Class BitComparator

src/BitComparator.java:42–120

A bitwise comparator used in comparison filters. Performs the specified bitwise operation on each of the bytes with the specified byte array. Returns whether the result is non-zero. Only EQUAL and NOT_EQUAL comparisons are valid with this comparator. @since 1.6

 * @since 1.6
 */
public final class BitComparator extends FilterComparator {

  /** Bit operators. */
  public enum BitwiseOp {
    /** Logical 'and'. */
    AND,
    /** Logical 'or'.  */
    OR,
    /** Logical 'xor'. */
    XOR,
  }

  private static final byte[] NAME =
      Bytes.UTF8("org.apache.hadoop.hbase.filter.BitComparator");
  private static final byte CODE = 48;

  private final byte[] value;
  private final BitwiseOp bit_operator;

  public BitComparator(byte[] value, BitwiseOp bitOperator) {
    this.value = value;
    this.bit_operator = bitOperator;
  }

  public byte[] value() {
    return value.clone();
  }

  public BitwiseOp bitwiseOperator() {
    return bit_operator;
  }

  @Override
  byte[] name() {
    return NAME;
  }

  @Override
  ComparatorPB.Comparator toProtobuf() {
    ByteString byte_string = ComparatorPB
        .BitComparator
        .newBuilder()
        .setComparable(
            ComparatorPB
                .ByteArrayComparable
                .newBuilder()
                .setValue(Bytes.wrap(value)))
        .setBitwiseOp(ComparatorPB
            .BitComparator.BitwiseOp.valueOf(bit_operator.name()))
        .build()
        .toByteString();
    return super.toProtobuf(byte_string);
  }

  @Override
  void serializeOld(ChannelBuffer buf) {
    super.serializeOld(buf);              // super.predictSerializedSize()
    // Write class code