Commit 603f86d7 by Michael Koch Committed by Michael Koch

DatagramPacket.java, [...]: re-indented documentation.

2002-09-02  Michael Koch  <konqueror@gmx.de>

	* java/net/DatagramPacket.java, java/net/MulticsstSocket.java:
	re-indented documentation.

From-SVN: r56739
parent e53fbf8a
2002-09-02 Michael Koch <konqueror@gmx.de>
* java/net/DatagramPacket.java, java/net/MulticsstSocket.java:
re-indented documentation.
2002-08-30 Jesse Rosenstock <jmr@ugcs.caltech.edu> 2002-08-30 Jesse Rosenstock <jmr@ugcs.caltech.edu>
* java/util/Calendar.java (getTimeInMillis, getTimeInMillis): Now * java/util/Calendar.java (getTimeInMillis, getTimeInMillis): Now
......
...@@ -44,67 +44,66 @@ package java.net; ...@@ -44,67 +44,66 @@ package java.net;
*/ */
/** /**
* This class models a packet of data that is to be sent across the network * This class models a packet of data that is to be sent across the network
* using a connectionless protocol such as UDP. It contains the data * using a connectionless protocol such as UDP. It contains the data
* to be send, as well as the destination address and port. Note that * to be send, as well as the destination address and port. Note that
* datagram packets can arrive in any order and are not guaranteed to be * datagram packets can arrive in any order and are not guaranteed to be
* delivered at all. * delivered at all.
* <p> * <p>
* This class can also be used for receiving data from the network. * This class can also be used for receiving data from the network.
* <p> * <p>
* Note that for all method below where the buffer length passed by the * Note that for all method below where the buffer length passed by the
* caller cannot exceed the actually length of the byte array passed as * caller cannot exceed the actually length of the byte array passed as
* the buffer, if this condition is not true, then the method silently * the buffer, if this condition is not true, then the method silently
* reduces the length value to maximum allowable value. * reduces the length value to maximum allowable value.
* *
* Written using on-line Java Platform 1.2 API Specification, as well * Written using on-line Java Platform 1.2 API Specification, as well
* as "The Java Class Libraries", 2nd edition (Addison-Wesley, 1998). * as "The Java Class Libraries", 2nd edition (Addison-Wesley, 1998).
* Status: Believed complete and correct. * Status: Believed complete and correct.
* *
* @author Warren Levy <warrenl@cygnus.com> * @author Warren Levy <warrenl@cygnus.com>
* @author Aarom M. Renn (arenn@urbanophile.com) (Documentation comments) * @author Aarom M. Renn (arenn@urbanophile.com) (Documentation comments)
* @date April 28, 1999. * @date April 28, 1999.
*/ */
public final class DatagramPacket public final class DatagramPacket
{ {
/** /**
* The data buffer to send * The data buffer to send
*/ */
private byte[] buffer; private byte[] buffer;
/** /**
* This is the offset into the buffer to start sending from or receiving to. * This is the offset into the buffer to start sending from or receiving to.
*/ */
private int offset; private int offset;
/** /**
* The length of the data buffer to send * The length of the data buffer to send
*/ */
private int length; private int length;
/** /**
* The address to which the packet should be sent or from which it * The address to which the packet should be sent or from which it
* was received * was received
*/ */
private InetAddress address; private InetAddress address;
/** /**
* The port to which the packet should be sent or from which it was * The port to which the packet should be sent or from which it was
* was received. * was received.
*/ */
private int port; private int port;
/** /**
* This method initializes a new instance of <code>DatagramPacket</code> * This method initializes a new instance of <code>DatagramPacket</code>
* which has the specified buffer, offset, and length. * which has the specified buffer, offset, and length.
* *
* @param buf The buffer for holding the incoming datagram. * @param buf The buffer for holding the incoming datagram.
* @param offset The offset into the buffer to start writing. * @param offset The offset into the buffer to start writing.
* @param length The maximum number of bytes to read. * @param length The maximum number of bytes to read.
* *
* @since 1.2 * @since 1.2
*/ */
public DatagramPacket(byte[] buf, int offset, int length) public DatagramPacket(byte[] buf, int offset, int length)
{ {
if (buf == null) if (buf == null)
...@@ -124,30 +123,30 @@ public final class DatagramPacket ...@@ -124,30 +123,30 @@ public final class DatagramPacket
this.port = -1; this.port = -1;
} }
/** /**
* Initializes a new instance of <code>DatagramPacket</code> for * Initializes a new instance of <code>DatagramPacket</code> for
* receiving packets from the network. * receiving packets from the network.
