asia.stampy.server.listener.transaction

Class AbstractTransactionListener<SVR extends AbstractStampyMessageGateway>

java.lang.Object

asia.stampy.server.listener.transaction.AbstractTransactionListener<SVR>

All Implemented Interfaces:

StampyMessageListener

Direct Known Subclasses:

NettyTransactionListener

@StampyLibrary(libraryName="stampy-client-server")
public abstract class AbstractTransactionListener<SVR extends AbstractStampyMessageGateway>
extends java.lang.Object
implements StampyMessageListener

This class manages transactional boundaries, ensuring that a transaction has been started prior to an StompMessageType.ABORT or. StompMessageType.COMMIT and that a transaction is began only once.

Field Summary

Fields

Modifier and Type	Field and Description
protected java.util.Map<HostPort,java.util.Queue<java.lang.String>>	activeTransactions The active transactions.

Constructor Summary

Constructors

Constructor and Description
AbstractTransactionListener()

Method Summary

Methods

Modifier and Type	Method and Description
protected abstract void	ensureCleanup() Configure the gateway to clean up the map of active transactions on session termination.
SVR	getGateway() Gets the gateway.
StompMessageType[]	getMessageTypes() Gets the message types of which the implementation is interested.
boolean	isForMessage(StampyMessage<?> message) Returns true if the message should be processed by the implementation.
void	messageReceived(StampyMessage<?> message, HostPort hostPort) Invoked when the type and the message are to be processed by the implementation.
void	setGateway(SVR gateway) Inject the AbstractStampyMessageGateway on system startup.

Methods inherited from class java.lang.Object

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

Field Detail

activeTransactions

protected java.util.Map<HostPort,java.util.Queue<java.lang.String>> activeTransactions

The active transactions.

Constructor Detail

AbstractTransactionListener

public AbstractTransactionListener()

Method Detail

getMessageTypes

public StompMessageType[] getMessageTypes()

Description copied from interface: StampyMessageListener

Gets the message types of which the implementation is interested.

Specified by:

getMessageTypes in interface StampyMessageListener

Returns:

the message types

isForMessage

public boolean isForMessage(StampyMessage<?> message)

Description copied from interface: StampyMessageListener

Returns true if the message should be processed by the implementation.

Specified by:

isForMessage in interface StampyMessageListener

Parameters:

message - the message

Returns:

true, if is for message

messageReceived

public void messageReceived(StampyMessage<?> message,
                   HostPort hostPort)
                     throws java.lang.Exception

Description copied from interface: StampyMessageListener

Invoked when the type and the message are to be processed by the implementation.

Specified by:

messageReceived in interface StampyMessageListener

Parameters:

message - the message

hostPort - the host port

Throws:

java.lang.Exception - the exception

getGateway

public SVR getGateway()

Gets the gateway.

Returns:

the gateway

setGateway

public void setGateway(SVR gateway)

Inject the AbstractStampyMessageGateway on system startup.

Parameters:

gateway - the new gateway

ensureCleanup

protected abstract void ensureCleanup()

Configure the gateway to clean up the map of active transactions on session termination.