I have implemented it locally here if you wish to have a look at both the 
implementation and its usage:
https://github.com/xwiki/xwiki-rendering/commit/bf7e97690685a7864eae592a508ba1f0bbb1a574

Thanks
-Vincent

On Mar 23, 2012, at 7:55 AM, Vincent Massol wrote:

> Hi devs,
> 
> I've already sent a proposal for EqualsBuilder and HashCodeBuilder (see 
> http://markmail.org/message/ewbizvcx4zj432il) but only Sergiu answered. So 
> resending as a VOTE and adding ToStringBuilder
> 
> For ToStringBuilder the idea is to create a XWikiStyle (see 
> https://gist.github.com/2164507 )
> And then to use it as in:
> 
>    @Override
>    public String toString()
>    {
>        ToStringBuilder builder = new ToStringBuilder(this, new XWikiStyle());
>        builder = builder.append("Typed", isTyped())
>            .append("Type", getType().getScheme());
> 
>        if (getReference() != null) {
>            builder = builder.append("Reference", getReference());
>        }
> 
>        if (!getBaseReferences().isEmpty()) {
>            builder = builder.append("Base References", getBaseReferences());
>        }
> 
>        Map<String, String> params = getParameters();
>        if (!params.isEmpty()) {
>            builder = builder.append("Parameters", params);
>        }
> 
>        return builder.toString();
>    }
> 
> For the record this generates stuff like the following which is based on our 
> current practices:
> "Typed = [true] Type = [doc] Reference = [reference] Base References = 
> [[baseref1], [baseref2]] Parameters = [[name1] = [value1], [name2] = 
> [value2]]"
> 
> The rationale for using ToStringBuilder is:
> * It reduces our boilerplate code by at least 50%
> * It makes all our toString implementation consistent and easy to write
> 
> Now all that remains is to decide where to put the XWikiStyle class. Of 
> course it has to go in XWiki Commons somewhere but where?
> 
> I'm proposing several possibilities:
> * xwiki-commons-logging (existing module): the rationale would be that the 
> toString() is usually used for logging. The package would be 
> org.xwiki.logging.text. I'm wondering if we should make this class internal 
> too.
> * xwiki-commons-text (new module): I'm not sure what else we would put in 
> there
> * xwiki-commons-util (new module): I don't like to have a module with no 
> specific domain but it could be temporary till there are more stuff that make 
> a domain
> 
> So here's my +1. My only doubt is where to put it. Right now I'd be tempted 
> to put it in  xwiki-commons-logging so that we don't create a new module.
> 
> Thanks
> -Vincent

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