/// <summary>
/// Determines if a given type is configured to be change-tracked.
/// </summary>
/// <param name="someType">The whole type to check</param>
/// <returns><literal>true</literal> if it can be tracked, <literal>false</literal> if it can't be tracked</returns>
public bool CanTrackType(Type someType)
{
Contract.Requires(() => someType != null, "Given type cannot be null");
lock (_syncLock)
return(TrackableTypes.Any(t => t.Type == someType.GetActualTypeIfTrackable()));
}
/// <summary>
/// Gets a configured trackable type by type, or returns null if it's not already configured.
/// </summary>
/// <param name="type">The whole type to get its tracking configuration</param>
/// <returns>The configured trackable type by type, or returns null if it's not already configured</returns>
public ITrackableType GetTrackableType(Type type)
{
Contract.Requires(() => type != null, "Given type cannot be null");
lock (_syncLock)
return(TrackableTypes.SingleOrDefault(t => t.Type == type));
}
public T AddObjectToTracking <T>(T item)
where T : IObjectId
{
if (item != null)
{
var type = item.GetType();
if (TrackableTypes.ContainsKey(type))
{
var key = item.GetHashCode();
if (Trackers.ContainsKey(item.Id))
{
return((T)Trackers[item.Id].LiveObj);
}
else
{
this.Set(type).AddToLoaded(item);
var currentTracker = new Tracker <T>(item);
this.Trackers.Add(item.Id, currentTracker);
return(item);
}
}
}
return(default(T));
}
public IObjectChangeTrackingConfiguration TrackThisTypeRecursive(Type rootType, Action <IConfigurableTrackableType> configure = null, TypeSearchSettings searchSettings = null)
{
TrackableType trackableRoot = new TrackableType(this, rootType);
ConfigureWithAttributes(trackableRoot);
List <TrackableType> trackableTypes = null;
searchSettings = searchSettings ?? DefaultSearchSettings;
if (searchSettings.Filter == null)
{
searchSettings.Filter = t => t.GetTypeInfo().Assembly == rootType.GetTypeInfo().Assembly;
}
if (searchSettings.Mode == TypeSearchMode.AttributeConfigurationOnly)
{
Func <Type, bool> initialFilter = searchSettings.Filter;
searchSettings.Filter = t => initialFilter(t) && t.GetTypeInfo().GetCustomAttribute <ChangeTrackableAttribute>() != null;
}
trackableTypes = new List <TrackableType>
(
rootType.GetAllPropertyTypesRecursive(p => p.PropertyType.GetTypeInfo().IsClass&& searchSettings.Filter(p.PropertyType)).Select
(
t =>
{
TrackableType trackableType = new TrackableType(this, t);
ConfigureWithAttributes(trackableType);
configure?.Invoke(trackableType);
return(trackableType);
}
)
);
trackableTypes.Insert(0, new TrackableType(this, rootType));
foreach (ITrackableType trackableType in trackableTypes)
{
if (!trackableType.Type.GetTypeInfo().IsInterface)
{
TrackableTypes.Add(trackableType);
}
else
{
TrackableInterfaceTypes.Add(trackableType);
}
}
return(this);
}
public IObjectChangeTrackingConfiguration TrackThisType(Type type, Action <IConfigurableTrackableType> configure = null)
{
TrackableType trackableType = new TrackableType(this, type);
ConfigureWithAttributes(trackableType);
configure?.Invoke(trackableType);
if (!trackableType.Type.GetTypeInfo().IsInterface)
{
TrackableTypes.Add(trackableType);
}
else
{
TrackableInterfaceTypes.Add(trackableType);
}
return(this);
}
/// <summary>
/// Configures which types will support change tracking.
/// </summary>
/// <param name="types">The types to track its changes</param>
public void TrackTheseTypes(params ITrackableType[] types)
{
Contract.Requires(() => types != null && types.Length > 0 && types.All(t => t != null), "Given types cannot be null");
lock (_syncLock)
{
foreach (ITrackableType type in types)
{
if (!type.Type.GetTypeInfo().IsInterface)
{
Contract.Assert(() => TrackableTypes.Add(type), "Type can only be configured to be tracked once");
}
else
{
IConfigurableTrackableType trackableType = type as IConfigurableTrackableType;
trackableType.IncludeProperties(type.Type.GetProperties());
Contract.Assert(() => TrackableInterfaceTypes.Add(type), "Interface type can only be configured to be tracked once");
}
}
}
}
