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package com.sun.appserv.management.client;
import java.io.IOException;
import javax.management.MBeanServerConnection;
import javax.management.remote.JMXConnector;
/**
A source of an MBeanServerConnection.
@see AppserverConnectionSource
@see com.sun.appserv.management.util.jmx.MBeanServerConnectionConnectionSource
@see com.sun.appserv.management.util.jmx.MBeanServerConnectionSource
*/
public interface ConnectionSource
{
/**
Return a valid MBeanServerConnection, making a new connection if necessary, or
returning an existing one if still valid. Some implementations may choose
to not allow creation of a new connection (when 'forceNew' is specified).
<p>
Should not be called frequently, as the check for validity will make a remote
call.
<p>
An implementation may choose to ignore the 'forceNew' parameter and always
return the same connection.
@param forceNew creates a new connection instead of reusing an existing one
@return the connection, or null if a new one is not possible
*/
public MBeanServerConnection getMBeanServerConnection( boolean forceNew )
throws IOException;
/**
@return existing connection, valid or not, may be null
*/
public MBeanServerConnection getExistingMBeanServerConnection();
/**
@return a JMXConnector or null if not appropriate
*/
public JMXConnector getJMXConnector( boolean forceNew )
throws IOException;
}
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