Class ServerSocketFactory
- java.lang.Object
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- javax.net.ServerSocketFactory
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- Direct Known Subclasses:
- SSLServerSocketFactory
public abstract class ServerSocketFactory extends Object
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.
- Since:
- 1.4
- See Also:
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SocketFactory
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Constructor Summary
Constructors Modifier Constructor and Description protectedServerSocketFactory()Creates a server socket factory.
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Method Summary
All Methods Static Methods Instance Methods Abstract Methods Concrete Methods Modifier and Type Method and Description ServerSocketcreateServerSocket()Returns an unbound server socket.abstract ServerSocketcreateServerSocket(int port)Returns a server socket bound to the specified port.abstract ServerSocketcreateServerSocket(int port, int backlog)Returns a server socket bound to the specified port, and uses the specified connection backlog.abstract ServerSocketcreateServerSocket(int port, int backlog, InetAddress ifAddress)Returns a server socket bound to the specified port, with a specified listen backlog and local IP.static ServerSocketFactorygetDefault()Returns a copy of the environment's default socket factory.
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Constructor Detail
ServerSocketFactory
protected ServerSocketFactory()
Creates a server socket factory.
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Method Detail
getDefault
public static ServerSocketFactory getDefault()
Returns a copy of the environment's default socket factory.- Returns:
-
the
ServerSocketFactory
createServerSocket
public ServerSocket createServerSocket() throws IOException
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:
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IOException- if the socket cannot be created - See Also:
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ServerSocket.bind(java.net.SocketAddress),ServerSocket.bind(java.net.SocketAddress, int),ServerSocket.ServerSocket()
createServerSocket
public abstract ServerSocket createServerSocket(int port) throws IOException
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
checkListenmethod is called with theportargument as its argument to ensure the operation is allowed. This could result in a SecurityException.- Parameters:
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port- the port to listen to - Returns:
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the
ServerSocket - Throws:
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IOException- for networking errors -
SecurityException- if a security manager exists and itscheckListenmethod 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. - See Also:
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SecurityManager.checkListen(int),ServerSocket.ServerSocket(int)
createServerSocket
public abstract ServerSocket createServerSocket(int port, int backlog) throws IOException
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
backlogargument 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
checkListenmethod is called with theportargument as its argument to ensure the operation is allowed. This could result in a SecurityException.- Parameters:
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port- the port to listen to -
backlog- how many connections are queued - Returns:
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the
ServerSocket - Throws:
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IOException- for networking errors -
SecurityException- if a security manager exists and itscheckListenmethod 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. - See Also:
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SecurityManager.checkListen(int),ServerSocket.ServerSocket(int, int)
createServerSocket
public abstract ServerSocket createServerSocket(int port, int backlog, InetAddress ifAddress) throws IOException
Returns a server socket bound to the specified port, with a specified listen backlog and local IP.The
ifAddressargument can be used on a multi-homed host for aServerSocketthat will only accept connect requests to one of its addresses. IfifAddressis 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
backlogargument 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
checkListenmethod is called with theportargument as its argument to ensure the operation is allowed. This could result in a SecurityException.- Parameters:
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port- the port to listen to -
backlog- how many connections are queued -
ifAddress- the network interface address to use - Returns:
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the
ServerSocket - Throws:
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IOException- for networking errors -
SecurityException- if a security manager exists and itscheckListenmethod 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. - See Also:
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SecurityManager.checkListen(int),ServerSocket.ServerSocket(int, int, java.net.InetAddress)
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