public void deleteFromSchema ( Mutation mutation , String cfName , long timestamp ) { ColumnFamily cf = mutation . addOrGet ( SystemKeyspace . SCHEMA_TRIGGERS_CF ) ; int ldt = ( int ) ( System . currentTimeMillis ( ) / 1000 ) ; Composite prefix = CFMetaData . SchemaTriggersCf . comparator . make ( cfName , name ) ; cf . addAtom ( new RangeTombstone ( prefix , prefix . end ( ) , timestamp , ldt ) ) ; }
Drop specified trigger from the schema using given mutation .