Hi, we're currently looking into the possibility of integrating our Java JPA backend with our mod_perl front end/business layer using Inline::Java. I've been pretty successful testing various features that are required and have been pretty happy so far, though I have a few questions that I'm not really clear about, so I was hoping someone can help me out here...
1. My understanding is that Inline::Java doesn't really serialize the whole object graph and there are no features to allow it to say serialize the graph before transmitting the Inline::Java object over the wire, right? I understand that it's more of a proxy and each method call and property access call is proxied over to the JVM. Is this correct? 2. With #1 in mind, I'm a bit concerned about the stability and scalability of the Inline::Java server. Being that it's written from scratch and no existing server was reused, is there a reason I should be concerned about the scalability of this in a highly concurrent environment? Is the server piece thread safe? I will be going over the source code in the next few weeks, but wanted to get some input. 3. With JNI being the more efficient deployment option, the concern is how it functions in the mod_perl environment. With mod_perl 1 and mpm each process would embed the JVM and it's heap within each apache child process? This is of course not an option, since then we have to worry about memory constraints as well as possible XA, though I can't think of any current requirement of transactions spread across multiple processes. Is there a way to only embed the JVM within the parent process and possibly use IPC for communication? I'm not that familiar with JNI and it's requirements, so I'm just ranting here. 4. We're using JSE 1.5. Is there any reason to believe that we'd run into any problems? I saw in README that it should work for the most part and it seems to work with JPA, annotations and generics, but I'd like to get someone with some experience using it with JSE 1.5 to comment a bit more. I guess if someone can just give some recommendations as to what would be the more stable/scalable deployment scenario for Inline::Java/mod_perl application. Thanks and sorry for the lengthy message. Ilya Sterin
