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Java in a Nutshell

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The java.net Package
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28.18 java.net.SocketImpl (JDK 1.0)

This abstract class defines the methods necessary to implement communication through sockets. Different subclasses of this class may provide different implementations suitable in different environments (such as behind firewalls). These socket implementations are used by the Socket and ServerSocket classes.

Normal applications never need to use or subclass this class.

public abstract class SocketImpl extends Object {
    // Default Constructor: public SocketImpl()
    // Protected Instance Variables
            protected InetAddress address;
            protected FileDescriptor fd;
            protected int localport;
            protected int port;
    // Public Instance Methods
            public String toString();  // Overrides Object
    // Protected Instance Methods
            protected abstract void accept(SocketImpl s) throws IOException;
            protected abstract int available() throws IOException;
            protected abstract void bind(InetAddress host, int port) throws IOException;
            protected abstract void close() throws IOException;
            protected abstract void connect(String host, int port) throws IOException;
            protected abstract void connect(InetAddress address, int port) throws IOException;
            protected abstract void create(boolean stream) throws IOException;
            protected FileDescriptor getFileDescriptor();
            protected InetAddress getInetAddress();
            protected abstract InputStream getInputStream() throws IOException;
            protected int getLocalPort();
            protected abstract OutputStream getOutputStream() throws IOException;
            protected int getPort();
            protected abstract void listen(int backlog) throws IOException;
}

Passed To:

Socket(), SocketImpl.accept()

Returned By:

SocketImplFactory.createSocketImpl()


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