In the directoryexamples, you will find 2 sets of examples:
The examples will be expanded on before JBoss Messaging 2.0 GA release
It is highly recommended that you familiarise yourself with the examples.
Make sure you start JBoss Messaging before running the examples!
The following JMS examples are provided. To run these you will first need to start the server as shown in the installation chapter.
For each example, you can always override the default ports it will try to connect to by editing jndi.properties in the config directory
To run a specific example open up a shell or command prompt and navigate into the examples/jms directory and run the command ant followed by the example name, as follows
ant queueExample
The output should be similar to the following
Buildfile: build.xml
init:
[mkdir] Created dir: /home/andy/projects/jBossMessaging/docs/examples/jms/build
compile:
[javac] Compiling 5 source files to /home/andy/projects/jBossMessaging/docs/
examples/jms/build
queueExample:
[java] 10:59:02,124 INFO @main [QueueExample] sending message to queue
[java] 10:59:02,187 INFO @main [QueueExample] message received from queue
[java] 10:59:02,187 INFO @main [QueueExample] message = This is a text message!
BUILD SUCCESSFUL
Total time: 3 seconds
The following examples are available
queueExample
This example shows a simple send and receive to a remote queue using a JMS client
topicExample
This example shows a simple send and receive to a remote topic using a JMS client
durSubExample
This example shows the use of a durable subscriber.
perfSender
This example will run a basic performance test. It sends messages to a destination according to the specified parameters. This needs to be used in conjunction with the perfListener example. The number of messages, delivery mode etc can be configured as follows:
ant -Dmessage.count=20000 -Ddelivery.mode=PERSISTENT perfSender
The following parameters can be configured for the sender
message.count
The number of messages to send.
delivery.mode
The delivery mode to use, PERSISTENT or NON_PERSISTENT.
message.warmup.count
How many messages to warm up for. Because of the JIT compiler maximum throughput will take a little while to kick in.
message.size
The size of message to send, in bytes
sess.trans
Whether or not the session is transacted.
sess.trans.size
If the session is transacted the batch size to commit.
queue.lookup
The name of the queue to use.
cf.lookup
The name of the connection factory to use.
perfListener
This example will run a basic performance test. It will consume messages from a destination according to the parameters specified. Before running start the example and wait for it to start, you will see READY!!! when the listener has started. The number of messages, delivery mode etc can be configured as follows:
ant -Dmessage.count=20000 -Ddelivery.mode=PERSISTENT perfSender
If running the sender and listener seperately make sure to run the listener with the parameter drain.queue set to false
The following parameters can be configured:
message.count
The number of messages to consume.
message.warmup.count
How many messages to warm up for. Because of the JIT compiler maximum throughput will take a little while to kick in.
sess.trans
Whether or not the session is transacted.
sess.trans.size
If the session is transacted the batch size to commit.
sess.ackmode
The acknowledge mode to use, DUPS_OK or AUTO_ACK. Ignored if the session is transacted
drain.queue
Whether or not the listener will empty the queue before starting.
queue.lookup
The name of the queue to use.
cf.lookup
The name of the connection factory to use.
There are also some ant targets for running the perf sender and listener in different modes:
perfNonTransactionalSender
perfTransactionalSender
perfAutoAckListener
perfDupsOKListener
perfDupsOKListener
The messaging examples demonstrate the use of the messaging core API and also how to create and run an embedded instance of JBM. The following examples are available:
to run a specific example open up a shell or command prompt and navigate into the examples/messaging directory and run the command ant followed by the example name, as follows
ant simpleClient
SimpleClient
This example shows a simple send and receive to a remote queue using a core messaging client. The server will need to be running for this example.
SSLClient
This example shows a simple send and receive to a remote queue using SS. The server will need to be running and configured to use SSL for this example. Refer to the configuration chapter for details on how to do this.
simpleExample
This example shows how to create an embedded JBM server using the core API. The server must not have been started before running this example.