HingletonDescriptionDerived from “helper singleton,” a Hingleton is a class which turns another class into a singleton by enforcing that class's singularity. The offending class is the Hingleton, which "hingles" the other class. CriteriaHingletons have a public static method that returns an instance of a non-primitive object, and they have at least one private static non-final field of the same type. Examplepublic class Hingleton {
private static Foo instance;
public static Foo getInstance() {
if (instance == null) {
instance = new Foo();
}
return instance;
}
}(Hingleton hingles Foo) For the purposes of detection, we are not interested in whether or not there is: - a private constructor to either class
- synchronized around the 'new instance' logic
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syncronized missing? huh