protected internal EntityDbMap GetDbMap <T>()
{
return(EntityDbMap.GetOrAdd <T>(() =>
{
var entityType = Model.FindEntityType(typeof(T));
if (entityType == null)
{
throw new Exception($"从{GetType().Name}获取{typeof(T)}的配置失败");
}
return entityType;
}));
}
internal static EntityDbMap GetOrAdd <T>(Func <IEntityType> getEntity)
{
var key = typeof(T);
if (MapCache.TryGetValue(key, out var map))
{
return(map);
}
//新建
map = new EntityDbMap(getEntity());
return(MapCache.SetValue(key, map));
}