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.
Modifier and Type | Method | Description |
---|---|---|
static Registry |
createRegistry |
Creates and exports a Registry instance on the local host that accepts requests on the specified port . |
static Registry |
createRegistry |
Creates and exports a Registry instance on the local host that uses custom socket factories for communication with that instance. |
static Registry |
getRegistry() |
Returns a reference to the remote object Registry for the local host on the default registry port of 1099. |
static Registry |
getRegistry |
Returns a reference to the remote object Registry for the local host on the specified port . |
static Registry |
getRegistry |
Returns a reference to the remote object Registry on the specified host on the default registry port of 1099. |
static Registry |
getRegistry |
Returns a reference to the remote object Registry on the specified host and port . |
static Registry |
getRegistry |
Returns a locally created remote reference to the remote object Registry on the specified host and port . |
public static Registry getRegistry() throws RemoteException
Registry
for the local host on the default registry port of 1099.RemoteException
- if the reference could not be createdpublic static Registry getRegistry(int port) throws RemoteException
Registry
for the local host on the specified port
.port
- port on which the registry accepts requestsRemoteException
- if the reference could not be createdpublic static Registry getRegistry(String host) throws RemoteException
Registry
on the specified host
on the default registry port of 1099. If host
is null
, the local host is used.host
- host for the remote registryRemoteException
- if the reference could not be createdpublic static Registry getRegistry(String host, int port) throws RemoteException
Registry
on the specified host
and port
. If host
is null
, the local host is used.host
- host for the remote registryport
- port on which the registry accepts requestsRemoteException
- if the reference could not be createdpublic static Registry getRegistry(String host, int port, RMIClientSocketFactory csf) throws RemoteException
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
.host
- host for the remote registryport
- port on which the registry accepts requestscsf
- 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.RemoteException
- if the reference could not be createdpublic static Registry createRegistry(int port) throws RemoteException
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
.
port
- the port on which the registry accepts requestsRemoteException
- if the registry could not be exportedpublic static Registry createRegistry(int port, RMIClientSocketFactory csf, RMIServerSocketFactory ssf) throws RemoteException
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
.
port
- port on which the registry accepts requestscsf
- client-side Socket
factory used to make connections to the registryssf
- server-side ServerSocket
factory used to accept connections to the registryRemoteException
- if the registry could not be exported
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https://docs.oracle.com/en/java/javase/21/docs/api/java.rmi/java/rmi/registry/LocateRegistry.html