com.sun.squawk.debugger
Class CommandPacket

java.lang.Object
  com.sun.squawk.debugger.Packet
      com.sun.squawk.debugger.CommandPacket

public final class CommandPacket
extends Packet

A CommandPacket encapsulates a JDWP command packet.

CommandPacket

public CommandPacket(int set,
                     int command,
                     boolean needsReply)

Creates a packet to send a new command packet.

Parameters:

owner - the owner of the new packet

set - the JDWP command set constant

command - the JDWP command constant

CommandPacket

public CommandPacket(int id,
                     int dataLength,
                     DataInputStream data,
                     int set,
                     int command,
                     boolean needsReply)
              throws IOException

Creates a packet to encapsulate a received JDWP command packet.

Parameters:

owner - the JDWPListener that received the packet

id - the identifier in the command packet

dataLength - the length of the data to read from data

data - the contents of the data field of the packet

set - the JDWP command set constant

command - the JDWP command constant

Throws:

IOException

set

public int set()

Returns:

the JDWP command set identifier of this command.

command

public int command()

Returns:

the JDWP command identifier of this command.

createReply

public ReplyPacket createReply(int errorCode)

Creates a packet to send a reply for this command.

Parameters:

errorCode - the JDWP error code to return in the reply

Returns:

the reply packet

needsReply

public final boolean needsReply()

getFlags

public int getFlags()

Gets the value for the 'flags' field in the header of this packet.

Specified by:

getFlags in class Packet

getReply

public ReplyPacket getReply()

Gets the reply to this sent command packet.

Returns:

the reply or null if it has not yet been received

writeFields

protected void writeFields(DataOutputStream dos)
                    throws IOException

Write the set and command fields to dos

Specified by:

writeFields in class Packet

Parameters:

dos - DataOutputStream

Throws:

IOException

toString

public static String toString(int set,
                              int command)

Gets the identifier for a given JDWP command.

Parameters:

set - a command set

command - a command with set

See Also:

JDWP

toString

public String toString()

Returns a string representation of the object. In general, the toString method returns a string that "textually represents" this object. The result should be a concise but informative representation that is easy for a person to read. It is recommended that all subclasses override this method.

The toString method for class Object returns a string consisting of the name of the class of which the object is an instance, the at-sign character `@', and the unsigned hexadecimal representation of the hash code of the object. In other words, this method returns a string equal to the value of:

 getClass().getName() + '@' + Integer.toHexString(hashCode())
 

Specified by:

toString in class Packet

Returns:

a string representation of the object.