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Is the Command Pattern the same as the Dependency Injection pattern?

 
Greenhorn
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Hi,
I was just wondering if there is any similarity between the Command and the Dependency Injection patterns?

Thanks
KrishRads
 
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It's hard to compare them, because Dependency Injection is much more high level than Command.

The most obvious similarity is that they make use of polymorphism, of course. Other than that, I'd say that they solve rather orthogonal problems.
 
Ranch Hand
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I briefly read dependency injection in one of the artical about introduction to Spring. My understanding is that the object references are given when an object is created. If an object references are needed conditionally, how do object references are given?
 
KrishRads
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Thanks a lot for your swift response.If I may ask another question,is there another pattern which can do the same job as that of the Factory Pattern?

Thanks
KrishRads
 
Ilja Preuss
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Originally posted by KrishRads:
If I may ask another question,is there another pattern which can do the same job as that of the Factory Pattern?



It would probably be better to start a new thread for this, so that the discussion doesn't get too confusing...
 
ranger
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"KrishRads"-
Welcome to the JavaRanch! Please adjust your displayed name to meet the

JavaRanch Naming Policy.

You can change it

here.

Thanks! and welcome to the JavaRanch!

Mark
 
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