Interface SequenceFormat

  • All Superinterfaces:
    Serializable
    All Known Implementing Classes:
    DefaultSequenceFormat

    public interface SequenceFormat
    extends Serializable
    Interface for converting TridentTuple objects to HDFS sequence file key-value pairs.
    • Method Summary

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method Description
      org.apache.hadoop.io.Writable key​(TridentTuple tuple)
      Given a tuple, return the key that should be written to the sequence file.
      Class keyClass()
      Key class used by implementation (e.g.
      org.apache.hadoop.io.Writable value​(TridentTuple tuple)
      Given a tuple, return the value that should be written to the sequence file.
      Class valueClass()
      Value class used by implementation (e.g.
    • Method Detail

      • keyClass

        Class keyClass()
        Key class used by implementation (e.g. IntWritable.class, etc.).
      • valueClass

        Class valueClass()
        Value class used by implementation (e.g. Text.class, etc.).
      • key

        org.apache.hadoop.io.Writable key​(TridentTuple tuple)
        Given a tuple, return the key that should be written to the sequence file.
      • value

        org.apache.hadoop.io.Writable value​(TridentTuple tuple)
        Given a tuple, return the value that should be written to the sequence file.