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:
- 1.1
- See Also:
Registry
Method Summary
Modifier and Type | Method | Description |
---|---|---|
static Registry | createRegistry(int port) | Creates and exports a |
static Registry | createRegistry(int port,
RMIClientSocketFactory csf,
RMIServerSocketFactory ssf) | Creates and exports a |
static Registry | getRegistry() | Returns a reference to the remote object |
static Registry | getRegistry(int port) | Returns a reference to the remote object |
static Registry | getRegistry(String host) | Returns a reference to the remote object |
static Registry | getRegistry(String host,
int port) | Returns a reference to the remote object |
static Registry | getRegistry(String host,
int port,
RMIClientSocketFactory csf) | Returns a locally created remote reference to the remote object |
Methods declared in class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Method Detail
getRegistry
public static Registry getRegistry() throws RemoteException
Returns a reference to 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:
- 1.1
getRegistry
public static Registry getRegistry(int port) throws RemoteException
Returns a reference to 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:
- 1.1
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:
- 1.1
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:
- 1.1
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-sideSocket
factory used to make connections to the registry. Ifcsf
is null, then the default client-sideSocket
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
instance on the local host that accepts requests on the specified port
.
The Registry
instance is exported as if the static UnicastRemoteObject.exportObject
method is invoked, passing the Registry
instance and the specified port
as arguments, except that the Registry
instance is exported with a well-known object identifier, an ObjID
instance constructed with the value ObjID.REGISTRY_ID
.
- Parameters:
-
port
- the port on which the registry accepts requests - Returns:
- the registry
- Throws:
-
RemoteException
- if the registry could not be exported - Since:
- 1.1
createRegistry
public static Registry createRegistry(int port, RMIClientSocketFactory csf, RMIServerSocketFactory ssf) throws RemoteException
Creates and exports a Registry
instance on the local host that uses custom socket factories for communication with that instance. The registry that is created listens for incoming requests on the given port
using a ServerSocket
created from the supplied RMIServerSocketFactory
.
The Registry
instance is exported as if the static UnicastRemoteObject.exportObject
method is invoked, passing the Registry
instance, the specified port
, the specified RMIClientSocketFactory
, and the specified RMIServerSocketFactory
as arguments, except that the Registry
instance is exported with a well-known object identifier, an ObjID
instance constructed with the value ObjID.REGISTRY_ID
.
- Parameters:
-
port
- port on which the registry accepts requests -
csf
- client-sideSocket
factory used to make connections to the registry -
ssf
- server-sideServerSocket
factory used to accept connections to the registry - Returns:
- the registry
- Throws:
-
RemoteException
- if the registry could not be exported - Since:
- 1.2