How does the Strategy Pattern work? - Stack Overflow
2008年9月18日 · The strategy pattern is useful for situations where it is necessary to dynamically swap the algorithms used in an application. The strategy pattern is intended to provide a means to define a family of algorithms, encapsulate each one as an object, and make them interchangeable. The strategy pattern lets the algorithms vary independently from ...
java - Real World Example of the Strategy Pattern - Stack Overflow
In computer programming, the strategy pattern (also known as the policy pattern) is a behavioral software design pattern that enables selecting an algorithm at runtime. Instead of implementing a single algorithm directly, code receives run-time instructions as to which in a …
java - Strategy Pattern with different parameters - Stack Overflow
2013年11月14日 · Congratulations, you discovered one of the shortcomings of strategy pattern: The strategy pattern can be used to host different algorithms which either have no parameters or the set of parameters for each algorithm is the same. However, it falls short if various algorithms with different sets of parameters are to be used.
java - Duck example strategy pattern - Head first design pattern ...
2015年1月11日 · It would be better design to realize that, the way the (made-up) problem is considering ducks, a rubber duck is not a duck -- it doesn't fly, it doesn't swim (unless you include floating), etc.
oop - Strategy pattern with generics in Java - Stack Overflow
2011年11月14日 · Strategy pattern with generics in Java. Ask Question Asked 13 years, 1 month ago. Modified 13 years, 1 ...
Java, Strategy Pattern, Generics and return type
2016年8月26日 · The strategy pattern allows a kind of black box behavior. You have a defined input and a defined output but what happened in between decides the strategy (which should be interchangeable). As you want to change the output of your method I think that strategy pattern is not the right choice here –
java - Strategy pattern with spring beans - Stack Overflow
2013年7月13日 · Good strategy pattern example. Upvote. Nitpick, you most likely only need "Map<String, MealStrategy> mealStrategies;" and not the new'ing it up, since the collection is injected.
java - Strategy Design Pattern- choosing between strategies with ...
2011年7月7日 · Strategy Pattern Explained-OO Design. I am using the strategy pattern twice with one group of four strategies and one group of three. In each case I am deciding which strategy to use by maintaining a decaying counter. if the strategy the software decides to use is successful then the counter is incremented by one.
java - Difference between Strategy pattern and Command pattern
2011年1月29日 · The Strategy pattern, on the other hand, is used to specify how something should be done, and plugs into a larger object or method to provide a specific algorithm. A Strategy for sorting might be a merge sort, might be an insertion sort, or perhaps something more complex like only using merge sort if the list is larger than some minimum size.
Combining Strategies in a Java Strategy Pattern
2014年1月7日 · Examples below are shamelessly ripped off of java.dzone.com, and modified to suit my needs: Our interface: public interface CompressionStrategy { public void compressFiles(ArrayList<File>