I have this class, let\'s say, Foo. It extends JFrame and is a singleton. That being said, it has two static fields: 1) an instance of Foo and 2) a Color.
I have the folowing question: What is the prefered way to use the 开发者_Python百科status in code, an enum OR singleton?
I\'m wondering why the EventArgs constructor isn\'t protected as it seems like waste (although tiny) to allocate resources for an empty object for every event, especially when there is a singleton Eve
I\'ve created a singleton WCF web service that runs a background thread for entire time while it\'s hosted. First method starts a function in a background thread that checks shared data and the other
I have a specific class in my project that used for load and hold everything else like libraries and modules.
I\'ve got a problem with a singleton implementation. It seems an objet I want to hold in my singleton gets corrupted and I can\'t figure why. Any help appreciated.
I want to create something like \'BundleLocal\' variables, just like ThreadLocal variables, but instead of looking them up by Thread.currentThread() I need to look them up by bundle context.
I have a singleton that depends on another class so I\'d like to inject this dependency in order to make it unit-testable. Since there\'s no way to use constructor injection on the singleton I g开发者
Whi开发者_StackOverflow中文版ch solution should be generally preferred, considering that the change is source compatible?
This is a sample of the basic pattern I\'ve been using for a Factory that returns a thread-safe Singleton:
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