* *
* @param buf A buffer for storing the returned packet data * @param buf A buffer for storing the returned packet data
* @param length The length of the buffer (must be <= buf.length) * @param length The length of the buffer (must be <= buf.length)
*/ */
public DatagramPacket(byte[] buf, int length) public DatagramPacket(byte[] buf, int length)
{ {
this(buf, 0, length); this(buf, 0, length);
} }
/** /**
* Initializes a new instance of <code>DatagramPacket</code> for * Initializes a new instance of <code>DatagramPacket</code> for
* transmitting packets across the network. * transmitting packets across the network.
* *
* @param buf A buffer containing the data to send * @param buf A buffer containing the data to send
* @param offset The offset into the buffer to start writing from. * @param offset The offset into the buffer to start writing from.
* @param len The length of the buffer (must be <= buf.length) * @param len The length of the buffer (must be <= buf.length)
* @param addr The address to send to * @param addr The address to send to
* @param port The port to send to * @param port The port to send to
* *
* @since 1.2 * @since 1.2
*/ */
public DatagramPacket(byte[] buf, int offset, int length, public DatagramPacket(byte[] buf, int offset, int length,
InetAddress address, int port) InetAddress address, int port)
{ {
...@@ -172,15 +171,15 @@ public final class DatagramPacket ...@@ -172,15 +171,15 @@ public final class DatagramPacket
this.port = port; this.port = port;
} }
/** /**
* Initializes a new instance of <code>DatagramPacket</code> for * Initializes a new instance of <code>DatagramPacket</code> for
* transmitting packets across the network. * transmitting packets across the network.
* *
* @param buf A buffer containing the data to send * @param buf A buffer containing the data to send
* @param length The length of the buffer (must be <= buf.length) * @param length The length of the buffer (must be <= buf.length)
* @param address The address to send to * @param address The address to send to
* @param port The port to send to * @param port The port to send to
*/ */
public DatagramPacket(byte[] buf, int length, InetAddress address, int port) public DatagramPacket(byte[] buf, int length, InetAddress address, int port)
{ {
this(buf, 0, length, address, port); this(buf, 0, length, address, port);
...@@ -225,74 +224,74 @@ public final class DatagramPacket ...@@ -225,74 +224,74 @@ public final class DatagramPacket
((InetSocketAddress)address).getPort()); ((InetSocketAddress)address).getPort());
} }
/** /**
* Returns the address that this packet is being sent to or, if it was used * Returns the address that this packet is being sent to or, if it was used
* to receive a packet, the address that is was received from. If the * to receive a packet, the address that is was received from. If the
* constructor that doesn not take an address was used to create this object * constructor that doesn not take an address was used to create this object
* and no packet was actually read into this object, then this method * and no packet was actually read into this object, then this method
* returns <code>null</code>. * returns <code>null</code>.
* *
* @return The address for this packet. * @return The address for this packet.
*/ */
public synchronized InetAddress getAddress() public synchronized InetAddress getAddress()
{ {
return address; return address;
} }
/** /**
* Returns the port number this packet is being sent to or, if it was used * Returns the port number this packet is being sent to or, if it was used
* to receive a packet, the port that it was received from. If the * to receive a packet, the port that it was received from. If the
* constructor that doesn not take an address was used to create this object * constructor that doesn not take an address was used to create this object
* and no packet was actually read into this object, then this method * and no packet was actually read into this object, then this method
* will return 0. * will return 0.
* *
* @return The port number for this packet * @return The port number for this packet
*/ */
public synchronized int getPort() public synchronized int getPort()
{ {
return port; return port;
} }
/** /**
* Returns the data buffer for this packet * Returns the data buffer for this packet
* *
* @return This packet's data buffer * @return This packet's data buffer
*/ */
public synchronized byte[] getData() public synchronized byte[] getData()
{ {
return buffer; return buffer;
} }
/** /**
* This method returns the current offset value into the data buffer * This method returns the current offset value into the data buffer
* where data will be sent from. * where data will be sent from.
* *
* @return The buffer offset. * @return The buffer offset.
