question: public void insertRecord ( int id , byte [ ] record ) throws IOException { if ( ! database . isOpen ( ) ) throw new IllegalStateException ( "don't access the table before opening the database" ) ; if ( id < committedNextRowId ) throw new IllegalStateException ( "Trying to insert a row below nextRowId: " + id + ", this: " + this ) ; if ( id != lastTransactionInsertId + 1 ) throw new IllegalStateException ( "Trying to insert a row that is not one above the last transaction id: " + lastTransactionInsertId + ", id: " + id ) ; if ( record . length != recordSize ) throw new IllegalStateException ( "Record is wrong size: " + record . length + ", this: " + this ) ; insertRecordOut . write ( record ) ; lastTransactionInsertId = id ; }
target:  Within a transaction, all inserts must be done in sequential order