public String toString() {
            StringBuilder buffer=new StringBuilder("\"");
            for (Iterator<Item> i=itemIterator(); i.hasNext(); ) {
                buffer.append(i.next().toString());
                if (i.hasNext())
                    buffer.append(" ");
            }
            buffer.append("\"");
            return buffer.toString();
        }
Returns the items of this phrase as a read-only iterator
container-search/src/main/java/com/yahoo/prelude/querytransform/PhraseMatcher.java