/// <summary>
/// Default constructor.
/// </summary>
protected StorageManager()
{
this.activeContextMap = new Dictionary <Transaction, StorageContext>();
this.preparedContextMap = new StorageTransactionTable();
this.pageManager = new StoragePageManager();
this.lockManager = new MyLM();
this.disposed = false;
}
private void InitializeDataFile()
{
// helpers
List <int> oldPages = null;
DBHdr dbRoot = new DBHdr();
WriteDBRoot(dbRoot);
// create the page table
StoragePageTable pageTable = new StoragePageTable();
dbRoot.PageTable = pageTable.WritePageTableData(
this.dataFile, this.pageManager, out oldPages);
// create resource index
StorageIndex <RID> resourceIndx = new StorageIndex <RID>();
dbRoot.ResourceIndex = resourceIndx.WriteIndexData(
this.dataFile, this.pageManager, out oldPages);
// create reservation index
StorageIndex <Customer> reservationIndex = new StorageIndex <Customer>();
dbRoot.ReservationIndex = reservationIndex.WriteIndexData(
this.dataFile, this.pageManager, out oldPages);
// create preped transactions index
StorageTransactionTable preparedTransactions = new StorageTransactionTable();
dbRoot.PrepedTransactions = preparedTransactions.WriteTransactionTableData(
this.dataFile, this.pageManager, out oldPages);
// write the page manager
dbRoot.PageManager = this.pageManager.WritePageManagerData(this.dataFile);
// write the dbRoot one more time
WriteDBRoot(dbRoot);
}
