private void StoreSnapshotImpl <TSnapshot>(SqliteContext context, TSnapshot snapshot) where TSnapshot : EntitySnapshot
{
var snapshotSet = context.GetSnapshotSet <TSnapshot>();
if (snapshotSet.Any(e => e.EntityID == snapshot.EntityID))
{
context.Update(snapshot);
}
else
{
context.Add(snapshot);
}
}
private IDisposable GetContext(out SqliteContext context)
{
if (_isBatching)
{
FlushBatch();
context = _batchContext;
return(Disposable.CreateEmpty());
}
else
{
context = new SqliteContext(_connection);
return(context);
}
}
public IDisposable StartSnapshotStoreBatch()
{
if (_isBatching)
{
throw new InvalidOperationException("Cannot start batching while batching is already started");
}
_parentBatchContext = new SqliteContext(_connection);
_transaction = _parentBatchContext.Database.BeginTransaction();
_batchContext = new SqliteContext(_connection);
_batchContext.Database.UseTransaction(_transaction.GetDbTransaction());
_isBatching = true;
return(Disposable.Create(StopBatching));
}
private void StoreSnapshotsImpl(SqliteContext context, IEnumerable <EntitySnapshot> snapshots)
{
foreach (var snapshot in snapshots)
{
var dbSnapshot = context.Find(snapshot.GetType(), snapshot.EntityID);
if (dbSnapshot != null)
{
context.Update(snapshot);
}
else
{
context.Add(snapshot);
}
}
}