org.apache.activemq.store

Class AbstractMessageStore

java.lang.Object

org.apache.activemq.store.AbstractMessageStore

All Implemented Interfaces:

Service, MessageStore

Direct Known Subclasses:

JDBCMessageStore, JournalMessageStore, KahaDBStore.KahaDBMessageStore, MemoryMessageStore, TempKahaDBStore.KahaDBMessageStore

public abstract class AbstractMessageStore
extends java.lang.Object
implements MessageStore

Field Summary

Fields

Modifier and Type	Field and Description
protected ActiveMQDestination	destination
static java.util.concurrent.FutureTask<java.lang.Object>	FUTURE
protected boolean	prioritizedMessages

Constructor Summary

Constructors

Constructor and Description
AbstractMessageStore(ActiveMQDestination destination)

Method Summary

Methods

Modifier and Type	Method and Description
void	addMessage(ConnectionContext context, Message message, boolean canOptimizeHint) Adds a message to the message store
java.util.concurrent.Future<java.lang.Object>	asyncAddQueueMessage(ConnectionContext context, Message message) Adds a message to the message store
java.util.concurrent.Future<java.lang.Object>	asyncAddQueueMessage(ConnectionContext context, Message message, boolean canOptimizeHint) Adds a message to the message store
java.util.concurrent.Future<java.lang.Object>	asyncAddTopicMessage(ConnectionContext context, Message message) Adds a message to the message store
java.util.concurrent.Future<java.lang.Object>	asyncAddTopicMessage(ConnectionContext context, Message message, boolean canOptimizeHint) Adds a message to the message store
void	dispose(ConnectionContext context)
ActiveMQDestination	getDestination() The destination that the message store is holding messages for.
boolean	isEmpty() flag to indicate if the store is empty
boolean	isPrioritizedMessages()
void	removeAsyncMessage(ConnectionContext context, MessageAck ack)
void	setBatch(MessageId messageId) allow caching cursors to set the current batch offset when cache is exhausted
void	setMemoryUsage(MemoryUsage memoryUsage)
void	setPrioritizedMessages(boolean prioritizedMessages) A hint to the store to try recover messages according to priority
void	start()
void	stop()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.activemq.store.MessageStore

addMessage, getMessage, getMessageCount, recover, recoverNextMessages, removeAllMessages, removeMessage, resetBatching

Field Detail

FUTURE

public static final java.util.concurrent.FutureTask<java.lang.Object> FUTURE

destination

protected final ActiveMQDestination destination

prioritizedMessages

protected boolean prioritizedMessages

Constructor Detail

AbstractMessageStore

public AbstractMessageStore(ActiveMQDestination destination)

Method Detail

dispose

public void dispose(ConnectionContext context)

Specified by:

dispose in interface MessageStore

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

getDestination

public ActiveMQDestination getDestination()

Description copied from interface: MessageStore

The destination that the message store is holding messages for.

Specified by:

getDestination in interface MessageStore

Returns:

the destination

setMemoryUsage

public void setMemoryUsage(MemoryUsage memoryUsage)

Specified by:

setMemoryUsage in interface MessageStore

Parameters:

memoryUsage - The SystemUsage that is controlling the destination's memory usage.

setBatch

public void setBatch(MessageId messageId)
              throws java.io.IOException,
                     java.lang.Exception

Description copied from interface: MessageStore

allow caching cursors to set the current batch offset when cache is exhausted

Specified by:

setBatch in interface MessageStore

Throws:

java.lang.Exception

java.io.IOException

isEmpty

public boolean isEmpty()
                throws java.lang.Exception

flag to indicate if the store is empty

Specified by:

isEmpty in interface MessageStore

Returns:

true if the message count is 0

Throws:

java.lang.Exception

setPrioritizedMessages

public void setPrioritizedMessages(boolean prioritizedMessages)

Description copied from interface: MessageStore

A hint to the store to try recover messages according to priority

Specified by:

setPrioritizedMessages in interface MessageStore

isPrioritizedMessages

public boolean isPrioritizedMessages()

Specified by:

isPrioritizedMessages in interface MessageStore

Returns:

true if store is trying to recover messages according to priority

addMessage

public void addMessage(ConnectionContext context,
              Message message,
              boolean canOptimizeHint)
                throws java.io.IOException

Description copied from interface: MessageStore

Adds a message to the message store

Specified by:

addMessage in interface MessageStore

Parameters:

context - context

canOptimizeHint - - give a hint to the store that the message may be consumed before it hits the disk

Throws:

java.io.IOException

asyncAddQueueMessage

public java.util.concurrent.Future<java.lang.Object> asyncAddQueueMessage(ConnectionContext context,
                                                                 Message message)
                                                                   throws java.io.IOException

Description copied from interface: MessageStore

Adds a message to the message store

Specified by:

asyncAddQueueMessage in interface MessageStore

Parameters:

context - context

Returns:

a Future to track when this is complete

Throws:

java.io.IOException

asyncAddQueueMessage

public java.util.concurrent.Future<java.lang.Object> asyncAddQueueMessage(ConnectionContext context,
                                                                 Message message,
                                                                 boolean canOptimizeHint)
                                                                   throws java.io.IOException

Description copied from interface: MessageStore

Adds a message to the message store

Specified by:

asyncAddQueueMessage in interface MessageStore

Parameters:

context - context

canOptimizeHint - - give a hint to the store that the message may be consumed before it hits the disk

Returns:

a Future to track when this is complete

Throws:

java.io.IOException

asyncAddTopicMessage

public java.util.concurrent.Future<java.lang.Object> asyncAddTopicMessage(ConnectionContext context,
                                                                 Message message,
                                                                 boolean canOptimizeHint)
                                                                   throws java.io.IOException

Description copied from interface: MessageStore

Adds a message to the message store

Specified by:

asyncAddTopicMessage in interface MessageStore

Parameters:

context - context

canOptimizeHint - - give a hint to the store that the message may be consumed before it hits the disk

Returns:

a Future to track when this is complete

Throws:

java.io.IOException

asyncAddTopicMessage

public java.util.concurrent.Future<java.lang.Object> asyncAddTopicMessage(ConnectionContext context,
                                                                 Message message)
                                                                   throws java.io.IOException

Description copied from interface: MessageStore

Adds a message to the message store

Specified by:

asyncAddTopicMessage in interface MessageStore

Parameters:

context - context

Returns:

a Future to track when this is complete

Throws:

java.io.IOException

removeAsyncMessage

public void removeAsyncMessage(ConnectionContext context,
                      MessageAck ack)
                        throws java.io.IOException

Specified by:

removeAsyncMessage in interface MessageStore

Throws:

java.io.IOException