[jira] Commented: (LANG-395) annotations based builders

["Vincenzo Vitale (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/LANG-395?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12727165#action_12727165 ] 

Vincenzo Vitale commented on LANG-395:
--------------------------------------

Have a look here:

http://code.google.com/p/simplestuff/

I think it would be easy to port the code (after some review) to commons lang.


Cheers,
V.

> annotations based builders
> --------------------------
>
>                 Key: LANG-395
>                 URL: https://issues.apache.org/jira/browse/LANG-395
>             Project: Commons Lang
>          Issue Type: New Feature
>            Reporter: Jörg Gottschling
>             Fix For: 3.0
>
>
> What about enabling the builders (ToStringBuilder, EqualsBuilder, etc.) that use reflection to use annotations to find the field to include?
> Something like:
> ToStringBuilder.annotationsBasedToString(Object object, Class<Annotation> class, Class<?> reflectUpToClass)
> One could use the JPA-Annotation @ID for example, espescially for Equals- and HashCodeBuilder. There should also be some default annotation comming with LangTwo.
> Usage:
> public class User
> {
>   @StringRepresentation
>   @EqualsAndHashCode
>   private String name
>   @StringRepresentation
>   private String email;
>   private String password;
>   // ...
>   @Override
>   public String toString()
>   {
>     return annotationsBasedToString(this);
>   }
>   @Override
>   public boolean equals(Object other)
>   {
>     return annotationsBasedEquals(this, other);
>   }
>   @Override
>   public int hashCode()
>   {
>     return annotationsBasedHashCode(this);
>   }
> }

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