Examples of RowFilter

com.google.refine.browsing.RowFilter
Interface for judging if a particular row matches or doesn't match some particular criterion, such as a facet constraint.
javax.swing.RowFilter
value starts with "a", include it return true; } } // None of the columns start with "a"; return false so that this // entry is not shown return false; } }; RowFilter has two formal type parameters that allow you to create a RowFilter for a specific model. For example, the following assumes a specific model that is wrapping objects of type Person. Only Persons with an age over 20 will be shown:
```
 RowFilter<PersonModel,Integer> ageFilter = new RowFilter<PersonModel,Integer>() { public boolean include(Entry<? extends PersonModel, ? extends Integer> entry) { PersonModel personModel = entry.getModel(); Person person = personModel.getPerson(entry.getIdentifier()); if (person.getAge() > 20) { // Returning true indicates this row should be shown. return true; } // Age is <= 20, don't show it. return false; } }; PersonModel model = createPersonModel(); TableRowSorter<PersonModel> sorter = new TableRowSorter<PersonModel>(model); sorter.setRowFilter(ageFilter); 
```
@param < M> the type of the model; for example PersonModel @param < I> the type of the identifier; when usingTableRowSorter this will be Integer @see javax.swing.table.TableRowSorter @since 1.6
org.apache.hadoop.hbase.filter.RowFilter
This filter is used to filter based on the key. It takes an operator (equal, greater, not equal, etc) and a byte [] comparator for the row, and column qualifier portions of a key.
This filter can be wrapped with {@link WhileMatchFilter} to add more control.
Multiple filters can be combined using {@link FilterList}.
If an already known row range needs to be scanned, use {@link Scan} startand stop rows directly rather than a filter.
org.hbase.async.RowFilter
Filter rows based on the rowkey. Takes an operator (equal, greater, not equal, etc). and a filter comparator. @since 1.6
org.modeshape.jcr.query.NodeSequence.RowFilter

Examples of org.apache.hadoop.hbase.filter.RowFilter

      } break;
      case QualifierFilter: {
        filter = new QualifierFilter(CompareOp.valueOf(op), comparator.build());
      } break;
      case RowFilter: {
        filter = new RowFilter(CompareOp.valueOf(op), comparator.build());
      } break;
      case SingleColumnValueFilter: {
        filter = new SingleColumnValueFilter(Base64.decode(family),
          qualifier != null ? Base64.decode(qualifier) : null,
          CompareOp.valueOf(op), comparator.build());

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Examples of org.apache.hadoop.hbase.filter.RowFilter

    // Make sure key is of some substance... non-null and > than first key.
    assertTrue(key != null && key.length > 0 &&
      Bytes.BYTES_COMPARATOR.compare(key, new byte [] {'a', 'a', 'a'}) >= 0);
    LOG.info("Key=" + Bytes.toString(key));
    Scan s = startRow == null? new Scan(): new Scan(startRow);
    Filter f = new RowFilter(op, new BinaryComparator(key));
    f = new WhileMatchFilter(f);
    s.setFilter(f);
    return s;
  }

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Examples of org.apache.hadoop.hbase.filter.RowFilter

    // Make sure key is of some substance... non-null and > than first key.
    assertTrue(key != null && key.length > 0 &&
      Bytes.BYTES_COMPARATOR.compare(key, new byte [] {'a', 'a', 'a'}) >= 0);
    LOG.info("Key=" + Bytes.toString(key));
    Scan s = startRow == null? new Scan(): new Scan(startRow);
    Filter f = new RowFilter(op, new BinaryComparator(key));
    f = new WhileMatchFilter(f);
    s.setFilter(f);
    return s;
  }

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Examples of org.apache.hadoop.hbase.filter.RowFilter

    // Make sure key is of some substance... non-null and > than first key.
    assertTrue(key != null && key.length > 0 &&
      Bytes.BYTES_COMPARATOR.compare(key, new byte [] {'a', 'a', 'a'}) >= 0);
    LOG.info("Key=" + Bytes.toString(key));
    Scan s = startRow == null? new Scan(): new Scan(startRow);
    Filter f = new RowFilter(op, new BinaryComparator(key));
    f = new WhileMatchFilter(f);
    s.setFilter(f);
    return s;
  }

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Examples of org.apache.hadoop.hbase.filter.RowFilter


    Scan scan = new Scan();
    scan.setStartRow(Bytes.toBytes(1));
    scan.setStopRow(Bytes.toBytes(3));
    scan.addColumn(FAMILY, FAMILY);
    scan.setFilter(new RowFilter(CompareFilter.CompareOp.NOT_EQUAL, new BinaryComparator(Bytes.toBytes(1))));


    ResultScanner scanner = foo.getScanner(scan);
    Result[] bar = scanner.next(100);
    assertEquals(1, bar.length);
  }

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Examples of org.apache.hadoop.hbase.filter.RowFilter

    SplitLogTask sltDeserialized = SplitLogTask.parseFrom(bytes);
    assertTrue(slt.equals(sltDeserialized));
  }


