Autocomplete anywhere for the word JComboBox / JTextField

Question

I found various solutions for adding autocomplete on JComboBox, but they all work with autocomplete from the very beginning. I am looking for a solution similar to JQueryUI AutoComplete (if you enter av in a text field, it pops up in Java and JavaScript).

For example, if I have the following elements:

• "Red"
• "Blue"
• "Green"

If I enter n, I would like to have a match with Green, since it contains n.

Here is a solution I tested previously that only matches from the start:

• AutoCompleteDecorator.decorate (comboBox) from SwingX
• AutoCompleteSupport.install (COMBOBOX, GlazedLists.eventListOf (elements)); from GlazedLists
• jautocomp from jautocomp
• Java2sAutoComboBox.java

All of the above solutions correspond to the beginning (everyone uses the startWith method), which I am not looking for.

Do you know other solutions like jQueryUI implementation?

Answer 1

You can use these methods by sending substrings to them instead of the full string:

1. check against the full string 2. check against the substring starting at position 1 ... n. check against the substring starting at position `n-1` 

limited to full line length

So, for your example, you would do the following:

• Does “green” correspond to “n” at the beginning? No → next position
• Does "reen" match "n" at the beginning? No → next position
• First, "nen" matches "n"? No → next position
• Does "ru" first match "n"? No → next position
• Does "n" match "n" at the beginning? Yes → select the full word ("Green") as the match