All you have to do is to annotate your transactional methods with @atomic, i.e.:

@Atomic
public void myTransaction(){
...
}

Then all you need to in order to run it, is to add to your java command line: -javaagent:bin/deuceAgent.jar

e.g. java -javaagent:bin/deuceAgent.jar -cp my.jar myMain

Using this javaagent Deuce is doing an Online Instrumentation, meaning instrumenting the application bytecode in runtime.

Deuce support two mechanism to control the Transaction flow:

In few case Online instrumentation is not good enough due to some limitation (e.g. classes that are loaded in the boot classloader).

Therefor, Deuce provides an offline mode e.g.

 

 

This will instrument my.jar and create a new instrumented out_my.jar.