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 java.lang.Object
implements SubscriptionRecoveryPolicy

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

Version:

$Revision: 426366 $

Constructor Summary

QueryBasedSubscriptionRecoveryPolicy()

Method Summary

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(javax.jms.Message message, Destination regionDestination, MessageEvaluationContext msgContext, Subscription sub)
MessageQuery	getQuery()
void	recover(ConnectionContext context, Topic topic, Subscription sub) Let a subscription recover message held by the policy.
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

add

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

Description copied from interface: SubscriptionRecoveryPolicy

A message was sent to the destination.

Specified by:

add in interface SubscriptionRecoveryPolicy

Returns:

true if successful

Throws:

java.lang.Exception

recover

public void recover(ConnectionContext context,
                    Topic topic,
                    Subscription sub)
             throws java.lang.Exception

Description copied from interface: SubscriptionRecoveryPolicy

Let a subscription recover message held by the policy.

Specified by:

recover in interface SubscriptionRecoveryPolicy

Throws:

java.lang.Exception

start

public void start()
           throws java.lang.Exception

Specified by:

start in interface Service

Throws:

java.lang.Exception

stop

public void stop()
          throws java.lang.Exception

Specified by:

stop in interface Service

Throws:

java.lang.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 java.lang.Exception

Specified by:

browse in interface SubscriptionRecoveryPolicy

Returns:

messages

Throws:

java.lang.Exception

dispatchInitialMessage

protected void dispatchInitialMessage(javax.jms.Message message,
                                      Destination regionDestination,
                                      MessageEvaluationContext msgContext,
                                      Subscription sub)

configure

protected void configure(ActiveMQMessage msg)

createProducerId

protected ProducerId createProducerId()