    // test null start and end
    // deletes everything still left
    to.deleteRows("test2", null, null);
    s = connector.createScanner("test2", Authorizations.EMPTY);
    rowCnt = 0;
    for (@SuppressWarnings("unused")
    Entry<Key,Value> entry : s) {
      rowCnt++;

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