Factory template in java

Question

I worked with java code that supposedly uses the Factory pattern, but I'm not completely convinced of the pattern.

My code does this:

// the factory
class SomeFactoryImpl {
   Set<SomeClass> getSomeListOfObjects();
}

And somewhere in the code:

{ ...
    SomeFactory factory = new SomeFactoryImpl();
    Set<SomeClass> list = factory.getSomeListOfObjects();
}

What I'm thinking about, if Factory classes do not have a static create () method, then you need to create a factory instance, which IMO should be as complex as creating an instance of the object itself.

I do not consider it an argument that such a Factory can return collections of created objects, is good enough. I believe there may be cleaner workarounds if you need to create a Factory instance before actually creating objects from the factory.

I feel that it is better if the create method is a static method of the Factory class. But I am also sure that my opinion is not entirely “right.”

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Answer 1

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{ ...
    SomeFactory factory = new SomeFactoryImpl();
    Set<SomeClass> list = factory.getSomeListOfObjects();
}

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    this.factory = someFactory;
}   

...

{ ...
    Set<SomeClass> list = factory.getSomeListOfObjects();
}

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