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https://issues.apache.org/jira/browse/BEANUTILS-226?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12501046
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Baptiste MATHUS commented on BEANUTILS-226:
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Hi all, Hi Eric,
I'm very interested into automatically instantiating beans when trying to set
them. In fact, as we directly use our entities inside the web-tier, there's a
lot of boilerplate code to write just to get nested null things or setting
them.
Imo, those things should at least be configurable:
* returning null when "a.b" is requested and a is null
* automatically instantiate a and set b is "a.b" is set to something
I know it's a long time this bug has been submitted, but the patch seems to be
missing some InstantiatorUtils class. I guess this has been forgotten, so if by
chances, you still got some of the code around, I'd be interested into using
it, it would prevent me from writing this code myself :-).
> [beanutils] Instantiate property if null in form bean
> -----------------------------------------------------
>
> Key: BEANUTILS-226
> URL: https://issues.apache.org/jira/browse/BEANUTILS-226
> Project: Commons BeanUtils
> Issue Type: Improvement
> Components: Bean / Property Utils
> Environment: Operating System: other
> Platform: All
> Reporter: Emmanuel Boudrant
> Priority: Minor
> Fix For: LATER THAN 1.8.0
>
> Attachments: auto-instantiate-smart-converters.txt,
> extensible-bean-utils.txt
>
>
> Hello,
> When nested property used inside a form bean, example :
> a class Date composed by 3 String.
> if the property is null, PropertyUtils.lookup return a null value.
> Is it possible to change this comportement by returning, if property is null,
> the property instanciated by default constructor, like the comportment of the
> jsp tag <jsp:useBean ... >
> Else I can't write/read the nested property date.day if date is null, Struts
> throw a exception.
> -Emmanuel
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