/// <summary>Create a new subspace from a binary prefix</summary>
/// <param name="prefix">Prefix of the new subspace</param>
/// <param name="encoding">Type System used to encode keys in this subspace</param>
internal DynamicKeySubspace(Slice prefix, [NotNull] IKeyEncoding encoding)
: base(prefix)
{
Contract.Requires(encoding != null);
this.Encoding = encoding;
this.KeyEncoder = encoding.GetDynamicKeyEncoder();
this.Keys = new DynamicKeys(this, this.KeyEncoder);
this.Partition = new DynamicPartition(this);
}
internal FdbDirectoryPartition([NotNull] ITuple location, [NotNull] ITuple relativeLocation, Slice prefix, [NotNull] FdbDirectoryLayer directoryLayer, [NotNull] IKeyEncoding keyEncoding)
: base(location, relativeLocation, prefix, new FdbDirectoryLayer(FromKey(prefix + FdbKey.Directory).AsDynamic(keyEncoding), FromKey(prefix).AsDynamic(keyEncoding), location), LayerId, keyEncoding)
{
this.ParentDirectoryLayer = directoryLayer;
}
internal FdbDirectorySubspace([NotNull] ITuple location, [NotNull] ITuple relativeLocation, Slice prefix, [NotNull] FdbDirectoryLayer directoryLayer, Slice layer, [NotNull] IKeyEncoding encoding)
: base(prefix, encoding)
{
Contract.Requires(location != null && relativeLocation != null && prefix != null && directoryLayer != null);
if (layer.IsNull)
{
layer = Slice.Empty;
}
this.DirectoryLayer = directoryLayer;
this.Location = location;
this.RelativeLocation = relativeLocation;
this.Layer = layer;
this.Path = location.ToArray <string>();
Contract.Ensures(this.DirectoryLayer != null && this.Location != null && this.RelativeLocation != null && this.Path != null);
Contract.Ensures(this.RelativeLocation.Count <= this.Location.Count && this.Location.EndsWith(this.RelativeLocation));
}
public static ITypedKeySubspace <T1, T2, T3, T4> AsTyped <T1, T2, T3, T4>([NotNull] this IKeySubspace subspace, [CanBeNull] IKeyEncoding encoding = null)
{
Contract.NotNull(subspace, nameof(subspace));
return(new TypedKeySubspace <T1, T2, T3, T4>(subspace.GetPrefix(), (encoding ?? TuPack.Encoding).GetKeyEncoder <T1, T2, T3, T4>()));
}
public static IDynamicKeySubspace AsDynamic([NotNull] this IKeySubspace subspace, IKeyEncoding encoding = null)
{
Contract.NotNull(subspace, nameof(subspace));
return(new DynamicKeySubspace(subspace.GetPrefix(), encoding ?? TuPack.Encoding));
}
public static DynamicKeySubspace Copy([NotNull] this IKeySubspace subspace, IKeyEncoding encoding)
{
Contract.NotNull(subspace, nameof(subspace));
Contract.NotNull(encoding, nameof(encoding));
return(new DynamicKeySubspace(StealPrefix(subspace), encoding));
}
/// <summary>Initializes a new subspace with the given binary <paramref name="prefix"/>, that uses a typed key <paramref name="encoding"/>.</summary>
/// <returns>A subspace that can handle composite keys of type (<typeparamref name="T1"/>, <typeparamref name="T2"/>).</returns>
public static TypedKeySubspace <T1, T2> CreateTyped <T1, T2>(Slice prefix, [CanBeNull] IKeyEncoding encoding = null)
{
return(new TypedKeySubspace <T1, T2>(prefix, (encoding ?? TuPack.Encoding).GetKeyEncoder <T1, T2>()));
}
public static DynamicKeySubspace CreateDynamic(Slice prefix, [CanBeNull] IKeyEncoding encoding = null)
{
return(new DynamicKeySubspace(prefix, (encoding ?? TuPack.Encoding).GetDynamicKeyEncoder()));
}
