Multiple environment instances in the same process with DB_REGISTER flag

Question

Hello,
I'm having two applications in the tomcat that should use the same environment. I have the DB_REGISTER flag set, and since tomcat has a java single process for all applications, I can't open an environment in the second application since I get a "DB_REGISTER limits processes to one open DB_ENV handle per environment" error message. This is understandable. So my question is: is there a way to "join" the first opened environment instance. Or do I have to run applications in two different processes, i.e. using 2 tomcat instances?
Thanks,
Vyacheslav

Answer 1

Thanks for reply Sandra.
I have a follow-up question. Is it possible to get an environment instance if it's already opened in the process. For instance like:
Application1 in the tomcat process:
Environment env  = new Environment(envHome, envConfig) //openning an env under "envHome" directoryApplication2 in the same tomcat process:
Environment env;
try{
  env  = new Environment(envHome, envConfig) //openning an env under "envHome" directory
} catch (DbException e) {
  if(isAlreadyOpenedException(e)) { //checking that our exception is "DB_REGISTER flag permits only 1 opened env handle per process"
     env = Enviroment.getEnvironmentHandleFromTheSameProcess(); //here I'm improvising. Is there any similar method?
} So my question is if it's something that is possible.
Thanks in advance,
Vyacheslav