question: emits mergedtuple on mergedport if it is not empty concode_field_sep DefaultOutputPort<HashMap<K,Integer>> mergedport concode_elem_sep HashMap<K,Integer> mergedTuple concode_elem_sep Integer lval concode_elem_sep boolean least concode_field_sep void beginWindow concode_elem_sep void process concode_elem_sep void setup concode_elem_sep void setLeast concode_elem_sep boolean getLeast concode_elem_sep void teardown
target: void function ( ) { if ( ! mergedTuple . isEmpty ( ) ) { mergedport . emit ( mergedTuple ) ; mergedTuple = new HashMap < K , Integer > ( ) ; } }