SpringJMS CachingConnectionFactory Sınıfı

Giriş
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import org.springframework.jms.connection.CachingConnectionFactory;

Açıklaması şöyle. ConnectionFactory nesnelerini gerçekten cache'leyerek kullanılır

Although both the PooledConnectionFactory and the CachingConnectionFactory state that they each pool connections, sessions and producers, the PooledConnectionFactory does not actually create a cache of multiple producers. It simply uses a singleton pattern to hand out a single cached producer when one is requested. Whereas the CachingConnectionFactory actually creates a cache containing multiple producers and hands out one producer from the cache when one is requested.

Açıklaması şöyle

In order to connect and be able to send/receive messages, we need to configure a ConnectionFactory.

A ConnectionFactory is one of the JMS administered objects which are preconfigured by an administrator. A client with the help of the configuration will make the connection with a JMS provider.

Spring provides 2 types of ConnectionFactory:

- SingleConnectionFactory – is an implementation of ConnectionFactory interface, that will return the same connection on all createConnection() calls and ignore calls to close()
- CachingConnectionFactory – extends the functionality of the SingleConnectionFactory and adds enhances it with a caching of Sessions, MessageProducers, and MessageConsumers
destroy metodu

Şöyle yaparızz

@Bean(destroyMethod = "destroy")
public ConnectionFactory connectionFactory(JmsProperties appProperties) {
  ActiveMQConnectionFactory cf = ...

  return new CachingConnectionFactory(cf) {
    @Override
    public void destroy() {
      super.destroy();

      try {
        Thread.sleep(30000);
      } catch (InterruptedException e) {
        ...
      }
      System.out.println("CachingConnectionFactory is destroyed!");
    }
  };
}