Another good example of how PrimeFaces PRO can provide the features you need in your projects. Upon request of a PrimeFaces PRO user, InputTextarea component is enhanced with a cool AutoComplete feature similar to regular advanced autocomplete component.
Become a PRO user and avoid bugs, request new features, get best practices … Simply get the most out of PrimeFaces!!!
After a certain number of characters (minQueryLength), inputTextarea sends the last word to a completeMethod defined on a backing bean, gets the results back and displays them at caret position. Selecting one of the items via mouse or keyboard inserts selected value to the inputTextarea.
Check out PrimeFaces Labs to see this new feature in action!