Package org.apache.activemq.broker.region.policy

Class QueryBasedSubscriptionRecoveryPolicy

java.lang.Object

org.apache.activemq.broker.region.policy.QueryBasedSubscriptionRecoveryPolicy

All Implemented Interfaces:

SubscriptionRecoveryPolicy, Service

public class QueryBasedSubscriptionRecoveryPolicy
extends Object
implements SubscriptionRecoveryPolicy

This implementation of SubscriptionRecoveryPolicy will perform a user specific query mechanism to load any messages they may have missed.

Constructor Summary

Constructors

Constructor	Description
QueryBasedSubscriptionRecoveryPolicy()

Method Summary

Modifier and Type	Method	Description
boolean	add(ConnectionContext context, MessageReference message)	A message was sent to the destination.
Message[]	browse(ActiveMQDestination dest)
protected void	configure(ActiveMQMessage msg)
SubscriptionRecoveryPolicy	copy()	Used to copy the policy object.
protected ProducerId	createProducerId()
protected void	dispatchInitialMessage(Message message, Destination regionDestination, ConnectionContext context, SubscriptionRecovery sub)
MessageQuery	getQuery()
void	recover(ConnectionContext context, Topic topic, SubscriptionRecovery sub)	Let a subscription recover message held by the policy.
void	setBroker(Broker broker)
void	setQuery(MessageQuery query)	Sets the query strategy to load initial messages
void	start()
void	stop()

Methods inherited from class java.lang.Object

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

Constructor Detail

QueryBasedSubscriptionRecoveryPolicy

public QueryBasedSubscriptionRecoveryPolicy()

Method Detail

copy

public SubscriptionRecoveryPolicy copy()

Description copied from interface: SubscriptionRecoveryPolicy

Used to copy the policy object.

Specified by:

copy in interface SubscriptionRecoveryPolicy

Returns:

the copy

add

public boolean add(ConnectionContext context,
                   MessageReference message)
            throws Exception

Description copied from interface: SubscriptionRecoveryPolicy

A message was sent to the destination.

Specified by:

add in interface SubscriptionRecoveryPolicy

Returns:

true if successful

Throws:

Exception

recover

public void recover(ConnectionContext context,
                    Topic topic,
                    SubscriptionRecovery sub)
             throws Exception

Description copied from interface: SubscriptionRecoveryPolicy

Let a subscription recover message held by the policy.

Specified by:

recover in interface SubscriptionRecoveryPolicy

Throws:

Exception

start

public void start()
           throws Exception

Specified by:

start in interface Service

Throws:

Exception

stop

public void stop()
          throws Exception

Specified by:

stop in interface Service

Throws:

Exception

getQuery

public MessageQuery getQuery()

setQuery

public void setQuery(MessageQuery query)

Sets the query strategy to load initial messages

browse

public Message[] browse(ActiveMQDestination dest)
                 throws Exception

Specified by:

browse in interface SubscriptionRecoveryPolicy

Returns:

messages

Throws:

Exception

setBroker

public void setBroker(Broker broker)

Specified by:

setBroker in interface SubscriptionRecoveryPolicy

dispatchInitialMessage

protected void dispatchInitialMessage(Message message,
                                      Destination regionDestination,
                                      ConnectionContext context,
                                      SubscriptionRecovery sub)

configure

protected void configure(ActiveMQMessage msg)
                  throws JMSException

Throws:

JMSException

createProducerId

protected ProducerId createProducerId()