Creating Message Producers

JMS applications use a MessageProducer object to send messages to destinations. To create a MessageProducer, call session.createProducer(Destination destination).

You can also configure default properties for a producer instance through the following methods:

• MessageProducer.setDeliveryMode(int deliveryMode)

  Sets the producer’s default delivery mode (Persistent or Non-Persistent). If the delivery mode is not specified, the default delivery mode specified in the Connection Factory is used.

  By default, Direct Transport is used to deliver Non-Persistent messages from producers to the event broker. (The message transport mode is set through the Connection Factory; for more information on message transport modes, refer to Message Transport Modes.)

• MessageProducer.setDisableMessageID(boolean value)

  Sets whether message IDs are disabled. Note that disabling message IDs can improve performance.

• MessageProducer.setDisableMessageTimestamp(boolean value)

  Sets whether message timestamps are disabled. Note that disabling message timestamps can improve performance.

• MessageProducer.setPriority (int defaultPriority)

  Sets the producer's default priority value, with 0 being the lowest priority and 9 the highest.

  When an endpoint is configured to enforce message priority, it increases the chance that duplicate messages will be delivered to a consuming client after it recovers from a connection failure (refer to Message Priority).

• MessageProducer.setTimeToLive(long timeToLive)

  Sets TTL value (in milliseconds) for sent messages. A value of 0 means that the messages never expire.