[xwiki-devs] How can we used Computed Field?

Hello *How can we used Computed Field?* In XWiki Data Model page [1] I found: *Computed pseudofield* new in 4.2M3 Allows to create a pseudo field for which the display can be configured using a script. It allows to combine other fields together.And in 4.2 release note [2]: Another new type of class fields adds support for *virtual values* computed live from other class values, data from the database, data obtained from an external service, or practically any other source of data. These fields are non-editable and aren't stored in the database, since they only provide some wiki content that will be rendered each time such a property is displayed. Traditionally, this kind of computation would have been written directly in the sheet used to display instances of that class, but putting it in a class field allows easier reuse of the code, since the property will be *displayed* in livetables, when indexing the document in Lucene, when displaying documents in an index page, and so on. I try to used it with a Contact class I defined as following <<Contact>> String firstName String lastName ComputedField fullName I found in mail history only one explanation about this field [3] So, for fullName field, I set script with {{velocity}} $row.firstName $row.lastName {{/velocity}} And that display: $row.firstName $row.lastName OK, [3] speak about Live Table, but what's about displaying this field in other place? Regards, Arnaud. [1] http://platform.xwiki.org/xwiki/bin/view/DevGuide/DataModel [2] http://www.xwiki.org/xwiki/bin/view/ReleaseNotes/ReleaseNotesXWiki42#HCompu… [3] http://xwiki.475771.n2.nabble.com/Computed-fields-td7586948.html