  @Test public void testCompareFilter() throws Exception {
    Filter f = new RowFilter(CompareOp.EQUAL,
      new BinaryComparator(Bytes.toBytes("testRowOne-2")));
    byte [] bytes = f.toByteArray();
    Filter ff = RowFilter.parseFrom(bytes);
    assertNotNull(ff);
  }

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Examples of org.apache.hadoop.hbase.filter.RowFilter

    Filter rowFilter = null;
    String filterCriteria = (args.length > 3) ? args[3]: null;
    if (filterCriteria == null) return null;
    if (filterCriteria.startsWith("^")) {
      String regexPattern = filterCriteria.substring(1, filterCriteria.length());
      rowFilter = new RowFilter(CompareFilter.CompareOp.EQUAL, new RegexStringComparator(regexPattern));
    } else {
      rowFilter = new PrefixFilter(Bytes.toBytes(filterCriteria));
    }
    return rowFilter;
  }

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Examples of org.apache.hadoop.hbase.filter.RowFilter

    Filter rowFilter = null;
    String filterCriteria = (args.length > 3) ? args[3]: null;
    if (filterCriteria == null) return null;
    if (filterCriteria.startsWith("^")) {
      String regexPattern = filterCriteria.substring(1, filterCriteria.length());
      rowFilter = new RowFilter(CompareFilter.CompareOp.EQUAL, new RegexStringComparator(regexPattern));
    } else {
      rowFilter = new PrefixFilter(Bytes.toBytes(filterCriteria));
    }
    return rowFilter;
  }

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Examples of org.apache.hadoop.hbase.filter.RowFilter

    Filter exportFilter = null;
    String filterCriteria = (args.length > 5) ? args[5]: null;
    if (filterCriteria == null) return null;
    if (filterCriteria.startsWith("^")) {
      String regexPattern = filterCriteria.substring(1, filterCriteria.length());
      exportFilter = new RowFilter(CompareOp.EQUAL, new RegexStringComparator(regexPattern));
    } else {
      exportFilter = new PrefixFilter(Bytes.toBytes(filterCriteria));
    }
    return exportFilter;
  }

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Examples of org.apache.hadoop.hbase.filter.RowFilter

  @Test
  public void testRowFilter() throws Exception {
    // Match a single row, all keys
    long expectedRows = 1;
    long expectedKeys = colsPerRow;
    Filter f = new RowFilter(CompareOp.EQUAL,
        new BinaryComparator(Bytes.toBytes("testRowOne-2")));
    Scan s = new Scan();
    s.setFilter(f);
    verifyScanNoEarlyOut(s, expectedRows, expectedKeys);
    
    // Match a two rows, one from each group, using regex
    expectedRows = 2;
    expectedKeys = colsPerRow;
    f = new RowFilter(CompareOp.EQUAL,
        new RegexStringComparator("testRow.+-2"));
    s = new Scan();
    s.setFilter(f);
    verifyScanNoEarlyOut(s, expectedRows, expectedKeys);
    
    // Match rows less than
    // Expect all keys in one row
    expectedRows = 1;
    expectedKeys = colsPerRow;
    f = new RowFilter(CompareOp.LESS,
        new BinaryComparator(Bytes.toBytes("testRowOne-2")));
    s = new Scan();
    s.setFilter(f);
    verifyScanNoEarlyOut(s, expectedRows, expectedKeys);
    
    // Match rows less than or equal
    // Expect all keys in two rows
    expectedRows = 2;
    expectedKeys = colsPerRow;
    f = new RowFilter(CompareOp.LESS_OR_EQUAL,
        new BinaryComparator(Bytes.toBytes("testRowOne-2")));
    s = new Scan();
    s.setFilter(f);
    verifyScanNoEarlyOut(s, expectedRows, expectedKeys);
    
    // Match rows not equal
    // Expect all keys in all but one row
    expectedRows = numRows - 1;
    expectedKeys = colsPerRow;
    f = new RowFilter(CompareOp.NOT_EQUAL,
        new BinaryComparator(Bytes.toBytes("testRowOne-2")));
    s = new Scan();
    s.setFilter(f);
    verifyScanNoEarlyOut(s, expectedRows, expectedKeys);
    
    // Match keys greater or equal
    // Expect all keys in all but one row
    expectedRows = numRows - 1;
    expectedKeys = colsPerRow;
    f = new RowFilter(CompareOp.GREATER_OR_EQUAL,
        new BinaryComparator(Bytes.toBytes("testRowOne-2")));
    s = new Scan();
    s.setFilter(f);
    verifyScanNoEarlyOut(s, expectedRows, expectedKeys);
    
    // Match keys greater
    // Expect all keys in all but two rows
    expectedRows = numRows - 2;
    expectedKeys = colsPerRow;
    f = new RowFilter(CompareOp.GREATER,
        new BinaryComparator(Bytes.toBytes("testRowOne-2")));
    s = new Scan();
    s.setFilter(f);
    verifyScanNoEarlyOut(s, expectedRows, expectedKeys);
    
