Package org.apache.activemq.store.memory

Class MemoryMessageStore

java.lang.Object
org.apache.activemq.store.AbstractMessageStore
org.apache.activemq.store.memory.MemoryMessageStore
All Implemented Interfaces:
org.apache.activemq.Service, MessageStore
Direct Known Subclasses:
MemoryTopicMessageStore
public class MemoryMessageStore extends AbstractMessageStore
An implementation of MessageStore

  • Field Details

    • messageTable

      protected final Map<org.apache.activemq.command.MessageId,org.apache.activemq.command.Message> messageTable

    • lastBatchId

      protected org.apache.activemq.command.MessageId lastBatchId

    • sequenceId

      protected long sequenceId

  • Constructor Details

    • MemoryMessageStore

      public MemoryMessageStore(org.apache.activemq.command.ActiveMQDestination destination)

    • MemoryMessageStore

      public MemoryMessageStore(org.apache.activemq.command.ActiveMQDestination destination, Map<org.apache.activemq.command.MessageId,org.apache.activemq.command.Message> messageTable)

  • Method Details

    • addMessage

      public void addMessage(ConnectionContext context, org.apache.activemq.command.Message message) throws IOException
      Description copied from interface: MessageStore
      Adds a message to the message store
      Parameters:
      context - context
      Throws:
      IOException

    • getMessage

      public org.apache.activemq.command.Message getMessage(org.apache.activemq.command.MessageId identity) throws IOException
      Description copied from interface: MessageStore
      Looks up a message using either the String messageID or the messageNumber. Implementations are encouraged to fill in the missing key if its easy to do so.
      Parameters:
      identity - which contains either the messageID or the messageNumber
      Returns:
      the message or null if it does not exist
      Throws:
      IOException

    • removeMessage

      public void removeMessage(ConnectionContext context, org.apache.activemq.command.MessageAck ack) throws IOException
      Description copied from interface: MessageStore
      Removes a message from the message store.
      ack - the ack request that cause the message to be removed. It conatins the identity which contains the messageID of the message that needs to be removed.
      Throws:
      IOException

    • removeMessage

      public void removeMessage(org.apache.activemq.command.MessageId msgId) throws IOException
      Throws:
      IOException

    • recover

      public void recover(MessageRecoveryListener listener) throws Exception
      Description copied from interface: MessageStore
      Recover any messages to be delivered.
      Throws:
      Exception

    • removeAllMessages

      public void removeAllMessages(ConnectionContext context) throws IOException
      Description copied from interface: MessageStore
      Removes all the messages from the message store.
      Throws:
      IOException

    • delete

      public void delete()

    • recoverNextMessages

      public void recoverNextMessages(int maxReturned, MessageRecoveryListener listener) throws Exception
      Throws:
      Exception

    • resetBatching

      public void resetBatching()
      Description copied from interface: MessageStore
      A hint to the Store to reset any batching state for the Destination

    • setBatch

      public void setBatch(org.apache.activemq.command.MessageId messageId)
      Description copied from interface: MessageStore
      allow caching cursors to set the current batch offset when cache is exhausted
      Specified by:
      setBatch in interface MessageStore
      Overrides:
      setBatch in class AbstractMessageStore

    • updateMessage

      public void updateMessage(org.apache.activemq.command.Message message)
      Specified by:
      updateMessage in interface MessageStore
      Overrides:
      updateMessage in class AbstractMessageStore

    • recoverMessageStoreStatistics

      public void recoverMessageStoreStatistics() throws IOException
      Overrides:
      recoverMessageStoreStatistics in class AbstractMessageStore
      Throws:
      IOException

    • getType

      public MessageStore.StoreType getType()

    • incMessageStoreStatistics

      protected static final void incMessageStoreStatistics(MessageStoreStatistics stats, org.apache.activemq.command.Message message)

    • decMessageStoreStatistics

      protected static final void decMessageStoreStatistics(MessageStoreStatistics stats, org.apache.activemq.command.Message message)