public boolean attachTo(JTextField field) {
		if (!attachees.add(field)) {
			return false;
		}
		boolean keep = false;
		try {
			field.addFocusListener(listener);
			field.addCaretListener(listener);
			field.addKeyListener(listener);
			field.getDocument().addDocumentListener(listener);
			keep = true;
		}
		finally {
			if (!keep) {
				attachees.remove(field);
			}
		}
		return keep;
	}
Attach the autocompleter to the given text field.

<p>
If this method is never called, then the autocompleter can never appear.

@param field the field that will gain this autocompletion feature
@return true, if this field is not already attached
Ghidra/Framework/Docking/src/main/java/docking/widgets/autocomplete/TextFieldAutocompleter.java