java.rmi.registry
Class LocateRegistry

java.lang.Object
  java.rmi.registry.LocateRegistry

public final class LocateRegistry

extends Object

LocateRegistry is used to obtain a reference to a bootstrap remote object registry on a particular host (including the local host), or to create a remote object registry that accepts calls on a specific port.

Note that a getRegistry call does not actually make a connection to the remote host. It simply creates a local reference to the remote registry and will succeed even if no registry is running on the remote host. Therefore, a subsequent method invocation to a remote registry returned as a result of this method may fail.

Since:

JDK1.1

Author:

Ann Wollrath, Peter Jones

See Also:

Registry

Constructor Summary

private

LocateRegistry() Private constructor to disable public construction.

Method Summary

static Registry	createRegistry(int port) Creates and exports a Registry on the local host that accepts requests on the specified port.
static Registry	createRegistry(int port, RMIClientSocketFactory csf, RMIServerSocketFactory ssf) Creates and exports a Registry on the local host that uses custom socket factories for communication with that registry.
static Registry	getRegistry() Returns a reference to the the remote object Registry for the local host on the default registry port of 1099.
static Registry	getRegistry(int port) Returns a reference to the the remote object Registry for the local host on the specified port.
static Registry	getRegistry(String host) Returns a reference to the remote object Registry on the specified host on the default registry port of 1099.
static Registry	getRegistry(String host, int port) Returns a reference to the remote object Registry on the specified host and port.
static Registry	getRegistry(String host, int port, RMIClientSocketFactory csf) Returns a locally created remote reference to the remote object Registry on the specified host and port.

Methods inherited from class java.lang.Object

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

Constructor Detail

LocateRegistry

private LocateRegistry()

Private constructor to disable public construction.

Method Detail

getRegistry

public static Registry getRegistry()
                            throws RemoteException

Returns a reference to the the remote object Registry for the local host on the default registry port of 1099.

Returns:

reference (a stub) to the remote object registry

Throws:

RemoteException - if the reference could not be created

Since:

JDK1.1

getRegistry

public static Registry getRegistry(int port)
                            throws RemoteException

Returns a reference to the the remote object Registry for the local host on the specified port.

Parameters:

port - port on which the registry accepts requests

Returns:

reference (a stub) to the remote object registry

Throws:

RemoteException - if the reference could not be created

Since:

JDK1.1

getRegistry

public static Registry getRegistry(String host)
                            throws RemoteException

Returns a reference to the remote object Registry on the specified host on the default registry port of 1099. If host is null, the local host is used.

Parameters:

host - host for the remote registry

Returns:

reference (a stub) to the remote object registry

Throws:

RemoteException - if the reference could not be created

Since:

JDK1.1

getRegistry

public static Registry getRegistry(String host,
                                   int port)
                            throws RemoteException

Returns a reference to the remote object Registry on the specified host and port. If host is null, the local host is used.

Parameters:

host - host for the remote registry

port - port on which the registry accepts requests

Returns:

reference (a stub) to the remote object registry

Throws:

RemoteException - if the reference could not be created

Since:

JDK1.1

getRegistry

public static Registry getRegistry(String host,
                                   int port,
                                   RMIClientSocketFactory csf)
                            throws RemoteException

Returns a locally created remote reference to the remote object Registry on the specified host and port. Communication with this remote registry will use the supplied RMIClientSocketFactory csf to create Socket connections to the registry on the remote host and port.

Parameters:

host - host for the remote registry

port - port on which the registry accepts requests

csf - client-side Socket factory used to make connections to the registry. If csf is null, then the default client-side Socket factory will be used in the registry stub.

Returns:

reference (a stub) to the remote registry

Throws:

RemoteException - if the reference could not be created

Since:

1.2

createRegistry

public static Registry createRegistry(int port)
                               throws RemoteException

Creates and exports a Registry on the local host that accepts requests on the specified port.

Parameters:

port - the port on which the registry accepts requests

Returns:

the registry

Throws:

RemoteException - if the registry could not be exported

Since:

JDK1.1

createRegistry

public static Registry createRegistry(int port,
                                      RMIClientSocketFactory csf,
                                      RMIServerSocketFactory ssf)
                               throws RemoteException

Creates and exports a Registry on the local host that uses custom socket factories for communication with that registry. The registry that is created listens for incoming requests on the given port using a ServerSocket created from the supplied RMIServerSocketFactory. A client that receives a reference to this registry will use a Socket created from the supplied RMIClientSocketFactory.

Parameters:

port - port on which the registry accepts requests

csf - client-side Socket factory used to make connections to the registry

ssf - server-side ServerSocket factory used to accept connections to the registry

Returns:

the registry

Throws:

RemoteException - if the registry could not be exported

Since:

1.2