How to replace a component via an instance of PicoContainer?

Question

I am working in an environment where I do not control the startup of the PicoContainer, it is provided to me like this:

ApplicationManager.getApplication().getPicoContainer().getComponentInstanceOfType(Xyz.class);

My question is how I can replace a component via the PicoContainer?

Can I get a reference to the DefaultPicoContainer or a MutablePicoContainer somehow ?

Or can I just cast PicoContainer to MutablePicoContainer ?

Note: using "old" version, picocontainer 1.3

Thanks for any tips.

score 0 · Accepted Answer · answered Sep 13 '13 at 13:59

I found it was as simple as to cast to MutablePicoContainer :

MutablePicoContainer picoContainer = (MutablePicoContainer) ApplicationManager.getApplication().getPicoContainer();
picoContainer.unregisterComponent("a.b.c");
picoContainer.registerComponentImplementation("a.b.c", MyComponent.class);

I guess the default PicoContainer was provided as a kind of "read-only" container.

How to replace a component via an instance of PicoContainer?

1 Answers1