The state tag has no wiki summary.
0
votes
2answers
101 views
Memento with optional state?
EDIT:
As pointed out by Steve Evers and pdr, I am not correctly implementing the Memento pattern, my design is actually State pattern.
Menu Program
I built a console-based menu program with multiple ...
0
votes
1answer
163 views
Java: How to manage UDP client-server state
I am trying to write a Java application that works similar to MapReduce. There is a server and several workers. Workers may come and go as they please and the membership to the group has a soft-state. ...
6
votes
4answers
423 views
Functional Programming: right ideas about concurrency and state?
FP proponents have claimed that concurrency is easy because their paradigm avoids mutable state. I don't get it.
Imagine we're creating a multiplayer dungeon crawl (a roguelike) using FP where we ...
0
votes
1answer
96 views
How to implement session state in a backend web application?
When using a non-MVC service-oriented/Interactor pattern approach to decoupled system architecture, how is session state implemented?
I've been thinking of building the frontend of an application ...
2
votes
3answers
115 views
In Scheme, what is formally a program's state?
I think i've understood more or less what a parsed Scheme program looks like (a binary tree with atomic values on the leaves, if i have understood correctly). Can anybody please define to me, or give ...
4
votes
2answers
258 views
What is the preferred way of communicating between applications on the same system?
I'm designing a system that is built on several small applications written in python, some of these will be services and others will be programs that only run during special situations. What I need to ...
3
votes
1answer
292 views
script engine with no global environment (java)
I am curious about how global variables are handled by script engines. I am looking for a script engine that does not preserve the state of global variables upon invocation. Are there such engines out ...
2
votes
1answer
136 views
Validation and Error Generation when using the Data Mapper Pattern
I am working on saving state of an object to a database using the data mapper pattern, but I am looking for suggestions/guidance on the validation and error message generation step (step 4 below). ...
8
votes
7answers
208 views
How does a “Variables introduce state”?
I was reading the "C++ Coding Standards" and this line was there:
Variables introduce state, and you should have to deal with as little state as possible, with lifetimes as short as possible.
...
2
votes
2answers
262 views
I don't understand the definition of side effects [duplicate]
Possible Duplicate:
What is a “side effect?”
I don't understand the wikipedia article on Side Effects:
In computer science, a function or expression is said to have a side effect if, in ...
4
votes
3answers
315 views
Clojure state and persistence
I'm learning Clojure to see if it's something I can leverage at my current job, and more importantly, how I can convince my bosses that Clojure has a 'killer feature' over java that makes it worth the ...
-1
votes
1answer
118 views
Are there any valid ways of eliminating/reducing state?
For definitions and examples of "state", see: http://en.wikipedia.org/wiki/Program_state , http://en.wikipedia.org/wiki/Finite_state_machine , http://en.wikipedia.org/wiki/State_diagram
A diagram ...
0
votes
1answer
225 views
Implementing a “state-machine” logic for methods required by an object in C++
What I have: 1 hypothetical object/class + other classes and related methods that gives me functionality.
What I want:
linking this object to 0 to N methods in realtime on request when an event is ...
7
votes
4answers
265 views
Definition of “state”
What is a good way to define "state", as in state variable or state machine, to a new (previously non) programmer? What are some good ways to explain why this concept is useful for writing software? ...
4
votes
2answers
212 views
Good ways to jump to a particular state in a yielding stateful function?
I'm working on some embedded code using C. Various pieces of functionality need non-blocking stateful functions, which are mostly implemented using a switch on various states. For example, a modem ...
10
votes
1answer
550 views
UI patterns in functional languages
I would like to start fiddling with ClojureScript, but I am puzzled about some points. My problem is what is a good way to deal with state changes coming from user interaction, when you trying to work ...
