emits result if any partition returns true . then on the window emits no more tuples concode_field_sep DefaultOutputPort<Boolean> mergedport concode_elem_sep boolean result concode_field_sep void beginWindow concode_elem_sep void setup concode_elem_sep void endWindow concode_elem_sep void teardown
void function ( Boolean arg0 ) { if ( ! result ) { if ( arg0 ) { mergedport . emit ( true ) ; } result = true ; } }