Questions tagged [lazy-initialization]
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37 questions
1 vote
3 answers
211 views
Ensuring run-once behavior in a multi-threaded environment via volatile lambdas?
I'm coding an enum strategy pattern where one of the strategies makes use of an ScheduledExecutor: class ControllerImpl { //... boolean applyStrat(StratParam param) { getStrat().apply(...
- 355
2 votes
1 answer
1k views
Is it a good idea to use a Lazy wrapper type to encapsulate lazy initialization in Java?
In our code base, we have several static or instance members that we would like to initialize lazily. If the initialization cannot yield null, It's easy to implement. Otherwise, one could use an ...
- 151
2 votes
1 answer
142 views
Modelling seats of a table in a social game
Assume we want to model a table where players can sit down to get together to play a game (card games, dice games, ...). Assume a few properties associated with each seat class Seat { public int ...
- 169
1 vote
2 answers
518 views
C++ tactics / data structures / design patterns to avoid or postpone unnecessary object creation?
A couple of months ago I wrote a C++ program for computational mathematics that was supposed to compete with a highly optimized C code. After a while I did manage to get it fast enough to beat the C ...
- 222
6 votes
1 answer
1k views
Is it better to use lambda functions or boolean variables to record state
I have heard some people claiming that boolean state variables are generally bad and should be avoided when possible. Apparently in many cases it is possible to put state into lambda functions, ...
- 179
0 votes
1 answer
212 views
In what other locations besides infinite streams and infinite lists is memoized lazyness useful?
Haskell is one of the few non-strict languages out there. In his paper Why Functional Programming Matters, John Hughes uses (memoized) lazy evaluation (as well as higher-order functions) to implement ...
- 4,947
4 votes
1 answer
1k views
Webpack and Lazy Load for large-scale Web Application
Background I am trying to develop with Webpack and JavaScript. Webpack would bundle all source code into one single file. When application becomes large, the file would be very large and cause ...
- 349
8 votes
1 answer
1k views
Is there a name for the counterpart of the lazy loading pattern?
Definition of the lazy loading pattern from Wikipedia: Lazy loading is a design pattern commonly used in computer programming to defer initialization of an object until the point at which it is ...
- 2,016