/// <summary>
/// Called just before changes are saved to the database.
/// </summary>
/// <param name="entityDbContext">The database context.</param>
public void PreSaveChanges(EntityDbContext entityDbContext)
{
_options = entityDbContext.EntityContextOptions.GetExtension <EntityCacheOptions>();
var entityTypes = _options.CachedTypesByCachedEntity
.Values
.Select(a => a.EntityType)
.ToList();
_modifiedEntities = entityDbContext.ChangeTracker
.Entries()
.Where(a => a.Entity is IEntity && entityTypes.Contains(a.Entity.GetType()))
.Where(a => a.State == EntityState.Added || a.State == EntityState.Modified || a.State == EntityState.Deleted)
.ToDictionary(a => ( IEntity )a.Entity, a => a.State);
}
public static IServiceCollection AddEntityCache(this IServiceCollection services, Action <EntityCacheOptions> cacheOptions)
{
services.Configure(cacheOptions);
var options = new EntityCacheOptions();
cacheOptions(options);
if (options.Get != null && options.Set != null && options.Del != null)
{
services.TryAdd(ServiceDescriptor.Transient(typeof(IEntityStorage <,>), typeof(OutEntityStorage <,>)));
}
CacheHelper.Options = options;
services.TryAdd(ServiceDescriptor.Transient(typeof(IEntityStorage <,>), typeof(MemoryEntityStorage <,>)));
services.TryAdd(ServiceDescriptor.Transient(typeof(IEntityCache <,>), typeof(EntityCache <,>)));
services.TryAdd(ServiceDescriptor.Transient(typeof(IEntityCache <, ,>), typeof(EntityCache <, ,>)));
return(services);
}
/// <summary>
/// Creates a new instance of the <see cref="EntityCacheOptionsBuilder"/> class.
/// </summary>
/// <param name="options">The options to be built.</param>
internal EntityCacheOptionsBuilder(EntityCacheOptions options)
{
_options = options;
}
