The update action (PUT method) is not appropriate because PUT is suppose to be idempotent. The only this would be possible is if the state was sent as part of the representation. This is inconsistet with an “event”. Is this correct? Correct. Since, events aren’t idempotent, then the a POST must be used. But, to … Read more
Workflow and state machines are defined nicely on wikipedia. I’m guessing you’re getting the term State Machine Workflow from this page. .NET seems to support different ways of modeling workflows (which are just some defined steps in a complex human task). A state machine (which is a map of states with transitions between them) would … Read more
I suggest using State Machine Compiler, it will output Objective-C code. I have had good success in Java and Python using this. You shouldn’t be writing state machine code by hand, you should be using something to generate the code for you. SMC will generate clean clear code you can then look at if you … Read more
I’m not sure I understand if there is a difference between a finite state machine and a state machine? Am I thinking about this too hard? Yes, you are thinking about it too hard. 🙂 It depends on context. Obviously, taken literally, the term “finite state machine” indicates a finite number of states, while “state … Read more
As I work through this, I’ll try to list some of the things I’m finding. Most will likely be a bit superficial from an analysis standpoint (especially since I’m new to both frameworks), but hopefully it will help someone out. Stateless Pros open source syntactically concise and easy to read pretty good examples in the … Read more
The particular code sample you are looking at involves a series of transformations. Please note that this is an approximate description of the algorithm. The actual names used by the compiler and the exact code it generates may be different. The idea is the same, however. The first transformation is the “foreach” transformation, which transforms … Read more
There are two main libraries for a finite state machine in js : 1/ Machina: Very well documented, examples, supports two JavaScript message bus providers out of the box: postal.js and amplify.js. 2/ Javascript State Machine: simpler and easier to use, perfect for “basic” usages.
Why not have events call the right callback on state directly? public enum State { abstract State processFoo(); abstract State processBar(); State processBat() { return this; } // A default implementation, so that states that do not use this event do not have to implement it anyway. … State1 { State processFoo() { return State2; … Read more
Ragel is a state machine language. IOW, it’s not a language that also supports state machines, it’s a language that only supports state machines. Which obviously means that it’s not Turing-complete, but who needs that? More precisely, Ragel is a state machine compiler, which takes a description of a state machine in a regexp-like language … Read more
Python 2.7+, 201 192 187 181 179 175 171 chars PS. After the problem was relaxed (no need to output state line on empty input), here is new code that’s notably shorter. If you are on version <2.7, there is no dict comprehension, so instead of {c+o:s for o,c,s in i[1:-1]} try dict((c+o,s)for o,c,s in … Read more