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.

Field Summary

Fields inherited from class com.sun.squawk.debugger.Packet

FLAG_NEEDS_REPLY, FLAG_REPLY

Constructor Summary

CommandPacket(int set, int command, boolean needsReply)
Creates a packet to send a new command packet.

CommandPacket(int id, int dataLength, DataInputStream data, int set, int command, boolean needsReply)
Creates a packet to encapsulate a received JDWP command packet.

Method Summary

int	command()
ReplyPacket	createReply(int errorCode) Creates a packet to send a reply for this command.
int	getFlags() Gets the value for the 'flags' field in the header of this packet.
ReplyPacket	getReply() Gets the reply to this sent command packet.
boolean	needsReply()
int	set()
String	toString() Returns a string representation of the object.
static String	toString(int set, int command) Gets the identifier for a given JDWP command.
protected void	writeFields(DataOutputStream dos) Write the set and command fields to dos

Methods inherited from class com.sun.squawk.debugger.Packet

appendData, getID, getInputStream, getOutputStream, getSize, write

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

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

Method Detail

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.