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The source code

/*
 * Copyright 2001-2004 The Apache Software Foundation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.commons.net;
import java.net.DatagramSocket;
import java.net.InetAddress;
import java.net.SocketException;

/***
 * The DatagramSocketFactory interface provides a means for the
 * programmer to control the creation of datagram sockets and
 * provide his own DatagramSocket implementations for use by all
 * classes derived from
 * 
 * DatagramSocketClient .
 * This allows you to provide your own DatagramSocket implementations and
 * to perform security checks or browser capability requests before
 * creating a DatagramSocket.
 * 

*

* @author Daniel F. Savarese ***/ public interface DatagramSocketFactory { /*** * Creates a DatagramSocket on the local host at the first available port. *

* @exception SocketException If the socket could not be created. ***/ public DatagramSocket createDatagramSocket() throws SocketException; /*** * Creates a DatagramSocket on the local host at a specified port. *

* @param port The port to use for the socket. * @exception SocketException If the socket could not be created. ***/ public DatagramSocket createDatagramSocket(int port) throws SocketException; /*** * Creates a DatagramSocket at the specified address on the local host * at a specified port. *

* @param port The port to use for the socket. * @param laddr The local address to use. * @exception SocketException If the socket could not be created. ***/ public DatagramSocket createDatagramSocket(int port, InetAddress laddr) throws SocketException; }

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