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Cloning objects (Read 579 times)
Bejoscha
Cloning objects
Apr 20th, 2010, 12:21am  
What is the correct syntax to create an exact clone-object of any object? I've just realized that using the = sign to assign one object to the other seems to pass the reference to the identical object rather than copying it's values.
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PhiLho 
Re: Cloning objects
Reply #1 - Apr 20th, 2010, 1:11am  
There is no correct syntax...
Cloning an object is complex, and highly depends on the application: if an object refers to other objects, should these objects be cloned as well or just their reference copied to the new object
There is a clone() method defined for all Java objects, but it precisely does a shallow copy, ie. all sub-objects are just reference to original's sub-objects. Beside, it is advised to avoid clone in favor of copy constructors and static factory methods (see the links in the given page).
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Bejoscha
Re: Cloning objects
Reply #2 - Apr 20th, 2010, 4:35am  
Hmm. Thanks. I've never thought it through but I see the point now. So I have to make my code longer then :c)
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