Best way to replace dependencies ?

[Kevin Burton]

Is there a good pattern to *replace* dependencies with new bindings?

During our init, I have the need to replace a standard output logger, with a log4j logger... 

It only needs to happen once.

I was thinking of having some sort of ReplaceableProvider that has a set() method and uses an AtomicReference... 

[Nate Bauernfeind]

Sounds like this depends on exactly what behavior you want.

You can overwrite bindings in a module with an Override's module. See: http://stackoverflow.com/questions/483087/overriding-binding-in-guice

You could use a PrivateModules to divide your object graph to control which chunks get which logger. See: http://google.github.io/guice/api-docs/latest/javadoc/index.html?com/google/inject/PrivateModule.html

You could use an OptionalBinder setting the default to your standard logger. http://google.github.io/guice/api-docs/latest/javadoc/com/google/inject/multibindings/OptionalBinder.html

Of course, I might completely miss your question.

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