* *
* @since 1.2 * @since 1.2
*/ */
public synchronized int getOffset() public synchronized int getOffset()
{ {
return offset; return offset;
} }
/** /**
* Returns the length of the data in the buffer * Returns the length of the data in the buffer
* *
* @return The length of the data * @return The length of the data
*/ */
public synchronized int getLength() public synchronized int getLength()
{ {
return length; return length;
} }
/** /**
* This sets the address to which the data packet will be transmitted. * This sets the address to which the data packet will be transmitted.
* *
* @param addr The destination address * @param addr The destination address
* *
* @since 1.1 * @since 1.1
*/ */
public synchronized void setAddress(InetAddress iaddr) public synchronized void setAddress(InetAddress iaddr)
{ {
if (iaddr == null) if (iaddr == null)
...@@ -301,13 +300,13 @@ public final class DatagramPacket ...@@ -301,13 +300,13 @@ public final class DatagramPacket
address = iaddr; address = iaddr;
} }
/** /**
* This sets the port to which the data packet will be transmitted. * This sets the port to which the data packet will be transmitted.
* *
* @param port The destination port * @param port The destination port
* *
* @since 1.1 * @since 1.1
*/ */
public synchronized void setPort(int iport) public synchronized void setPort(int iport)
{ {
if (iport < 0 || iport > 65535) if (iport < 0 || iport > 65535)
...@@ -348,13 +347,13 @@ public final class DatagramPacket ...@@ -348,13 +347,13 @@ public final class DatagramPacket
return new InetSocketAddress (address, port); return new InetSocketAddress (address, port);
} }
/** /**
* Sets the data buffer for this packet. * Sets the data buffer for this packet.
* *
* @param buf The new buffer for this packet * @param buf The new buffer for this packet
* *
* @since 1.1 * @since 1.1
*/ */
public synchronized void setData(byte[] buf) public synchronized void setData(byte[] buf)
{ {
// This form of setData requires setLength to be called separately // This form of setData requires setLength to be called separately
...@@ -365,15 +364,15 @@ public final class DatagramPacket ...@@ -365,15 +364,15 @@ public final class DatagramPacket
buffer = buf; buffer = buf;
} }
/** /**
* This method sets the data buffer for the packet. * This method sets the data buffer for the packet.
* *
* @param buf The byte array containing the data for this packet. * @param buf The byte array containing the data for this packet.
* @param offset The offset into the buffer to start reading data from. * @param offset The offset into the buffer to start reading data from.
* @param length The number of bytes of data in the buffer. * @param length The number of bytes of data in the buffer.
* *
* @since 1.2 * @since 1.2
*/ */
public synchronized void setData(byte[] buf, int offset, int length) public synchronized void setData(byte[] buf, int offset, int length)
{ {
// This form of setData must be used if offset is to be changed. // This form of setData must be used if offset is to be changed.
...@@ -393,13 +392,13 @@ public final class DatagramPacket ...@@ -393,13 +392,13 @@ public final class DatagramPacket
this.length = length; this.length = length;
} }
/** /**
* Sets the length of the data in the buffer. * Sets the length of the data in the buffer.
* *
* @param length The new length. (Where len <= buf.length) * @param length The new length. (Where len <= buf.length)
* *
* @since 1.1 * @since 1.1
*/ */
public synchronized void setLength(int length) public synchronized void setLength(int length)
{ {
if (length < 0) if (length < 0)
......
...@@ -39,82 +39,82 @@ package java.net; ...@@ -39,82 +39,82 @@ package java.net;
import java.io.IOException; import java.io.IOException;
/* /**
* Written using on-line Java Platform 1.2 API Specification, as well * Written using on-line Java Platform 1.2 API Specification, as well
* as "The Java Class Libraries", 2nd edition (Addison-Wesley, 1998). * as "The Java Class Libraries", 2nd edition (Addison-Wesley, 1998).
* Status: Believed complete and correct. * Status: Believed complete and correct.
*/ */
/** /**
* This class models a multicast UDP socket. A multicast address is a * This class models a multicast UDP socket. A multicast address is a
* class D internet address (one whose most significant bits are 1110). * class D internet address (one whose most significant bits are 1110).
* A multicast group consists of a multicast address and a well known * A multicast group consists of a multicast address and a well known
* port number. All members of the group listening on that address and * port number. All members of the group listening on that address and
* port will receive all the broadcasts to the group. * port will receive all the broadcasts to the group.
