MDB application - how often get the constructor called?
Hello,
I have an MDB application. When I look in to the log file, I see that the constructor of the MDB get called for each incoming message.
Well, I expected that the constructor get called once when the MDB is created and later only onMessage method is called.
The MDB goes to a pool after finishing the job and comes out of the pool when needed (without necessity to call the constructor).
But I see following in the log file:
grep 'The constructor of mdb was executed' myapp.log | wc -l
1563
I printed some runtime statistics, too
"ejb3" => {
"entity-bean" => undefined,
"message-driven-bean" => {"MyMDB" => {
"component-class-name" => "MyMDB",
"declared-roles" => [],
"delivery-active" => true,
"execution-time" => 1242733L,
"invocations" => 1997L,
"methods" => {"onMessage" => {
"execution-time" => 1242733L,
"invocations" => 1997L,
"wait-time" => 9563L
}},
"peak-concurrent-invocations" => 10L,
"pool-available-count" => 40,
"pool-create-count" => 10,
"pool-current-size" => 10,
"pool-max-size" => 40,
"pool-name" => "mdb-strict-max-pool",
"pool-remove-count" => 0,
"run-as-role" => undefined,
"security-domain" => "other",
"timers" => [],
"wait-time" => 9563L,
"service" => undefined
}},
There is obviously a pool and the MDB are is use, but the constructor get called as well.
Am I totally wrong, or did I missed something in the configuration?
Maybe you might help me and explain the issue, thanks
I use Wildfly 8.1