public object Create()
{
return(new DataChangesDetector <T>(
_metadata.MapSpecificationProviderForSource,
_metadata.MapSpecificationProviderForTarget,
_equalityComparerFactory.CreateIdentityComparer <T>(),
_query));
}
public IdentityChangesProvider(IQuery query,
IStorageBasedDataObjectAccessor <TDataObject> storageBasedDataObjectAccessor,
IEqualityComparerFactory equalityComparerFactory)
{
_query = query;
_storageBasedDataObjectAccessor = storageBasedDataObjectAccessor;
_identityComparer = equalityComparerFactory.CreateIdentityComparer <TDataObject>();
}
public IdentityInMemoryChangesProvider(IQuery query,
IMemoryBasedDataObjectAccessor <TDataObject> memoryBasedDataObjectAccessor,
IEqualityComparerFactory equalityComparerFactory)
{
_query = query;
_memoryBasedDataObjectAccessor = memoryBasedDataObjectAccessor;
_identityComparer = equalityComparerFactory.CreateIdentityComparer <TDataObject>();
}
public SyncEntityNameActor(IQuery query,
IBulkRepository <EntityName> bulkRepository,
IEqualityComparerFactory equalityComparerFactory)
{
_query = query;
_bulkRepository = bulkRepository;
_identityComparer = equalityComparerFactory.CreateIdentityComparer <EntityName>();
_completeComparer = equalityComparerFactory.CreateCompleteComparer <EntityName>();
}
public IdentityChangesProvider(IQuery query,
IStorageBasedDataObjectAccessor <TDataObject> storageBasedDataObjectAccessor,
IEqualityComparerFactory equalityComparerFactory)
{
_storageBasedDataObjectAccessor = storageBasedDataObjectAccessor;
_dataChangesDetector = new DataChangesDetector <TDataObject>(
specification => storageBasedDataObjectAccessor.GetSource().WhereMatched(specification),
specification => query.For <TDataObject>().WhereMatched(specification),
equalityComparerFactory.CreateIdentityComparer <TDataObject>());
}
public void ApplyChanges(IReadOnlyCollection <long> ids)
{
var mergeResult = _changesDetector.DetectChanges(Specs.Map.ZeroMapping <T>(), _metadata.FindSpecificationProvider.Invoke(ids), _equalityComparerFactory.CreateIdentityComparer <T>());
_repository.Delete(mergeResult.Complement);
_repository.Create(mergeResult.Difference);
_repository.Update(mergeResult.Intersection);
}
public void Execute(IReadOnlyCollection <RecalculateStatisticsOperation> commands)
{
var filter = _metadata.FindSpecificationProvider.Invoke(commands.Select(c => c.EntityId).ToArray());
// Сначала сравниением получаем различающиеся записи,
// затем получаем те из различающихся, которые совпадают по идентификатору.
var intermediateResult = _changesDetector.DetectChanges(filter);
var changes = MergeTool.Merge(intermediateResult.Difference, intermediateResult.Complement, _equalityComparerFactory.CreateIdentityComparer <T>());
_repository.Delete(changes.Complement);
_repository.Create(changes.Difference);
_repository.Update(changes.Intersection);
}
public void RecalculateStatistics(long projectId, IReadOnlyCollection <long?> categoryIds)
{
var filter = _metadata.FindSpecificationProvider.Invoke(projectId, categoryIds);
// Сначала сравниением получаем различающиеся записи,
// затем получаем те из различающихся, которые совпадают по идентификатору.
var intermediateResult = _changesDetector.DetectChanges(Specs.Map.ZeroMapping <T>(), filter, _equalityComparerFactory.CreateCompleteComparer <T>());
var changes = MergeTool.Merge(intermediateResult.Difference, intermediateResult.Complement, _equalityComparerFactory.CreateIdentityComparer <T>());
// Наличие или отсутствие статистики - не повод создавать или удалять рубрики у фирм.
// Поэтому только обновление.
_repository.Update(changes.Intersection);
}
public TwoPhaseDataChangesDetector(IEqualityComparerFactory equalityComparerFactory)
{
_identityComparer = equalityComparerFactory.CreateIdentityComparer <TDataObject>();
_completeComparer = equalityComparerFactory.CreateCompleteComparer <TDataObject>();
}