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package javax.management.j2ee.statistics;

/**
 * Specifies the statistics provided by a JMS session. 
 *
 * @author Hans Hrasna
 */
public interface JMSSessionStats extends Stats {

     /**
     * Returns an array of JMSProducerStats that provide statistics about the message
     * producers associated with the referencing JMS session statistics.
     */
    JMSProducerStats[] getProducers();

    /**
     * Returns an array of JMSConsumerStats that provide statistics about the message
     * consumers associated with the referencing JMS session statistics. 
     */
    JMSConsumerStats[] getConsumers();

    /**
     * Number of messages exchanged. 
     */
    CountStatistic getMessageCount();

    /**
     * Number of pending messages. 
     */
    CountStatistic getPendingMessageCount();

    /**
     * Number of expired messages. 
     */
    CountStatistic getExpiredMessageCount();

    /**
     * Time spent by a message before being delivered. 
     */
    TimeStatistic getMessageWaitTime();

    /**
     * Number of durable subscriptions. 
     */
    CountStatistic getDurableSubscriptionCount();
}