    // Match rows not equal to testRowTwo-2
    // Look across rows and fully validate the keys and ordering
    // Should see all keys in all rows but testRowTwo-2
    f = new RowFilter(CompareOp.NOT_EQUAL,
        new BinaryComparator(Bytes.toBytes("testRowOne-2")));
    s = new Scan();
    s.setFilter(f);
    
    KeyValue [] kvs = {
        // testRowOne-0
        new KeyValue(ROWS_ONE[0], FAMILIES[0], QUALIFIERS_ONE[0], VALUES[0]),
        new KeyValue(ROWS_ONE[0], FAMILIES[0], QUALIFIERS_ONE[2], VALUES[0]),
        new KeyValue(ROWS_ONE[0], FAMILIES[0], QUALIFIERS_ONE[3], VALUES[0]),
        new KeyValue(ROWS_ONE[0], FAMILIES[1], QUALIFIERS_ONE[0], VALUES[0]),
        new KeyValue(ROWS_ONE[0], FAMILIES[1], QUALIFIERS_ONE[2], VALUES[0]),
        new KeyValue(ROWS_ONE[0], FAMILIES[1], QUALIFIERS_ONE[3], VALUES[0]),
        // testRowOne-3
        new KeyValue(ROWS_ONE[3], FAMILIES[0], QUALIFIERS_ONE[0], VALUES[0]),
        new KeyValue(ROWS_ONE[3], FAMILIES[0], QUALIFIERS_ONE[2], VALUES[0]),
        new KeyValue(ROWS_ONE[3], FAMILIES[0], QUALIFIERS_ONE[3], VALUES[0]),
        new KeyValue(ROWS_ONE[3], FAMILIES[1], QUALIFIERS_ONE[0], VALUES[0]),
        new KeyValue(ROWS_ONE[3], FAMILIES[1], QUALIFIERS_ONE[2], VALUES[0]),
        new KeyValue(ROWS_ONE[3], FAMILIES[1], QUALIFIERS_ONE[3], VALUES[0]),
        // testRowTwo-0
        new KeyValue(ROWS_TWO[0], FAMILIES[0], QUALIFIERS_TWO[0], VALUES[1]),
        new KeyValue(ROWS_TWO[0], FAMILIES[0], QUALIFIERS_TWO[2], VALUES[1]),
        new KeyValue(ROWS_TWO[0], FAMILIES[0], QUALIFIERS_TWO[3], VALUES[1]),
        new KeyValue(ROWS_TWO[0], FAMILIES[1], QUALIFIERS_TWO[0], VALUES[1]),
        new KeyValue(ROWS_TWO[0], FAMILIES[1], QUALIFIERS_TWO[2], VALUES[1]),
        new KeyValue(ROWS_TWO[0], FAMILIES[1], QUALIFIERS_TWO[3], VALUES[1]),
        // testRowTwo-2
        new KeyValue(ROWS_TWO[2], FAMILIES[0], QUALIFIERS_TWO[0], VALUES[1]),
        new KeyValue(ROWS_TWO[2], FAMILIES[0], QUALIFIERS_TWO[2], VALUES[1]),
        new KeyValue(ROWS_TWO[2], FAMILIES[0], QUALIFIERS_TWO[3], VALUES[1]),
        new KeyValue(ROWS_TWO[2], FAMILIES[1], QUALIFIERS_TWO[0], VALUES[1]),
        new KeyValue(ROWS_TWO[2], FAMILIES[1], QUALIFIERS_TWO[2], VALUES[1]),
        new KeyValue(ROWS_TWO[2], FAMILIES[1], QUALIFIERS_TWO[3], VALUES[1]),
        // testRowTwo-3
        new KeyValue(ROWS_TWO[3], FAMILIES[0], QUALIFIERS_TWO[0], VALUES[1]),
        new KeyValue(ROWS_TWO[3], FAMILIES[0], QUALIFIERS_TWO[2], VALUES[1]),
        new KeyValue(ROWS_TWO[3], FAMILIES[0], QUALIFIERS_TWO[3], VALUES[1]),
        new KeyValue(ROWS_TWO[3], FAMILIES[1], QUALIFIERS_TWO[0], VALUES[1]),
        new KeyValue(ROWS_TWO[3], FAMILIES[1], QUALIFIERS_TWO[2], VALUES[1]),
        new KeyValue(ROWS_TWO[3], FAMILIES[1], QUALIFIERS_TWO[3], VALUES[1]),
    };
    verifyScanFull(s, kvs);
    
    // Test across rows and groups with a regex
    // Filter out everything that doesn't match "*-2"
    // Expect all keys in two rows
    f = new RowFilter(CompareOp.EQUAL,
        new RegexStringComparator(".+-2"));
    s = new Scan();
    s.setFilter(f);
    
    kvs = new KeyValue [] {

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