com.github.pgasync.impl.io

Class ExtendedQueryEncoder

java.lang.Object

com.github.pgasync.impl.io.ExtendedQueryEncoder

All Implemented Interfaces:

Encoder<ExtendedQuery>

public class ExtendedQueryEncoder
extends java.lang.Object
implements Encoder<ExtendedQuery>

See PostgreSQL message formats

 Describe (F)
  Byte1('D')
      Identifies the message as a Describe command.
  Int32
      Length of message contents in bytes, including self.
  Byte1
      'S' to describe a prepared statement; or 'P' to describe a portal.
  String
      The name of the prepared statement or portal to describe (an empty string selects the unnamed prepared statement or portal).

 Execute (F)
  Byte1('E')
      Identifies the message as an Execute command.
  Int32
      Length of message contents in bytes, including self.
  String
      The name of the portal to execute (an empty string selects the unnamed portal).
  Int32
      Maximum number of rows to return, if portal contains a query that returns rows (ignored otherwise). Zero denotes "no limit".

 Sync (F)
  Byte1('S')
      Identifies the message as a Sync command.
  Int32(4)
      Length of message contents in bytes, including self.
 

Author:

Antti Laisi

Constructor Summary

Constructors

Constructor and Description
ExtendedQueryEncoder()

Method Summary

Modifier and Type	Method and Description
java.lang.Class<ExtendedQuery>	getMessageType()
void	write(ExtendedQuery msg, java.nio.ByteBuffer buffer)

Methods inherited from class java.lang.Object

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

Constructor Detail

ExtendedQueryEncoder

public ExtendedQueryEncoder()

Method Detail

getMessageType

public java.lang.Class<ExtendedQuery> getMessageType()

Specified by:

getMessageType in interface Encoder<ExtendedQuery>

Returns:

Message class

write

public void write(ExtendedQuery msg,
                  java.nio.ByteBuffer buffer)

Specified by:

write in interface Encoder<ExtendedQuery>

Parameters:

msg - Protocol message

buffer - Target buffer