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(java.io.OutputStream out)	Prepare the serializer for writing.
void	serialize(T t)	Serialize t to the underlying output stream.

Method Detail

open

void open(java.io.OutputStream out)
   throws java.io.IOException

Prepare the serializer for writing.

Parameters:

out - output stream.

Throws:

java.io.IOException - raised on errors performing I/O.

serialize

void serialize(T t)
        throws java.io.IOException

Serialize t to the underlying output stream.

Parameters:

t - t.

Throws:

java.io.IOException - raised on errors performing I/O.

close

void close()
    throws java.io.IOException

Close the underlying output stream and clear up any resources.

Throws:

java.io.IOException - raised on errors performing I/O.