Life Cycle

Features > ActiveMQ Classic Real Time > Life Cycle

Life cycle of Channels

Blaze Channels are in one of five states:

Constructed

the Channel isn’t initialized or has been shutDown

initialized

you can explicitly initialize a Channel by invoking its init() method. At this point its Configuration is set

BlazeChannelFactory factory = new BlazeChannelFactory();
BlazeChannel channel = factory.createChannel();
channel.init();

started

this will implicitly initialize the channel and start the Channel’s underlying communication with its peers:

BlazeChannelFactory factory = new BlazeChannelFactory();
BlazeChannel channel = factory.createChannel();
channel.start();

stopped

this will stop communication - however you are able to re-start the channel at a latter point

BlazeChannelFactory factory = new BlazeChannelFactory();
BlazeChannel channel = factory.createChannel();
channel.stop();
// do something else
...
//re-start
channel.start();

shut down

this will implicitly call stop() - and de-construct the channel. It is possible to re-initialize the channel again - and it is recommend that to apply configuration changes to the channel - it be shut down and re-started - e.g.

BlazeChannelFactory factory = new BlazeChannelFactory();
BlazeChannel channel = factory.createChannel();
channel.shutDown();
// change the congiguration
channel.getConfiguration().setBroadcastURI("tcp://localhost:60661");
//re-start
channel.start();