Field Detail

• timestamps

  TreeSet<Long> timestamps

• MAX_LOG_TIMESTAMPS

  private static final int MAX_LOG_TIMESTAMPS

  See Also:

  Constant Field Values

• minTimeStamp

  long minTimeStamp

Constructor Detail

• TimestampsFilter

  public TimestampsFilter(List<Long> timestamps)

  Constructor for filter that retains only those cells whose timestamp (version) is in the specified list of timestamps.

  Parameters:

  timestamps -

Method Detail

• getTimestamps

  public List<Long> getTimestamps()

  Returns:

  the list of timestamps

• init

  private void init()

• getMin

  public long getMin()

  Gets the minimum timestamp requested by filter.

  Returns:

  minimum timestamp requested by filter.

• filterKeyValue

  public Filter.ReturnCode filterKeyValue(Cell v)

  Description copied from class: Filter
  A way to filter based on the column family, column qualifier and/or the column value. Return code is described below. This allows filters to filter only certain number of columns, then terminate without matching ever column. If filterRowKey returns true, filterKeyValue needs to be consistent with it. filterKeyValue can assume that filterRowKey has already been called for the row. If your filter returns ReturnCode.NEXT_ROW, it should return ReturnCode.NEXT_ROW until Filter.reset() is called just in case the caller calls for the next row. Concrete implementers can signal a failure condition in their code by throwing an IOException.

  Specified by:

  filterKeyValue in class Filter

  Parameters:

  v - the Cell in question

  Returns:

  code as described below

  See Also:

  Filter.ReturnCode

• transformCell

  public Cell transformCell(Cell v)

  Description copied from class: FilterBase
  By default no transformation takes place Give the filter a chance to transform the passed KeyValue. If the Cell is changed a new Cell object must be returned.

  Overrides:

  transformCell in class FilterBase

  Parameters:

  v - the KeyValue in question

  Returns:

  the changed KeyValue

  See Also:

  The transformed KeyValue is what is eventually returned to the client. Most filters will return the passed KeyValue unchanged., for an example of a transformation. Concrete implementers can signal a failure condition in their code by throwing an {@link IOException}.

• createFilterFromArguments

  public static Filter createFilterFromArguments(ArrayList<byte[]> filterArguments)

• toByteArray

  public byte[] toByteArray()

  Description copied from class: FilterBase
  Return length 0 byte array for Filters that don't require special serialization

  Overrides:

  toByteArray in class FilterBase

  Returns:

  The filter serialized using pb

• parseFrom

  public static TimestampsFilter parseFrom(byte[] pbBytes)
                                    throws DeserializationException

  Parameters:

  pbBytes - A pb serialized TimestampsFilter instance

  Returns:

  An instance of TimestampsFilter made from bytes

  Throws:

  DeserializationException

  See Also:

  toByteArray()

• areSerializedFieldsEqual

  boolean areSerializedFieldsEqual(Filter o)

  Description copied from class: FilterBase
  Default implementation so that writers of custom filters aren't forced to implement.

  Overrides:

  areSerializedFieldsEqual in class FilterBase

  Parameters:

  other -

  Returns:

  true if and only if the fields of the filter that are serialized are equal to the corresponding fields in other. Used for testing.

• toString

  public String toString()

  Description copied from class: FilterBase
  Return filter's info for debugging and logging purpose.

  Overrides:

  toString in class FilterBase

• toString

  protected String toString(int maxTimestamps)