Splitting a class

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Roedy Green - 15 Jul 2005 05:20 GMT

Is there some refactoring tool to use when you want to split a class
in two, so that you have a core set of methods and an extended set or
perhaps even two independent classes.

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Roland - 15 Jul 2005 09:30 GMT

> Is there some refactoring tool to use when you want to split a class
> in two, so that you have a core set of methods and an extended set or
> perhaps even two independent classes.

In Eclipse, you can use 'Refactor -> Pull Up' and 'Refactor -> Push
Down' to move members (fields and methods) up and down the class hierarchy.

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Tim Tyler - 15 Jul 2005 22:17 GMT

Roedy Green <look-on@mindprod.com.invalid> wrote or quoted:

> Is there some refactoring tool to use when you want to split a class
> in two, so that you have a core set of methods and an extended set or
> perhaps even two independent classes.

You can drag groups of selected methods between classes in the
Eclipse Package explorer.

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Wibble - 16 Jul 2005 01:19 GMT

> Is there some refactoring tool to use when you want to split a class
> in two, so that you have a core set of methods and an extended set or
> perhaps even two independent classes.

Lol, now you're asking questions where eclipse is the answer...

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Roedy Green - 16 Jul 2005 11:30 GMT

>Lol, now you're asking questions where eclipse is the answer...

Pull up never seems to be applicable since I am usually splitting off
a sibling class. there is no hierarchy to push/pull to.

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Dale King - 16 Jul 2005 21:29 GMT

>>Lol, now you're asking questions where eclipse is the answer...
>
> Pull up never seems to be applicable since I am usually splitting off
> a sibling class. there is no hierarchy to push/pull to.

I agree and have often wished for a "Create superclass" refactoring to
create an empty super class that you can then "pull-up" to. It should
also support creating superclasses for a set of classes so that all are
then subclasses of the same superclass.

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Dale King

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Splitting a class

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