public IReadOnlyCollection <IEvent> ExecuteCommands(IReadOnlyCollection <ICommand> commands)
{
// db accessors
var syncDataObjectCommands = commands.OfType <ISyncDataObjectCommand>().ToList();
if (syncDataObjectCommands.Count != 0)
{
foreach (var accessor in CreateAccessors(_query).Select(AddTenancy))
{
var specification = accessor.GetFindSpecification(syncDataObjectCommands);
var source = accessor.GetSource().WhereMatched(specification);
var target = _query.For <EntityName>()
.Where(new FindSpecification <EntityName>(x => x.TenantId == _tenantProvider.Current))
.WhereMatched(specification);
var changes = _dataChangesDetector.DetectChanges(source, target);
_bulkRepository.Delete(changes.Complement);
_bulkRepository.Create(changes.Difference);
_bulkRepository.Update(changes.Intersection);
}
}
// memory accessors
var syncInMemoryDataObjectCommands = commands.OfType <ISyncInMemoryDataObjectCommand>().ToList();
if (syncInMemoryDataObjectCommands.Count != 0)
{
foreach (var accessor in CreateMemoryAccessors())
{
var specification = accessor.GetFindSpecification(syncInMemoryDataObjectCommands);
var source = accessor.GetDataObjects(syncInMemoryDataObjectCommands);
var target = _query.For <EntityName>().WhereMatched(specification);
var changes = _dataChangesDetector.DetectChanges(source, target);
_bulkRepository.Delete(changes.Complement);
_bulkRepository.Create(changes.Difference);
_bulkRepository.Update(changes.Intersection);
}
}
return(Array.Empty <IEvent>());
}
public IReadOnlyCollection <IEvent> ExecuteCommands(IReadOnlyCollection <ICommand> commands)
{
// db accessors
var syncDataObjectCommands = commands.OfType <ISyncDataObjectCommand>().ToList();
if (syncDataObjectCommands.Count != 0)
{
foreach (var accessor in CreateAccessors(_query))
{
var specification = accessor.GetFindSpecification(syncDataObjectCommands);
var dataChangesDetector = new TwoPhaseDataChangesDetector <EntityName>(
spec => accessor.GetSource().WhereMatched(spec),
spec => _query.For <EntityName>().WhereMatched(spec),
_identityComparer,
_completeComparer);
var changes = dataChangesDetector.DetectChanges(specification);
_bulkRepository.Delete(changes.Complement);
_bulkRepository.Create(changes.Difference);
_bulkRepository.Update(changes.Intersection);
}
}
// memory accessors
var replaceDataObjectCommands = commands.OfType <IReplaceDataObjectCommand>().ToList();
if (replaceDataObjectCommands.Count != 0)
{
foreach (var accessor in CreateMemoryAccessors())
{
var specification = accessor.GetFindSpecification(replaceDataObjectCommands);
var dataChangesDetector = new TwoPhaseDataChangesDetector <EntityName>(
_ => accessor.GetDataObjects(replaceDataObjectCommands),
spec => _query.For <EntityName>().WhereMatched(spec),
_identityComparer,
_completeComparer);
var changes = dataChangesDetector.DetectChanges(specification);
_bulkRepository.Delete(changes.Complement);
_bulkRepository.Create(changes.Difference);
_bulkRepository.Update(changes.Intersection);
}
}
return(Array.Empty <IEvent>());
}