public object GetValue(Transaction transaction)
{
if (this.transaction != null && this.transaction == transaction)
return this.value;
return this.GetValue(transaction.Start - 1);
}
public void RollbackValue(Transaction transaction)
{
lock (this.trobj)
{
if (this.transaction != transaction)
return;
this.transaction = null;
this.value = null;
}
}
public void CommitTransaction()
{
lock (this)
this.transactions.Remove(current);
long trtime = Interlocked.Increment(ref this.time);
Interlocked.Increment(ref this.time);
current.Commit(trtime);
current = null;
}
public void BeginTransaction()
{
if (current != null)
throw new InvalidOperationException("A Transaction is active");
Transaction transaction = this.CreateTransaction();
current = transaction;
lock (this)
this.transactions.Add(current);
}
public void CommitValue(Transaction transaction)
{
lock (this.trobj)
{
if (this.transaction == transaction)
{
this.SetValue(transaction.End, this.value);
this.transaction = null;
this.value = null;
}
if (this.trobj.TransactionManager.HasTransactions())
this.ReleaseValues(this.trobj.TransactionManager.MinimalTransactionalTime);
}
}
public void SetValue(Transaction transaction, object value)
{
if (this.transaction != null && this.transaction != transaction)
throw new InvalidOperationException("Another transaction modified this value");
foreach (long time in this.committedValues.Keys)
if (time > transaction.Start)
throw new InvalidOperationException("Another transaction modified this value");
if (this.transaction == null)
transaction.RegisterValue(this);
this.transaction = transaction;
this.value = value;
}
