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From "Benedikt Ritter (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (BEANUTILS-425) Support customization of introspection mechanism
Date Sat, 16 Mar 2013 16:08:12 GMT

    [ https://issues.apache.org/jira/browse/BEANUTILS-425?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13604313#comment-13604313
] 

Benedikt Ritter commented on BEANUTILS-425:
-------------------------------------------

Hi Oliver,

for testing the exception handling in introspect, I see two possibilities:
 * create an instance delegator that the call to the introspector can be delegated to. In
the test setup simply inject a mock that throws an exception
 * create a protected method that delegates to Introspector. In the test case create a private
static TestBeanIntrospector that overrides the method and throws an exception.

Now both solutions are a bit tricky to implement with the current design, because of the singleton
pattern. For now I think we are good to go with the 82% coverage. 
                
> Support customization of introspection mechanism
> ------------------------------------------------
>
>                 Key: BEANUTILS-425
>                 URL: https://issues.apache.org/jira/browse/BEANUTILS-425
>             Project: Commons BeanUtils
>          Issue Type: New Feature
>          Components: Bean / Property Utils
>    Affects Versions: 1.8.3
>            Reporter: Oliver Heger
>            Assignee: Oliver Heger
>            Priority: Minor
>         Attachments: beanutils-425.patch
>
>
> So far BeanUtils can cope with properties conforming to the Java Beans specification.
In some situations it makes sense to relax this requirement and allow the detection of other
forms of get and set methods as well.
> For instance, fluent APIs have become popular. Here you have a set method which does
not return *void* and thus violates the Java Beans specification. Objects using such an API
cannot be dealt with by BeanUtils currently.
> For reasons of backwards compatibility the current behavior should remain the default.
But it would be cool if there was an option to set a custom introspection policy. The policy
would be invoked during property discovery and can decide which properties to include or not.

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