com.github.pgasync.impl.io

Class DataRowDecoder

java.lang.Object

com.github.pgasync.impl.io.DataRowDecoder

All Implemented Interfaces:

Decoder<DataRow>

public class DataRowDecoder
extends java.lang.Object
implements Decoder<DataRow>

See PostgreSQL message formats

 DataRow (B)
  Byte1('D')
      Identifies the message as a data row.
  Int32
      Length of message contents in bytes, including self.
  Int16
      The number of column values that follow (possibly zero).
  Next, the following pair of fields appear for each column:
  Int32
      The length of the column value, in bytes (this count does not include itself). Can be zero. As a special case, -1 indicates a NULL column value. No value bytes follow in the NULL case.
  Byten
      The value of the column, in the format indicated by the associated format code. n is the above length.
 

Author:

Antti Laisi

Constructor Summary

Constructors

Constructor and Description
DataRowDecoder()

Method Summary

Modifier and Type	Method and Description
byte	getMessageId()
DataRow	read(java.nio.ByteBuffer buffer)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DataRowDecoder

public DataRowDecoder()

Method Detail

getMessageId

public byte getMessageId()

Specified by:

getMessageId in interface Decoder<DataRow>

Returns:

Protocol message id

read

public DataRow read(java.nio.ByteBuffer buffer)

Specified by:

read in interface Decoder<DataRow>

Returns:

Decoded message