private void GetResultsFromDatabase(IList results)
{
Stopwatch stopWatch = null;
if (session.Factory.Statistics.IsStatisticsEnabled)
{
stopWatch = Stopwatch.StartNew();
}
int rowCount = 0;
var cacheBatcher = new CacheBatcher(session);
try
{
using (var reader = resultSetsCommand.GetReader(_timeout))
{
var hydratedObjects = new List <object> [loaders.Count];
List <EntityKey[]>[] subselectResultKeys = new List <EntityKey[]> [loaders.Count];
bool[] createSubselects = new bool[loaders.Count];
for (int i = 0; i < loaders.Count; i++)
{
CriteriaLoader loader = loaders[i];
int entitySpan = loader.EntityPersisters.Length;
hydratedObjects[i] = entitySpan == 0 ? null : new List <object>(entitySpan);
EntityKey[] keys = new EntityKey[entitySpan];
QueryParameters queryParameters = parameters[i];
IList tmpResults = new List <object>();
RowSelection selection = parameters[i].RowSelection;
createSubselects[i] = loader.IsSubselectLoadingEnabled;
subselectResultKeys[i] = createSubselects[i] ? new List <EntityKey[]>() : null;
int maxRows = Loader.Loader.HasMaxRows(selection) ? selection.MaxRows : int.MaxValue;
if (!dialect.SupportsLimitOffset || !loader.UseLimit(selection, dialect))
{
Loader.Loader.Advance(reader, selection);
}
int count;
for (count = 0; count < maxRows && reader.Read(); count++)
{
rowCount++;
object o =
loader.GetRowFromResultSet(reader, session, queryParameters, loader.GetLockModes(queryParameters.LockModes),
null, hydratedObjects[i], keys, true, null, null,
(persister, data) => cacheBatcher.AddToBatch(persister, data));
if (createSubselects[i])
{
subselectResultKeys[i].Add(keys);
keys = new EntityKey[entitySpan]; //can't reuse in this case
}
tmpResults.Add(o);
}
results.Add(tmpResults);
reader.NextResult();
}
for (int i = 0; i < loaders.Count; i++)
{
CriteriaLoader loader = loaders[i];
loader.InitializeEntitiesAndCollections(hydratedObjects[i], reader, session, session.DefaultReadOnly, cacheBatcher);
if (createSubselects[i])
{
loader.CreateSubselects(subselectResultKeys[i], parameters[i], session);
}
}
cacheBatcher.ExecuteBatch();
}
}
catch (Exception sqle)
{
log.Error(sqle, "Failed to execute multi criteria: [{0}]", resultSetsCommand.Sql);
throw ADOExceptionHelper.Convert(session.Factory.SQLExceptionConverter, sqle, "Failed to execute multi criteria", resultSetsCommand.Sql);
}
if (stopWatch != null)
{
stopWatch.Stop();
session.Factory.StatisticsImplementor.QueryExecuted(string.Format("{0} queries (MultiCriteria)", loaders.Count), rowCount, stopWatch.Elapsed);
}
}
private async Task GetResultsFromDatabaseAsync(IList results, CancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
bool statsEnabled = session.Factory.Statistics.IsStatisticsEnabled;
var stopWatch = new Stopwatch();
if (statsEnabled)
{
stopWatch.Start();
}
int rowCount = 0;
try
{
using (var reader = await(resultSetsCommand.GetReaderAsync(null, cancellationToken)).ConfigureAwait(false))
{
var hydratedObjects = new List <object> [loaders.Count];
List <EntityKey[]>[] subselectResultKeys = new List <EntityKey[]> [loaders.Count];
bool[] createSubselects = new bool[loaders.Count];
for (int i = 0; i < loaders.Count; i++)
{
CriteriaLoader loader = loaders[i];
int entitySpan = loader.EntityPersisters.Length;
hydratedObjects[i] = entitySpan == 0 ? null : new List <object>(entitySpan);
EntityKey[] keys = new EntityKey[entitySpan];
QueryParameters queryParameters = parameters[i];
IList tmpResults = new List <object>();
RowSelection selection = parameters[i].RowSelection;
createSubselects[i] = loader.IsSubselectLoadingEnabled;
subselectResultKeys[i] = createSubselects[i] ? new List <EntityKey[]>() : null;
int maxRows = Loader.Loader.HasMaxRows(selection) ? selection.MaxRows : int.MaxValue;
if (!dialect.SupportsLimitOffset || !loader.UseLimit(selection, dialect))
{
await(Loader.Loader.AdvanceAsync(reader, selection, cancellationToken)).ConfigureAwait(false);
}
int count;
for (count = 0; count < maxRows && await(reader.ReadAsync(cancellationToken)).ConfigureAwait(false); count++)
{
rowCount++;
object o =
await(loader.GetRowFromResultSetAsync(reader, session, queryParameters, loader.GetLockModes(queryParameters.LockModes),
null, hydratedObjects[i], keys, true, cancellationToken)).ConfigureAwait(false);
if (createSubselects[i])
{
subselectResultKeys[i].Add(keys);
keys = new EntityKey[entitySpan]; //can't reuse in this case
}
tmpResults.Add(o);
}
results.Add(tmpResults);
await(reader.NextResultAsync(cancellationToken)).ConfigureAwait(false);
}
for (int i = 0; i < loaders.Count; i++)
{
CriteriaLoader loader = loaders[i];
await(loader.InitializeEntitiesAndCollectionsAsync(hydratedObjects[i], reader, session, session.DefaultReadOnly, cancellationToken)).ConfigureAwait(false);
if (createSubselects[i])
{
loader.CreateSubselects(subselectResultKeys[i], parameters[i], session);
}
}
}
}
catch (Exception sqle)
{
var message = string.Format("Failed to execute multi criteria: [{0}]", resultSetsCommand.Sql);
log.Error(message, sqle);
throw ADOExceptionHelper.Convert(session.Factory.SQLExceptionConverter, sqle, "Failed to execute multi criteria", resultSetsCommand.Sql);
}
if (statsEnabled)
{
stopWatch.Stop();
session.Factory.StatisticsImplementor.QueryExecuted(string.Format("{0} queries (MultiCriteria)", loaders.Count), rowCount, stopWatch.Elapsed);
}
}
