Known Direct Subclasses |
This class creates server sockets. It may be subclassed by other factories, which create particular types of server sockets. This provides a general framework for the addition of public socket-level functionality. It is the server side analogue of a socket factory, and similarly provides a way to capture a variety of policies related to the sockets being constructed.
Like socket factories, server Socket factory instances have methods used to create sockets. There is also an environment specific default server socket factory; frameworks will often use their own customized factory.
See Also
Protected Constructor Summary
ServerSocketFactory()
Creates a server socket factory.
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Public Method Summary
abstract ServerSocket |
createServerSocket(int port)
Returns a server socket bound to the specified port.
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ServerSocket |
createServerSocket()
Returns an unbound server socket.
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abstract ServerSocket |
createServerSocket(int port, int backlog, InetAddress ifAddress)
Returns a server socket bound to the specified port,
with a specified listen backlog and local IP.
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abstract ServerSocket |
createServerSocket(int port, int backlog)
Returns a server socket bound to the specified port, and uses the
specified connection backlog.
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static ServerSocketFactory |
getDefault()
Returns a copy of the environment's default socket factory.
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Inherited Method Summary
Protected Constructors
protected ServerSocketFactory ()
Creates a server socket factory.
Public Methods
public abstract ServerSocket createServerSocket (int port)
Returns a server socket bound to the specified port. The socket is configured with the socket options (such as accept timeout) given to this factory.
If there is a security manager, its checkListen
method is called with the port
argument as its
argument to ensure the operation is allowed. This could result
in a SecurityException.
Parameters
port | the port to listen to |
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Returns
- the
ServerSocket
Throws
IOException | for networking errors |
---|---|
SecurityException | if a security manager exists and its
checkListen method doesn't allow the operation. |
IllegalArgumentException | if the port parameter is outside the specified range of valid port values, which is between 0 and 65535, inclusive. |
public ServerSocket createServerSocket ()
Returns an unbound server socket. The socket is configured with the socket options (such as accept timeout) given to this factory.
Returns
- the unbound socket
Throws
IOException | if the socket cannot be created |
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public abstract ServerSocket createServerSocket (int port, int backlog, InetAddress ifAddress)
Returns a server socket bound to the specified port, with a specified listen backlog and local IP.
The ifAddress
argument can be used on a multi-homed
host for a ServerSocket
that will only accept connect
requests to one of its addresses. If ifAddress
is null,
it will accept connections on all local addresses. The socket is
configured with the socket options (such as accept timeout) given
to this factory.
The backlog
argument must be a positive
value greater than 0. If the value passed if equal or less
than 0, then the default value will be assumed.
If there is a security manager, its checkListen
method is called with the port
argument as its
argument to ensure the operation is allowed. This could result
in a SecurityException.
Parameters
port | the port to listen to |
---|---|
backlog | how many connections are queued |
ifAddress | the network interface address to use |
Returns
- the
ServerSocket
Throws
IOException | for networking errors |
---|---|
SecurityException | if a security manager exists and its
checkListen method doesn't allow the operation. |
IllegalArgumentException | if the port parameter is outside the specified range of valid port values, which is between 0 and 65535, inclusive. |
public abstract ServerSocket createServerSocket (int port, int backlog)
Returns a server socket bound to the specified port, and uses the specified connection backlog. The socket is configured with the socket options (such as accept timeout) given to this factory.
The backlog
argument must be a positive
value greater than 0. If the value passed if equal or less
than 0, then the default value will be assumed.
If there is a security manager, its checkListen
method is called with the port
argument as its
argument to ensure the operation is allowed. This could result
in a SecurityException.
Parameters
port | the port to listen to |
---|---|
backlog | how many connections are queued |
Returns
- the
ServerSocket
Throws
IOException | for networking errors |
---|---|
SecurityException | if a security manager exists and its
checkListen method doesn't allow the operation. |
IllegalArgumentException | if the port parameter is outside the specified range of valid port values, which is between 0 and 65535, inclusive. |
public static ServerSocketFactory getDefault ()
Returns a copy of the environment's default socket factory.
Returns
- the
ServerSocketFactory