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/*
* Copyright (c) 2022 Vaughn Nugent
*
* Library: VNLib
* Package: VNLib.Plugins.Extensions.Data
* File: TableManager.cs
*
* TableManager.cs is part of VNLib.Plugins.Extensions.Data which is part of the larger
* VNLib collection of libraries and utilities.
*
* VNLib.Plugins.Extensions.Data is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* VNLib.Plugins.Extensions.Data is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see https://www.gnu.org/licenses/.
*/
using System;
using System.Data.Common;
namespace VNLib.Plugins.Extensions.Data.SQL
{
/// <summary>
/// A class that contains basic structures for interacting with an SQL driven database
/// </summary>
public abstract class TableManager
{
private readonly Func<DbConnection> Factory;
protected string Insert { get; set; }
protected string Select { get; set; }
protected string Update { get; set; }
protected string Delete { get; set; }
/// <summary>
/// The name of the table specified during initialized
/// </summary>
protected string TableName { get; }
protected TableManager(Func<DbConnection> factory, string tableName)
{
this.Factory = factory ?? throw new ArgumentNullException(nameof(factory));
this.TableName = !string.IsNullOrWhiteSpace(tableName) ? tableName : throw new ArgumentNullException(nameof(tableName));
}
protected TableManager(Func<DbConnection> factory)
{
this.Factory = factory ?? throw new ArgumentNullException(nameof(factory));
this.TableName = "";
}
/// <summary>
/// Opens a new <see cref="DbConnection"/> by invoking the factory callback method
/// </summary>
/// <returns>The open connection</returns>
protected DbConnection GetConnection()
{
return Factory();
}
}
}
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