org.space4j.implementation
Class MasterSpace4J

java.lang.Object
  org.space4j.implementation.SimpleSpace4J
      org.space4j.implementation.MasterSpace4J

All Implemented Interfaces:

java.lang.Runnable, Space4J

public class MasterSpace4J
extends SimpleSpace4J
implements java.lang.Runnable

The master space4j in the center of the replication ring. It will execute all commands and send them to the slaves, so they can execute them too.

Field Summary

Fields inherited from class org.space4j.implementation.SimpleSpace4J

dirname, im, logger, snapTime, space, thread

Constructor Summary

MasterSpace4J(java.lang.String dirname)
Initializes the MasterSpace4J.

MasterSpace4J(java.lang.String dirname, int master_port, int slave_port)

MasterSpace4J(java.lang.String dirname, long snapTime)

MasterSpace4J(java.lang.String dirname, long snapTime, int master_port, int slave_port)
Initializes the MasterSpace4J.

Method Summary

int	exec(Command cmd, boolean log)
void	run()
void	start() Start listening for slaves.

Methods inherited from class org.space4j.implementation.SimpleSpace4J

exec, executeSnapshot, getDirName, getSpace, readSnapshot, reapply, reapplyCommandsFromLog

Methods inherited from class java.lang.Object

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

Constructor Detail

MasterSpace4J

public MasterSpace4J(java.lang.String dirname)
              throws LoggerException,
                     CommandException

Initializes the MasterSpace4J.

Parameters:

dirname - The dir where the space is stored.

Throws:

LoggerException

CommandException

See Also:

SimpleSpace4J

MasterSpace4J

public MasterSpace4J(java.lang.String dirname,
                     long snapTime)
              throws LoggerException,
                     CommandException

Throws:

LoggerException

CommandException

MasterSpace4J

public MasterSpace4J(java.lang.String dirname,
                     long snapTime,
                     int master_port,
                     int slave_port)
              throws LoggerException,
                     CommandException

Initializes the MasterSpace4J.

Parameters:

dirname - The dir where the space is stored.

master_port - The port where the master will be listening.

slave_port - The port where the slaves will be listening.

Throws:

LoggerException

CommandException

See Also:

SimpleSpace4J

MasterSpace4J

public MasterSpace4J(java.lang.String dirname,
                     int master_port,
                     int slave_port)
              throws LoggerException,
                     CommandException

Throws:

LoggerException

CommandException

Method Detail

start

public void start()
           throws java.net.UnknownHostException,
                  java.io.IOException,
                  java.lang.ClassNotFoundException

Start listening for slaves.

Specified by:

start in interface Space4J

Overrides:

start in class SimpleSpace4J

Throws:

java.net.UnknownHostException

java.io.IOException

java.lang.ClassNotFoundException

exec

public int exec(Command cmd,
                boolean log)
         throws CommandException,
                LoggerException

Overrides:

exec in class SimpleSpace4J

Throws:

CommandException

LoggerException

run

public void run()

Specified by:

run in interface java.lang.Runnable

Overrides:

run in class SimpleSpace4J