Class java.rmi.server.RMISocketFactory
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Class java.rmi.server.RMISocketFactory
java.lang.Object
|
+----java.rmi.server.RMISocketFactory
public abstract class RMISocketFactory
extends Object
The RMISocketFactory is used by the RMI runtime in order to obtain
client and server sockets for RMI calls. The default implementation
of the socket factory performs a three-tiered approach to creating
client sockets. First, a direct socket connection to the remote VM
is attempted. If that fails (due to a firewall), the runtime uses
HTTP with the explicit port number of the server. If the firewall
does not allow this type of communication, then HTTP to a cgi-bin
script on the server is used to POST the RMI call.
An application may set the source of sockets for RMI. In this case,
the application is responsible for offering up sockets that will
penetrate a firewall.
RMISocketFactory()
createServerSocket(int)
Create a server socket on the specified port (port 0 represents
an anonymous port).
createSocket(String, int)
Create a client socket connected to the specified host and port.
getFailureHandler()
Returns the handler for socket creation failure.
getSocketFactory()
Returns the socket factory used by RMI.
setFailureHandler(RMIFailureHandler)
Set the failure handler to be called by the RMI runtime if
socket creation fails.
setSocketFactory(RMISocketFactory)
Set the socket factory from which RMI gets sockets.
RMISocketFactory
public RMISocketFactory()
createSocket
public abstract Socket createSocket(String host,
int port) throws IOException
Create a client socket connected to the specified host and port.
createServerSocket
public abstract ServerSocket createServerSocket(int port) throws IOException
Create a server socket on the specified port (port 0 represents
an anonymous port).
setSocketFactory
public static void setSocketFactory(RMISocketFactory fac) throws IOException
Set the socket factory from which RMI gets sockets. The RMI
socket factory can only be set once. Note: The RMISocketFactory
may only be set if the current security manager allows setting
a socket factory; if disallowed, a SecurityException will be
thrown.
getSocketFactory
public static RMISocketFactory getSocketFactory()
Returns the socket factory used by RMI.
setFailureHandler
public static void setFailureHandler(RMIFailureHandler fh)
Set the failure handler to be called by the RMI runtime if
socket creation fails. The default implementation of this
handler returns false (thus recreation of sockets is not
attempted by the runtime).
getFailureHandler
public static RMIFailureHandler getFailureHandler()
Returns the handler for socket creation failure.
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