Is there a way to have an ESB service do some one time initialisation? For example, I have a service that I want to develop that I want to initially bootstrap itself by contacting an external web service to get initialisation information. Theoretically, if the ESB service somehow keeps state, I only need to do this once.
When an ESB service is first hit via a listener, does that instantiate the Service and does it stick around for future requests? or does it get instantiated every time a request comes in?