Package org.apache.hadoop.io.serializer

Interface Serializer<T>

Type Parameters:
T - generic type.
@LimitedPrivate({"HDFS","MapReduce"}) @Evolving public interface Serializer<T>

Provides a facility for serializing objects of type <T> to an OutputStream.

Serializers are stateful, but must not buffer the output since other producers may write to the output between calls to serialize(Object).

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    close()
    Close the underlying output stream and clear up any resources.
    void
    open(OutputStream out)
    Prepare the serializer for writing.
    void
    serialize(T t)
    Serialize t to the underlying output stream.

  • Method Details

    • open

      void open(OutputStream out) throws IOException

      Prepare the serializer for writing.

      Parameters:
      out - output stream.
      Throws:
      IOException - raised on errors performing I/O.

    • serialize

      void serialize(T t) throws IOException

      Serialize t to the underlying output stream.

      Parameters:
      t - t.
      Throws:
      IOException - raised on errors performing I/O.

    • close

      void close() throws IOException

      Close the underlying output stream and clear up any resources.

      Throws:
      IOException - raised on errors performing I/O.