* <p> * <p>
* Please note that applets are not allowed to use multicast sockets * Please note that applets are not allowed to use multicast sockets
* *
* Written using on-line Java Platform 1.2 API Specification, as well * Written using on-line Java Platform 1.2 API Specification, as well
* as "The Java Class Libraries", 2nd edition (Addison-Wesley, 1998). * as "The Java Class Libraries", 2nd edition (Addison-Wesley, 1998).
* Status: Believed complete and correct. * Status: Believed complete and correct.
* *
* @author Warren Levy <warrenl@cygnus.com> * @author Warren Levy <warrenl@cygnus.com>
* @author Aaron M. Renn (arenn@urbanophile.com) (Documentation comments) * @author Aaron M. Renn (arenn@urbanophile.com) (Documentation comments)
* @since 1.1 * @since 1.1
* @date May 18, 1999. * @date May 18, 1999.
*/ */
public class MulticastSocket extends DatagramSocket public class MulticastSocket extends DatagramSocket
{ {
// FIXME: the local addr bound to the multicast socket can be reused; // FIXME: the local addr bound to the multicast socket can be reused;
// unlike unicast sockets. It binds to any available network interface. // unlike unicast sockets. It binds to any available network interface.
// See p.1159 JCL book. // See p.1159 JCL book.
/** /**
* Create a MulticastSocket that this not bound to any address * Create a MulticastSocket that this not bound to any address
* *
* @exception IOException If an error occurs * @exception IOException If an error occurs
*/ */
public MulticastSocket() throws IOException public MulticastSocket() throws IOException
{ {
super(0, null); super(0, null);
} }
/** /**
* Create a multicast socket bound to the specified port * Create a multicast socket bound to the specified port
* *
* @param The port to bind to * @param port The port to bind to
* *
* @exception IOException If an error occurs * @exception IOException If an error occurs
*/ */
public MulticastSocket(int port) throws IOException public MulticastSocket(int port) throws IOException
{ {
super(port, null); super(port, null);
} }
/** /**
* Returns the interface being used for multicast packets * Returns the interface being used for multicast packets
* *
* @return The multicast interface * @return The multicast interface
* *
* @exception SocketException If an error occurs * @exception SocketException If an error occurs
*/ */
public InetAddress getInterface() throws SocketException public InetAddress getInterface() throws SocketException
{ {
// FIXME: Is it possible that an InetAddress wasn't returned from getOption? // FIXME: Is it possible that an InetAddress wasn't returned from getOption?
return (InetAddress) impl.getOption(SocketOptions.IP_MULTICAST_IF); return (InetAddress) impl.getOption(SocketOptions.IP_MULTICAST_IF);
} }
/** /**
* Returns the current value of the "Time to Live" option. This is the * Returns the current value of the "Time to Live" option. This is the
* number of hops a packet can make before it "expires". This method id * number of hops a packet can make before it "expires". This method id
* deprecated. Use <code>getTimeToLive</code> instead. * deprecated. Use <code>getTimeToLive</code> instead.
* *
* @return The TTL value * @return The TTL value
* *
* @exception IOException If an error occurs * @exception IOException If an error occurs
* *
* @deprecated Replaced by getTimeToLive() in Java 1.2 * @deprecated 1.2 Replaced by getTimeToLive()
*/ */
public byte getTTL() throws IOException public byte getTTL() throws IOException
{ {
// Use getTTL here rather than getTimeToLive in case we're using an impl // Use getTTL here rather than getTimeToLive in case we're using an impl
...@@ -123,43 +123,43 @@ public class MulticastSocket extends DatagramSocket ...@@ -123,43 +123,43 @@ public class MulticastSocket extends DatagramSocket
return impl.getTTL(); return impl.getTTL();
} }
/** /**
* Returns the current value of the "Time to Live" option. This is the * Returns the current value of the "Time to Live" option. This is the
* number of hops a packet can make before it "expires". * number of hops a packet can make before it "expires".
* *
* @return The TTL value * @return The TTL value
* *
* @exception IOException If an error occurs * @exception IOException If an error occurs
* *
* @since Java 1.2 * @since 1.2
*/ */
public int getTimeToLive() throws IOException public int getTimeToLive() throws IOException
{ {
return impl.getTimeToLive(); return impl.getTimeToLive();
} }
/** /**
* Sets the interface to use for multicast packets. * Sets the interface to use for sending multicast packets.
