atavism.msgsys
Class MessageType

java.lang.Object
  atavism.msgsys.MessageType

All Implemented Interfaces:

Marshallable, java.io.Serializable

public class MessageType
extends java.lang.Object
implements java.io.Serializable, Marshallable

Message type object. Message types have a name and a number. The message number is assigned when the MessageType is added to a MessageCatalog.

Applications should declare static MessageType instances using intern(java.lang.String) and reuse that object. For example:

public static MessageType MSG_TYPE_SKY_FALLING = MessageType.intern("me.SKY_FALLING");

It is suggested that the MessageType string name be derived from the program identifier. Atavism reserves all names beginning with "ao.".

See Also:

Serialized Form

Field Summary

protected static java.util.Map<java.lang.String,MessageType>	internedMsgTypes
protected java.lang.Integer	msgTypeNumber
protected java.lang.String	msgTypeString

Constructor Summary

	MessageType() No argument constructor is needed for marshalling.
protected	MessageType(java.lang.String msgTypeString)

Method Summary

int	getMsgTypeNumber() Get message type number.
java.lang.String	getMsgTypeString() Get message type name.
static MessageType	intern(java.lang.String typeName) Get singleton MessageType instance for a message type name.
void	marshalObject(AOByteBuffer buf) Internal use only.
static MessageType	readObjectUtility(java.io.ObjectInputStream in) Internal use only.
void	setMsgTypeNumber(int msgTypeNumber) Set message type number.
java.lang.String	toString()
java.lang.Object	unmarshalObject(AOByteBuffer buf) Internal use only.
static void	writeObjectUtility(java.io.ObjectOutputStream out, MessageType type) Internal use only.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

internedMsgTypes

protected static java.util.Map<java.lang.String,MessageType> internedMsgTypes

msgTypeString

protected transient java.lang.String msgTypeString

msgTypeNumber

protected transient java.lang.Integer msgTypeNumber

Constructor Detail

MessageType

public MessageType()

No argument constructor is needed for marshalling.

MessageType

protected MessageType(java.lang.String msgTypeString)

Method Detail

getMsgTypeNumber

public int getMsgTypeNumber()

Get message type number.

setMsgTypeNumber

public void setMsgTypeNumber(int msgTypeNumber)

Set message type number. Applications should add the MessageType to a MessageCatalog to assign a number.

getMsgTypeString

public java.lang.String getMsgTypeString()

Get message type name.

intern

public static MessageType intern(java.lang.String typeName)

Get singleton MessageType instance for a message type name.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

readObjectUtility

public static MessageType readObjectUtility(java.io.ObjectInputStream in)
                                     throws java.io.IOException,
                                            java.lang.ClassNotFoundException

Internal use only.

Throws:

java.io.IOException

java.lang.ClassNotFoundException

writeObjectUtility

public static void writeObjectUtility(java.io.ObjectOutputStream out,
                                      MessageType type)
                               throws java.io.IOException,
                                      java.lang.ClassNotFoundException

Internal use only.

Throws:

java.io.IOException

java.lang.ClassNotFoundException

marshalObject

public void marshalObject(AOByteBuffer buf)

Internal use only.

Specified by:

marshalObject in interface Marshallable

Parameters:

buf - The byte buffer

unmarshalObject

public java.lang.Object unmarshalObject(AOByteBuffer buf)

Internal use only.

Specified by:

unmarshalObject in interface Marshallable