Size of object?

[voidflux]

Hey guys I was wondering if its possble to figure out how big an object is.

For instance, here's my message object class:

public class Message {
	
	String Identifer;
	String Serial;
	String Node;
	String NodeAlias;
	String Manager;
	String Agent;
	String AlertGroup;
	String AlertKey;
	String Severity;
	String Summary;
	String StateChange;
	String FirstOccurance;
	String LastOccurance;
	String InternalLast;
	String EventId;
	String LocalNodeAlias;
	
	//these are datamembers that will be used during 
	//the sending of the message to the reciever
	//packetID should be incremented each time a new message is created 
	public static Integer PacketID;
	Integer sizeOfPacket;	  //I'll store the message's size in this data member.
	String packetType;
	
	
	
	
	Message()
	{
		 Identifer = "";
		 Serial = "";
		 Node = "";
		 NodeAlias = "";
		 Manager = "";
		 Agent = "";
		 AlertGroup = "";
		 AlertKey = "";
		 Severity = "";
		 Summary = "";
		 StateChange = "";
		 FirstOccurance = "";
		 LastOccurance = "";
		 InternalLast = "";
		 EventId = "";
		 LocalNodeAlias = "";
	}
	
	void print()
	{
		System.out.println("\nIdentifer: " + this.Identifer + '\n' 
				+ "Serial: " + this.Serial + '\n' 
				+ "Node: " + this.Node + '\n' 
				+ "NodeAlias: " + this.NodeAlias + '\n'
				+ "Manager: "  + this.Manager + '\n'
				+ "Agent: " + this.Agent + '\n'
				+ "AlertGroup: " + this.AlertGroup + '\n'
				+ "AlertKey: " + this.AlertKey + '\n'
				+ "Severity: " + this.Severity + '\n'
				+ "Summary: " + this.Summary + '\n'
				+ "StateChange: " + this.StateChange + '\n'
				+ "FirstOccurance: " + this.FirstOccurance + '\n'
				+ "LastOccurance: " + 	this.LastOccurance + '\n'
				+ "InternalLast: " + this.InternalLast + '\n'
				+ "EventId: " + this.EventId + '\n'
				+ "LocalNodeAlias: " + this.LocalNodeAlias + '\n');
	}
   

}

Once I get a message from an event server, I create an object and populate the message's data members.

Now I want to know how big that message is, meaning all the messages datamembers once I fill them up.

The "real" size isn't what is important, the important thing is when I send this message object to the reciever the reciever is going to compare how many bytes it got, and look at the message's data member, Integer sizeOfPacket;

If the sizeOfPacket matches how much the reciever got then all is well. If not then packet loss must of occured so resend the message.

any help would be great! thanks!