* *
* @param addr The new interface to use * @param inf The new interface to use
* *
* @exception SocketException If an error occurs * @exception SocketException If an error occurs
*/ */
public void setInterface(InetAddress inf) throws SocketException public void setInterface(InetAddress inf) throws SocketException
{ {
impl.setOption(SocketOptions.IP_MULTICAST_IF, inf); impl.setOption(SocketOptions.IP_MULTICAST_IF, inf);
} }
/** /**
* Sets the "Time to Live" value for a socket. The value must be between * Sets the "Time to Live" value for a socket. The value must be between
* 1 and 255. * 1 and 255.
* *
* @param ttl The new TTL value * @param ttl The new TTL value
* *
* @exception IOException If an error occurs * @exception IOException If an error occurs
* *
* @deprecated Replaced by <code>setTimeToLive</code> in Java 1.2 * @deprecated 1.2 Replaced by <code>setTimeToLive</code>
*/ */
public void setTTL(byte ttl) throws IOException public void setTTL(byte ttl) throws IOException
{ {
// Use setTTL here rather than setTimeToLive in case we're using an impl // Use setTTL here rather than setTimeToLive in case we're using an impl
...@@ -168,16 +168,16 @@ public class MulticastSocket extends DatagramSocket ...@@ -168,16 +168,16 @@ public class MulticastSocket extends DatagramSocket
impl.setTTL(ttl); impl.setTTL(ttl);
} }
/** /**
* Sets the "Time to Live" value for a socket. The value must be between * Sets the "Time to Live" value for a socket. The value must be between
* 1 and 255. * 1 and 255.
* *
* @param ttl The new TTL value * @param ttl The new TTL value
* *
* @exception IOException If an error occurs * @exception IOException If an error occurs
* *
* @since Java 1.2 * @since 1.2
*/ */
public void setTimeToLive(int ttl) throws IOException public void setTimeToLive(int ttl) throws IOException
{ {
if (ttl <= 0 || ttl > 255) if (ttl <= 0 || ttl > 255)
...@@ -186,13 +186,13 @@ public class MulticastSocket extends DatagramSocket ...@@ -186,13 +186,13 @@ public class MulticastSocket extends DatagramSocket
impl.setTimeToLive(ttl); impl.setTimeToLive(ttl);
} }
/** /**
* Joins the specified mulitcast group. * Joins the specified mulitcast group.
* *
* @param addr The address of the group to join * @param addr The address of the group to join
* *
* @exception IOException If an error occurs * @exception IOException If an error occurs
*/ */
public void joinGroup(InetAddress mcastaddr) throws IOException public void joinGroup(InetAddress mcastaddr) throws IOException
{ {
if (! mcastaddr.isMulticastAddress()) if (! mcastaddr.isMulticastAddress())
...@@ -205,13 +205,13 @@ public class MulticastSocket extends DatagramSocket ...@@ -205,13 +205,13 @@ public class MulticastSocket extends DatagramSocket
impl.join(mcastaddr); impl.join(mcastaddr);
} }
/** /**
* Leaves the specified multicast group * Leaves the specified multicast group
* *
* @param addr The address of the group to leave * @param addr The address of the group to leave
* *
* @exception IOException If an error occurs * @exception IOException If an error occurs
*/ */
public void leaveGroup(InetAddress mcastaddr) throws IOException public void leaveGroup(InetAddress mcastaddr) throws IOException
{ {
if (! mcastaddr.isMulticastAddress()) if (! mcastaddr.isMulticastAddress())
...@@ -224,16 +224,16 @@ public class MulticastSocket extends DatagramSocket ...@@ -224,16 +224,16 @@ public class MulticastSocket extends DatagramSocket
impl.leave(mcastaddr); impl.leave(mcastaddr);
} }
/** /**
* Sends a packet of data to a multicast address with a TTL that is * Sends a packet of data to a multicast address with a TTL that is
* different from the default TTL on this socket. The default TTL for * different from the default TTL on this socket. The default TTL for
* the socket is not changed. * the socket is not changed.
* *
* @param packet The packet of data to send * @param packet The packet of data to send
* @param ttl The TTL for this packet * @param ttl The TTL for this packet
* *
* @exception IOException If an error occurs * @exception IOException If an error occurs
*/ */
public synchronized void send(DatagramPacket p, byte ttl) throws IOException public synchronized void send(DatagramPacket p, byte ttl) throws IOException
{ {
SecurityManager s = System.getSecurityManager(); SecurityManager s = System.getSecurityManager();
......
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