Vaadin Grid column renderers to display java.time types:
Vaadin Grid 8.1 and later comes bundled with a pair of column renderers for displaying two of the modern date-time data types found in Java 8 and later:
These two java.time types purposely lack any concept of time zone or offset-from-UTC.
The java.time classes include three more types that do include a time zone or offset-from-UTC:
By default, Vaadin Grid calls the
toString method on such objects to render a String for display. That
toString method generates a string in standard ISO 8601 format such as
2017-01-23T01:23:45.678Z. To display the date-time values in other formats, use this add-on with its trio of column renderers appropriately named:
ZonedDateTimeRenderer. Specify a
Locale to adjust zones and localize.
The API of these renderer classes follows the pattern of the API of the classes published by Vaadin Ltd. Note that I do not agree with their decision to provide constructors taking a String representing a custom formatting pattern. Other constructors take a
DateTimeFormatter object, and that should suffice. The column renderers should not, in my opinion, get involved in processing a calling programmer’s custom formatting pattern codes. And these extra constructors complicate the API of these classes with no added benefit. See my feature request # 10,207 to remove these constructors from their API. If deprecated there, I will do so here.
Hopefully, such classes as these renderers will be added to Vaadin itself in a future update. See feature request # 10,208.