#include <MessageStoreModule.h>
Inheritance diagram for qpid::broker::MessageStoreModule:
Public Member Functions | |
MessageStoreModule (const std::string &name) | |
std::auto_ptr< TransactionContext > | begin () |
std::auto_ptr< TPCTransactionContext > | begin (const std::string &xid) |
void | prepare (TPCTransactionContext &txn) |
void | commit (TransactionContext &txn) |
void | abort (TransactionContext &txn) |
void | collectPreparedXids (std::set< std::string > &xids) |
void | create (const PersistableQueue &queue) |
Record the existence of a durable queue. | |
void | destroy (const PersistableQueue &queue) |
Destroy a durable queue. | |
void | create (const PersistableExchange &exchange) |
Record the existence of a durable exchange. | |
void | destroy (const PersistableExchange &exchange) |
Destroy a durable exchange. | |
void | recover (RecoveryManager &queues) |
Request recovery of queue and message state from store. | |
void | stage (PersistableMessage &msg) |
Stores a messages before it has been enqueued (enqueueing automatically stores the message so this is only required if storage is required prior to that point). | |
void | destroy (PersistableMessage &msg) |
Destroys a previously staged message. | |
void | appendContent (PersistableMessage &msg, const std::string &data) |
Appends content to a previously staged message. | |
void | loadContent (PersistableMessage &msg, std::string &data, uint64_t offset, uint32_t length) |
Loads (a section) of content data for the specified message (previously stored through a call to stage or enqueue) into data. | |
void | enqueue (TransactionContext *ctxt, PersistableMessage &msg, const PersistableQueue &queue) |
Enqueues a message, storing the message if it has not been previously stored and recording that the given message is on the given queue. | |
void | dequeue (TransactionContext *ctxt, PersistableMessage &msg, const PersistableQueue &queue) |
Dequeues a message, recording that the given message is no longer on the given queue and deleting the message if it is no longer on any other queue. |
void qpid::broker::MessageStoreModule::dequeue | ( | TransactionContext * | ctxt, | |
PersistableMessage & | msg, | |||
const PersistableQueue & | queue | |||
) | [virtual] |
Dequeues a message, recording that the given message is no longer on the given queue and deleting the message if it is no longer on any other queue.
msg | the message to dequeue | |
queue | the name of th queue from which it is to be dequeued | |
xid | (a pointer to) an identifier of the distributed transaction in which the operation takes place or null for 'local' transactions |
Implements qpid::broker::MessageStore.
void qpid::broker::MessageStoreModule::destroy | ( | PersistableMessage & | msg | ) | [virtual] |
Destroys a previously staged message.
This only needs to be called if the message is never enqueued. (Once enqueued, deletion will be automatic when the message is dequeued from all queues it was enqueued onto).
Implements qpid::broker::MessageStore.
void qpid::broker::MessageStoreModule::enqueue | ( | TransactionContext * | ctxt, | |
PersistableMessage & | msg, | |||
const PersistableQueue & | queue | |||
) | [virtual] |
Enqueues a message, storing the message if it has not been previously stored and recording that the given message is on the given queue.
msg | the message to enqueue | |
queue | the name of the queue onto which it is to be enqueued | |
xid | (a pointer to) an identifier of the distributed transaction in which the operation takes place or null for 'local' transactions |
Implements qpid::broker::MessageStore.
void qpid::broker::MessageStoreModule::loadContent | ( | PersistableMessage & | msg, | |
std::string & | data, | |||
uint64_t | offset, | |||
uint32_t | length | |||
) | [virtual] |
Loads (a section) of content data for the specified message (previously stored through a call to stage or enqueue) into data.
The offset refers to the content only (i.e. an offset of 0 implies that the start of the content should be loaded, not the headers or related meta-data).
Implements qpid::broker::MessageStore.
void qpid::broker::MessageStoreModule::stage | ( | PersistableMessage & | msg | ) | [virtual] |
Stores a messages before it has been enqueued (enqueueing automatically stores the message so this is only required if storage is required prior to that point).
If the message has not yet been stored it will store the headers as well as any content passed in. A persistence id will be set on the message which can be used to load the content or to append to it.
Implements qpid::broker::MessageStore.