When the last character in an autocomplete field is deleted (e.g. with backspace), the autocomplete action method is not called.
Sample: autocomplete field is initially empty
- Enter a -> action is called with “a”
- Enter b -> action is called with “ab”
- Backspace -> action is called with “a”
- Backspace -> action is not called
This behavior is different to Richfaces 3.X versions. There, when deleting the last character, the autocomplete action is also called (with an empty input).
In my opinion it is very important that, when deleting the last character, the action is called too. Suppose you have some autocomplete fields which represent filter criteria for a DB query (like one for street and one for town). On every user input the autocomplete actions are called which result in a DB query, where street and town are taken into account in the WHERE clause. Now the problem is, that when a user deletes the last character for example for the town autocomplete field, this is not recognized by the bean. When then the user changes after that to the other autocomplete filed (in this sample to the street autocomplete field) then on every input the last character of the town field is also taken into account (which is at the web page not present because there it was already deleted), but the bean behind did not get the information that the in the meantime the town field is empty and the query always takes the one character of the town into account. Actually this is more or less exactly the problem I currently have.
