[infinispan-dev] Sequential interceptors API

Hi, I would like to encourage you to play with the (relatively) new API for sequential interceptors, and voice your comments - especially you corish devs, and Galder who has much experience with async invocations and that kind of stuff from JS-world. I am now trying to use the asynchronous methods only (the forkInvocationSync() is only temporary helper!); Dan has made it this way as he wanted to avoid unnecessary allocations, and I welcome this GC-awareness, but regrettably I find it rather hard to use, due to its handler-style nature. For the simplest style interceptors (do this, invoke next interceptor, and process result) it's fine, but when you want to do something like: visitFoo(cmd) { Object x = null; if (/* ... */) { x = invoke(new OtherCommand()); } invoke(new DifferentCommand(x)); Object retval = invoke(cmd); return wrap(retval); } I find myself passing handlers deep down. There is allocation cost for closures, so API that does not allocate CompletableFutures does not pay off. I don't say that I could improve it (I have directed my comments to Dan on IRC when I had something in particular), I just say that this is very important API for further Infinispan development and everyone should pay attention before it gets final. So please, play with it, and show your opinion. Radim -- Radim Vansa <rvansa(a)redhat.com&gt; JBoss Performance Team