Share java object between two forms using Spring IoC

Question

I want to share java object between two forms using Spring IoC. It should acts like Registry:

Registry.set("key", new Object());
// ...
Object o = Registry.get("key");
// ...
Registry.set("key", new AnotherObject()); // rewrite old object

I tried this code to register bean at runtime:

applicationContext.getBeanFactory().registerSingleton("key", object);

but it does not allow to rewrite existing object (result code for checking and deleting existing bean is too complicated)...

PS I am Java newbie, so mb I am doing it wrong and I should not use IoC at all... any help is appreciated...

Answer 1

I don't know why you feel like you have to register the class at runtime. Why not just configure it in the factory and inject it like any other POJO?

Be careful with a shared registry like this. It's begging for thread safety. If you're new to Java, this is an area that fraught with peril.