Java™ Platform
Standard Ed. 6

javax.net
Class SocketFactory

java.lang.Object
  extended by javax.net.SocketFactory
Direct Known Subclasses:
SSLSocketFactory

public abstract class SocketFactory
extends Object

This class creates sockets. It may be subclassed by other factories, which create particular subclasses of sockets and thus provide a general framework for the addition of public socket-level functionality.

Socket factories are a simple way to capture a variety of policies related to the sockets being constructed, producing such sockets in a way which does not require special configuration of the code which asks for the sockets:

Factory classes are specified by environment-specific configuration mechanisms. For example, the getDefault method could return a factory that was appropriate for a particular user or applet, and a framework could use a factory customized to its own purposes.

Since:
1.4
See Also:
ServerSocketFactory

Constructor Summary
protected SocketFactory()
          Creates a SocketFactory.
 
Method Summary
 Socket createSocket()
          Creates an unconnected socket.
abstract  Socket createSocket(InetAddress host, int port)
          Creates a socket and connects it to the specified port number at the specified address.
abstract  Socket createSocket(InetAddress address, int port, InetAddress localAddress, int localPort)
          Creates a socket and connect it to the specified remote address on the specified remote port.
abstract  Socket createSocket(String host, int port)
          Creates a socket and connects it to the specified remote host at the specified remote port.
abstract  Socket createSocket(String host, int port, InetAddress localHost, int localPort)
          Creates a socket and connects it to the specified remote host on the specified remote port.
static SocketFactory getDefault()
          Returns a copy of the environment's default socket factory.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

SocketFactory

protected SocketFactory()
Creates a SocketFactory.

Method Detail

getDefault

public static SocketFactory getDefault()
Returns a copy of the environment's default socket factory.

Returns:
the default SocketFactory

createSocket

public Socket createSocket()
                    throws IOException
Creates an unconnected socket.

Returns:
the unconnected socket
Throws:
IOException - if the socket cannot be created
See Also:
Socket.connect(java.net.SocketAddress), Socket.connect(java.net.SocketAddress, int), Socket.Socket()

createSocket

public abstract Socket createSocket(String host,
                                    int port)
                             throws IOException,
                                    UnknownHostException
Creates a socket and connects it to the specified remote host at the specified remote port. This socket is configured using the socket options established for this factory.

Parameters:
host - the server host
port - the server port
Returns:
the Socket
Throws:
IOException - if an I/O error occurs when creating the socket
UnknownHostException - if the host is not known
See Also:
Socket.Socket(String, int)

createSocket

public abstract Socket createSocket(String host,
                                    int port,
                                    InetAddress localHost,
                                    int localPort)
                             throws IOException,
                                    UnknownHostException
Creates a socket and connects it to the specified remote host on the specified remote port. The socket will also be bound to the local address and port supplied. This socket is configured using the socket options established for this factory.

Parameters:
host - the server host
port - the server port
localHost - the local address the socket is bound to
localPort - the local port the socket is bound to
Returns:
the Socket
Throws:
IOException - if an I/O error occurs when creating the socket
UnknownHostException - if the host is not known
See Also:
Socket.Socket(String, int, java.net.InetAddress, int)

createSocket

public abstract Socket createSocket(InetAddress host,
                                    int port)
                             throws IOException
Creates a socket and connects it to the specified port number at the specified address. This socket is configured using the socket options established for this factory.

Parameters:
host - the server host
port - the server port
Returns:
the Socket
Throws:
IOException - if an I/O error occurs when creating the socket
See Also:
Socket.Socket(java.net.InetAddress, int)

createSocket

public abstract Socket createSocket(InetAddress address,
                                    int port,
                                    InetAddress localAddress,
                                    int localPort)
                             throws IOException
Creates a socket and connect it to the specified remote address on the specified remote port. The socket will also be bound to the local address and port suplied. The socket is configured using the socket options established for this factory.

Parameters:
address - the server network address
port - the server port
localAddress - the client network address
localPort - the client port
Returns:
the Socket
Throws:
IOException - if an I/O error occurs when creating the socket
See Also:
Socket.Socket(java.net.InetAddress, int, java.net.InetAddress, int)

Java™ Platform
Standard Ed. 6

Submit a bug or feature
For further API reference and developer documentation, see Java SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

Copyright © 1993, 2011, Oracle and/or its affiliates. All rights reserved.

Scripting on this page tracks web page traffic, but does not change the content in any way.