BeanUtils.cloneBean() deep copy

Question

If all the objects within the bean implement Serializable interface, will BeanUtils.cloneBean() do a deep copy?

Vikas Chowdhury · Answer 1 · 2016-09-14T10:04:13.030

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Use SerializationUtils.clone method from the Apache Commons Lang for the deep copy. It copies the entire class hierarchy.

SerializationUtils.clone(object);

edited Sep 14 '16 at 10:04

answered Nov 06 '12 at 11:47

Vikas Chowdhury

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It should be noted however that this method comes with a much steeper performance penalty. – Thihara Apr 16 '14 at 05:56

score 9 · Accepted Answer · edited Aug 17 '17 at 16:11

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No, cloneBean() does shallow copy only. If you want deep copy. You may refer this link which has technique to do deep copy.

edited Aug 17 '17 at 16:11

Jan Nielsen

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answered Feb 13 '12 at 16:29

kosa

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Deep clone over XML - not sure if people actually want that, the approach listed below is a bit better, since it does not use XML but still exploits serialization. – siyb Jul 01 '16 at 12:14

score 1 · Answer 3 · answered Jul 22 '19 at 06:22

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There is also another java library which supports both shallow cloning and deep cloning. It offers deep cloning without the need to implement Serializable.

Here

answered Jul 22 '19 at 06:22

dilanSachi

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Link-only answers aren't helpful in the long term, because links tend to become invalid over time. – toolforger Dec 12 '20 at 11:46
@toolforger I understand the issue. But what I pointed to was a Github repo and I cannot express it in here in any other way. – dilanSachi Dec 12 '20 at 16:17
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The common advice is to at least mention the point of the link, so people know whether it's worth their time to follow the link. It's even better if you can explain what they're doing. Or you can highlight how it's different from other answers (which will give yourself more insight so it's worth doing more than others to follow the link). Finally, there's always the option to remove the answer, because it won't help anybody if it does not interest anybody. – toolforger Dec 13 '20 at 22:42
@toolforger actually I have mentioned what the link contains and it's difference. It helped me in my implementation so I thought of mentioning here. – dilanSachi Dec 16 '20 at 14:49
You don't mention the library's name (it may be moved to another link), nor the library's approach. – toolforger Dec 17 '20 at 21:26

BeanUtils.cloneBean() deep copy

3 Answers3

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