Pure.RelationalSchema.RelationalModel.Abstractions

Relational model interfaces for representing database schema structures in the Pure ecosystem — immutable, composable abstractions over schemas, tables, columns, indexes, and foreign keys.

Overview

Pure.RelationalSchema.RelationalModel.Abstractions defines read-only interfaces that describe the structural elements of a relational database schema. Each interface models one entity — schema, table, column, column type, index, or foreign key — using typed primitives from Pure.Primitives.Abstractions. All identities are expressed as IGuid, names as IString, and flags as IBool.

Interfaces

Interface	Namespace	Description
ISchemaRelationalModel	Pure.RelationalSchema.RelationalModel.Abstractions	A database schema identified by a GUID and named with an IString
ITableRelationalModel	Pure.RelationalSchema.RelationalModel.Abstractions	A table within a schema; references its parent schema via SchemaId
IColumnRelationalModel	Pure.RelationalSchema.RelationalModel.Abstractions	A column in a table; carries a reference to its column type via TypeId
IColumnTypeRelationalModel	Pure.RelationalSchema.RelationalModel.Abstractions	A named column type (e.g. integer, varchar) identified by a GUID
IIndexRelationalModel	Pure.RelationalSchema.RelationalModel.Abstractions	An index on a table; exposes IsUnique as IBool
IForeignKeyRelationalModel	Pure.RelationalSchema.RelationalModel.Abstractions	A foreign key constraint linking two tables within a schema

Design Principles

• Immutable — all interfaces expose only get properties; no setters, no mutating methods.
• Composable — entities reference each other via IGuid identifiers rather than direct object graphs, keeping interfaces flat and dependency-free.
• AOT-compatible — the library is fully compatible with Native AOT compilation.

Dependencies

• Pure.Primitives.Abstractions — base interfaces for immutable, composable abstractions over .NET primitive types (IBool, IString, IGuid, INumber<T>, etc.)

Target Frameworks

• .NET 7
• .NET 8
• .NET 9
• .NET 10

Installation

dotnet add package Pure.RelationalSchema.RelationalModel.Abstractions

Usage

Implement the interfaces to model your relational schema entities:

using Pure.RelationalSchema.RelationalModel.Abstractions;
using Pure.Primitives.Abstractions.Guid;
using Pure.Primitives.Abstractions.String;

public sealed class SchemaRelationalModel : ISchemaRelationalModel
{
    public SchemaRelationalModel(IGuid id, IString name)
    {
        Id = id;
        Name = name;
    }

    public IGuid Id { get; }
    public IString Name { get; }
}