edu.cmu.mafia.NamingService
Class EJBFactory

java.lang.Object
  edu.cmu.mafia.NamingService.EJBFactory

public class EJBFactory
extends java.lang.Object

This class is a utility to get a EJB object from JNDI.

Field Summary

protected static java.lang.String	CURRENT_SERVER
protected static java.lang.String	DEFAULT_SERVER
protected static int	TIMEOUT

Constructor Summary

EJBFactory()

Method Summary

protected static java.lang.Object	failover(java.lang.String machine) returns next available refernce.
static java.lang.Object	getEJBHome(java.lang.String name) The getEJBHome() takes in the name of an EJB object and returns its home interface
static javax.naming.InitialContext	getInitialContext() The getInitialContext() method returns an EJB InitialContext which points to the current primary server.

Methods inherited from class java.lang.Object

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

Field Detail

TIMEOUT

protected static final int TIMEOUT

See Also:

Constant Field Values

DEFAULT_SERVER

protected static final java.lang.String DEFAULT_SERVER

See Also:

Constant Field Values

CURRENT_SERVER

protected static java.lang.String CURRENT_SERVER

Constructor Detail

EJBFactory

public EJBFactory()

Method Detail

getInitialContext

public static javax.naming.InitialContext getInitialContext()
                                                     throws javax.naming.NamingException

The getInitialContext() method returns an EJB InitialContext which points to the current primary server. This method accomplishes this by querying the replication manager, which manages the list of servers in the replica group.

Returns:

the InitialContext which points to the current primary server

Throws:

javax.naming.NamingException

getEJBHome

public static java.lang.Object getEJBHome(java.lang.String name)

The getEJBHome() takes in the name of an EJB object and returns its home interface

Parameters:

name - A string cotaining the name of the EJB object

Returns:

an EJBHome object given its name.

failover

protected static java.lang.Object failover(java.lang.String machine)

returns next available refernce.