void writeChildren ( TreeMap < Character , Long > counts ) { int firstIndex = trie . nodes . length ( ) ; counts . forEach ( ( k , v ) -> { if ( v > 0 ) trie . nodes . add ( new NodeData ( k , ( short ) - 1 , - 1 , v , - 1 ) ) ; } ) ; short length = ( short ) ( trie . nodes . length ( ) - firstIndex ) ; trie . ensureParentIndexCapacity ( firstIndex , length , index ) ; update ( n -> n . setFirstChildIndex ( firstIndex ) . setNumberOfChildren ( length ) ) ; data = null ; }
Write children .