private static Func <object, IEntityWrapper> CreateWrapperDelegateTypedWithoutRelationships <TEntity>() where TEntity : class
{
bool overridesEquals = typeof(TEntity).OverridesEqualsOrGetHashCode();
Func <object, IPropertyAccessorStrategy> propertyAccessorStrategy;
Func <object, IEntityKeyStrategy> keyStrategy;
Func <object, IChangeTrackingStrategy> changeTrackingStrategy;
EntityWrapperFactory.CreateStrategies <TEntity>(out propertyAccessorStrategy, out changeTrackingStrategy, out keyStrategy);
return((Func <object, IEntityWrapper>)(entity => (IEntityWrapper) new EntityWrapperWithoutRelationships <TEntity>((TEntity)entity, propertyAccessorStrategy, changeTrackingStrategy, keyStrategy, overridesEquals)));
}
public void Factory_sets_override_flag_appropriately_for_pure_POCO_entities()
{
var wrappedEntity = EntityWrapperFactory.CreateNewWrapper(new object(), new EntityKey());
Assert.Same(typeof(EntityWrapperWithoutRelationships <>), wrappedEntity.GetType().GetGenericTypeDefinition());
Assert.False(wrappedEntity.OverridesEqualsOrGetHashCode);
wrappedEntity = EntityWrapperFactory.CreateNewWrapper(new Mock <PocoWithEquals>().Object, new EntityKey());
Assert.Same(typeof(EntityWrapperWithoutRelationships <>), wrappedEntity.GetType().GetGenericTypeDefinition());
Assert.True(wrappedEntity.OverridesEqualsOrGetHashCode);
}
public void Factory_sets_override_flag_appropriately_for_entities_with_relationships()
{
var wrappedEntity = EntityWrapperFactory.CreateNewWrapper(new EntityWithRelationshipsButWithoutEquals(), new EntityKey());
Assert.Same(typeof(EntityWrapperWithRelationships <>), wrappedEntity.GetType().GetGenericTypeDefinition());
Assert.False(wrappedEntity.OverridesEqualsOrGetHashCode);
wrappedEntity = EntityWrapperFactory.CreateNewWrapper(new EntityWithRelationshipsAndEquals(), new EntityKey());
Assert.Same(typeof(EntityWrapperWithRelationships <>), wrappedEntity.GetType().GetGenericTypeDefinition());
Assert.True(wrappedEntity.OverridesEqualsOrGetHashCode);
}
public void Factory_sets_override_flag_appropriately_for_IPOCO_EntityObject_entities()
{
var wrappedEntity = EntityWrapperFactory.CreateNewWrapper(new EntityObjectWithoutEquals(), new EntityKey());
Assert.Same(typeof(LightweightEntityWrapper <>), wrappedEntity.GetType().GetGenericTypeDefinition());
Assert.False(wrappedEntity.OverridesEqualsOrGetHashCode);
wrappedEntity = EntityWrapperFactory.CreateNewWrapper(new EntityObjectWithEquals(), new EntityKey());
Assert.Same(typeof(LightweightEntityWrapper <>), wrappedEntity.GetType().GetGenericTypeDefinition());
Assert.True(wrappedEntity.OverridesEqualsOrGetHashCode);
}
internal virtual IEntityWrapper WrapEntityUsingStateManagerGettingEntry(
object entity,
ObjectStateManager stateManager,
out EntityEntry existingEntry)
{
IEntityWrapper wrapper = (IEntityWrapper)null;
existingEntry = (EntityEntry)null;
if (entity == null)
{
return(NullEntityWrapper.NullWrapper);
}
if (stateManager != null)
{
existingEntry = stateManager.FindEntityEntry(entity);
if (existingEntry != null)
{
return(existingEntry.WrappedEntity);
}
if (stateManager.TransactionManager.TrackProcessedEntities && stateManager.TransactionManager.WrappedEntities.TryGetValue(entity, out wrapper))
{
return(wrapper);
}
}
IEntityWithRelationships withRelationships = entity as IEntityWithRelationships;
if (withRelationships != null)
{
RelationshipManager relationshipManager = withRelationships.RelationshipManager;
if (relationshipManager == null)
{
throw new InvalidOperationException(Strings.RelationshipManager_UnexpectedNull);
}
IEntityWrapper wrappedOwner = relationshipManager.WrappedOwner;
if (!object.ReferenceEquals(wrappedOwner.Entity, entity))
{
throw new InvalidOperationException(Strings.RelationshipManager_InvalidRelationshipManagerOwner);
}
return(wrappedOwner);
}
EntityProxyFactory.TryGetProxyWrapper(entity, out wrapper);
if (wrapper == null)
{
IEntityWithKey entityWithKey = entity as IEntityWithKey;
wrapper = EntityWrapperFactory.CreateNewWrapper(entity, entityWithKey == null ? (EntityKey)null : entityWithKey.EntityKey);
}
if (stateManager != null && stateManager.TransactionManager.TrackProcessedEntities)
{
stateManager.TransactionManager.WrappedEntities.Add(entity, wrapper);
}
return(wrapper);
}
public void Factory_sets_override_flag_appropriately_for_entities_with_relationships()
{
var mockWithRelationships = new Mock <IEntityWithRelationships>();
mockWithRelationships.Setup(m => m.RelationshipManager).Returns(RelationshipManager.Create(mockWithRelationships.Object));
var wrappedEntity = EntityWrapperFactory.CreateNewWrapper(mockWithRelationships.Object, new EntityKey());
Assert.Same(typeof(EntityWrapperWithRelationships <>), wrappedEntity.GetType().GetGenericTypeDefinition());
Assert.False(wrappedEntity.OverridesEqualsOrGetHashCode);
wrappedEntity = EntityWrapperFactory.CreateNewWrapper(new Mock <EntityWithRelationshipsAndEquals>().Object, new EntityKey());
Assert.Same(typeof(EntityWrapperWithRelationships <>), wrappedEntity.GetType().GetGenericTypeDefinition());
Assert.True(wrappedEntity.OverridesEqualsOrGetHashCode);
}
private static void CreateStrategies <TEntity>(
out Func <object, IPropertyAccessorStrategy> createPropertyAccessorStrategy,
out Func <object, IChangeTrackingStrategy> createChangeTrackingStrategy,
out Func <object, IEntityKeyStrategy> createKeyStrategy)
{
Type type = typeof(TEntity);
bool flag1 = typeof(IEntityWithRelationships).IsAssignableFrom(type);
bool flag2 = typeof(IEntityWithChangeTracker).IsAssignableFrom(type);
bool flag3 = typeof(IEntityWithKey).IsAssignableFrom(type);
bool flag4 = EntityProxyFactory.IsProxyType(type);
createPropertyAccessorStrategy = !flag1 || flag4?EntityWrapperFactory.GetPocoPropertyAccessorStrategyFunc() : EntityWrapperFactory.GetNullPropertyAccessorStrategyFunc();
createChangeTrackingStrategy = !flag2?EntityWrapperFactory.GetSnapshotChangeTrackingStrategyFunc() : EntityWrapperFactory.GetEntityWithChangeTrackerStrategyFunc();
if (flag3)
{
createKeyStrategy = EntityWrapperFactory.GetEntityWithKeyStrategyStrategyFunc();
}
else
{
createKeyStrategy = EntityWrapperFactory.GetPocoEntityKeyStrategyFunc();
}
}
