public String toString() {
        StringBuffer b=new StringBuffer();
        b.append("Query: " + Arrays.toString(query) + "\n");
        b.append("Field: " + Arrays.toString(field) + "\n");
        b.append(value);
        return b.toString();
    }
Returns the current state as a string
searchlib/src/test/java/com/yahoo/searchlib/ranking/features/fieldmatch/reference/OptimalStringAlignmentDistance.java