How to use

getQueuePrefetch

method

in

org.apache.activemq.ActiveMQPrefetchPolicy

/**
 * Creates a <CODE>QueueReceiver</CODE> object to receive messages from
 * the specified queue using a message selector.
 *
 * @param queue the <CODE>Queue</CODE> to access
 * @param messageSelector only messages with properties matching the message
 *                selector expression are delivered. A value of null or an
 *                empty string indicates that there is no message selector
 *                for the message consumer.
 * @return QueueReceiver
 * @throws JMSException if the session fails to create a receiver due to
 *                 some internal error.
 * @throws InvalidDestinationException if an invalid queue is specified.
 * @throws InvalidSelectorException if the message selector is invalid.
 */
@Override
public QueueReceiver createReceiver(Queue queue, String messageSelector) throws JMSException {
  checkClosed();
  if (queue instanceof CustomDestination) {
    CustomDestination customDestination = (CustomDestination)queue;
    return customDestination.createReceiver(this, messageSelector);
  }
  ActiveMQPrefetchPolicy prefetchPolicy = this.connection.getPrefetchPolicy();
  return new ActiveMQQueueReceiver(this, getNextConsumerId(), ActiveMQMessageTransformation.transformDestination(queue), messageSelector, prefetchPolicy.getQueuePrefetch(),
                   prefetchPolicy.getMaximumPendingMessageLimit(), asyncDispatch);
}

  prefetch = prefetchPolicy.getTopicPrefetch();
} else {
  prefetch = prefetchPolicy.getQueuePrefetch();

/**
 * Creates a <CODE>QueueReceiver</CODE> object to receive messages from
 * the specified queue using a message selector.
 *
 * @param queue the <CODE>Queue</CODE> to access
 * @param messageSelector only messages with properties matching the message
 *                selector expression are delivered. A value of null or an
 *                empty string indicates that there is no message selector
 *                for the message consumer.
 * @return QueueReceiver
 * @throws JMSException if the session fails to create a receiver due to
 *                 some internal error.
 * @throws InvalidDestinationException if an invalid queue is specified.
 * @throws InvalidSelectorException if the message selector is invalid.
 */
@Override
public QueueReceiver createReceiver(Queue queue, String messageSelector) throws JMSException {
  checkClosed();
  if (queue instanceof CustomDestination) {
    CustomDestination customDestination = (CustomDestination)queue;
    return customDestination.createReceiver(this, messageSelector);
  }
  ActiveMQPrefetchPolicy prefetchPolicy = this.connection.getPrefetchPolicy();
  return new ActiveMQQueueReceiver(this, getNextConsumerId(), ActiveMQMessageTransformation.transformDestination(queue), messageSelector, prefetchPolicy.getQueuePrefetch(),
                   prefetchPolicy.getMaximumPendingMessageLimit(), asyncDispatch);
}

/**
 * Creates a <CODE>QueueReceiver</CODE> object to receive messages from
 * the specified queue using a message selector.
 *
 * @param queue the <CODE>Queue</CODE> to access
 * @param messageSelector only messages with properties matching the message
 *                selector expression are delivered. A value of null or an
 *                empty string indicates that there is no message selector
 *                for the message consumer.
 * @return QueueReceiver
 * @throws JMSException if the session fails to create a receiver due to
 *                 some internal error.
 * @throws InvalidDestinationException if an invalid queue is specified.
 * @throws InvalidSelectorException if the message selector is invalid.
 */
@Override
public QueueReceiver createReceiver(Queue queue, String messageSelector) throws JMSException {
  checkClosed();
  if (queue instanceof CustomDestination) {
    CustomDestination customDestination = (CustomDestination)queue;
    return customDestination.createReceiver(this, messageSelector);
  }
  ActiveMQPrefetchPolicy prefetchPolicy = this.connection.getPrefetchPolicy();
  return new ActiveMQQueueReceiver(this, getNextConsumerId(), ActiveMQMessageTransformation.transformDestination(queue), messageSelector, prefetchPolicy.getQueuePrefetch(),
                   prefetchPolicy.getMaximumPendingMessageLimit(), asyncDispatch);
}

/**
 * Creates a <CODE>QueueReceiver</CODE> object to receive messages from
 * the specified queue using a message selector.
 *
 * @param queue the <CODE>Queue</CODE> to access
 * @param messageSelector only messages with properties matching the message
 *                selector expression are delivered. A value of null or an
 *                empty string indicates that there is no message selector
 *                for the message consumer.
 * @return QueueReceiver
 * @throws JMSException if the session fails to create a receiver due to
 *                 some internal error.
 * @throws InvalidDestinationException if an invalid queue is specified.
 * @throws InvalidSelectorException if the message selector is invalid.
 */
@Override
public QueueReceiver createReceiver(Queue queue, String messageSelector) throws JMSException {
  checkClosed();
  if (queue instanceof CustomDestination) {
    CustomDestination customDestination = (CustomDestination)queue;
    return customDestination.createReceiver(this, messageSelector);
  }
  ActiveMQPrefetchPolicy prefetchPolicy = this.connection.getPrefetchPolicy();
  return new ActiveMQQueueReceiver(this, getNextConsumerId(), ActiveMQMessageTransformation.transformDestination(queue), messageSelector, prefetchPolicy.getQueuePrefetch(),
                   prefetchPolicy.getMaximumPendingMessageLimit(), asyncDispatch);
}

/**
 * Creates a <CODE>QueueReceiver</CODE> object to receive messages from
 * the specified queue using a message selector.
 * 
 * @param queue the <CODE>Queue</CODE> to access
 * @param messageSelector only messages with properties matching the message
 *                selector expression are delivered. A value of null or an
 *                empty string indicates that there is no message selector
 *                for the message consumer.
 * @return QueueReceiver
 * @throws JMSException if the session fails to create a receiver due to
 *                 some internal error.
 * @throws InvalidDestinationException if an invalid queue is specified.
 * @throws InvalidSelectorException if the message selector is invalid.
 */
public QueueReceiver createReceiver(Queue queue, String messageSelector) throws JMSException {
  checkClosed();
  if (queue instanceof CustomDestination) {
    CustomDestination customDestination = (CustomDestination)queue;
    return customDestination.createReceiver(this, messageSelector);
  }
  ActiveMQPrefetchPolicy prefetchPolicy = this.connection.getPrefetchPolicy();
  return new ActiveMQQueueReceiver(this, getNextConsumerId(), ActiveMQMessageTransformation.transformDestination(queue), messageSelector, prefetchPolicy.getQueuePrefetch(),
                   prefetchPolicy.getMaximumPendingMessageLimit(), asyncDispatch);
}

  prefetch = prefetchPolicy.getTopicPrefetch();
} else {
  prefetch = prefetchPolicy.getQueuePrefetch();

  prefetch = prefetchPolicy.getTopicPrefetch();
} else {
  prefetch = prefetchPolicy.getQueuePrefetch();

  prefetch = prefetchPolicy.getTopicPrefetch();
} else {
  prefetch = prefetchPolicy.getQueuePrefetch();

  prefetch = prefetchPolicy.getTopicPrefetch();
} else {
  prefetch = prefetchPolicy.getQueuePrefetch();