![]() Implementing the Strategy Pattern via Java Enum Application Name: SwitchToStrategyEnumĪ typical case involves the existence of a Java enum and one (or more) switch statements based on it. You could create a ResponseHandler interface with three implementations, one for each branch of your if/else construct. ![]() For that and other more complex cases, take a peek into Springs ReflectionUtils class. Alas, it seems private fields can not be read in this fashion. Learn JAVA and Start your Free Trial today! 1. Unique rules to find Bugs, Vulnerabilities, Security Hotspots, and Code Smells in your JAVA code. Of course, avoiding reflection altogether is by far the best approach, but when it is required, this is a nice way not to have to deal with the ugly reflection code directly. In this article, we will pick up some switch examples, and we will try to provide several alternatives that eliminate or hide the switch statements. When your app calls a method from the Java Native Interface (JNI) When your app looks up code at runtime (such as with reflection). ![]() This is especially true when we deal with switch nested in large methods, interdependent switches and large switches (with many instructions under cases and/or many case branches). In the article Specification Pattern, for the sake of sanity, I didn’t mention about an underlying component to nicely make that thing happen. Is a well-known fact that switch statements and SOLID principles-Single Responsibility Principle and Open-Closed Principle-are not good friends and usually we can choose better alternatives than switch.
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