/// <summary>
/// 使用克隆方式构造一个 <see cref="AccessorDbContextOptionsExtension"/>。
/// </summary>
/// <param name="copyFrom">给定要克隆的 <see cref="AccessorDbContextOptionsExtension"/>。</param>
protected AccessorDbContextOptionsExtension(AccessorDbContextOptionsExtension copyFrom)
{
_group = copyFrom.Group;
_access = copyFrom.Access;
_pooling = copyFrom.Pooling;
_priority = copyFrom.Priority;
_algorithm = copyFrom.Algorithm;
_sharded = copyFrom.Sharded;
_serviceType = copyFrom.ServiceType;
}
/// <summary>
/// 转为存取器描述符。
/// </summary>
/// <param name="extension">给定的 <see cref="AccessorDbContextOptionsExtension"/>。</param>
/// <param name="accessor">给定的 <see cref="AbstractContextAccessor"/>。</param>
/// <returns>返回 <see cref="AccessorDescriptor"/>。</returns>
public static AccessorDescriptor ToDescriptor(this AccessorDbContextOptionsExtension extension,
AbstractContextAccessor accessor)
{
// 默认使用存取器定义的优先级属性值
var priority = extension.Priority < 0 ? accessor.Priority : extension.Priority;
var algorithms = extension.Algorithm ?? accessor.CoreOptions.Algorithm;
return(new AccessorDescriptor(accessor, extension.ServiceType !, extension.Group,
extension.Access, extension.Pooling, priority, algorithms, extension.Sharded));
}
public ExtensionInfo(AccessorDbContextOptionsExtension extension)
: base(extension)
{
}
