Method keySet

src/org/apache/pig/impl/util/MultiMap.java:144–146

Get a set of all the keys in this map. @return Set of keys.

()

     * @return Set of keys.
     */
    public Set<K> keySet() {
        return mMap.keySet();
    }

    /**
     * Get a single collection of all the values in the map.  All of the