/// <summary>
/// 根据数据库提供者和连接字符串创建数据库对象
/// </summary>
/// <param name="connectionString">数据库连接字符串</param>
/// <param name="dbProvider">数据库提供者</param>
/// <exception cref="DatabaseNotSupportedException">指定数据库不被支持</exception>
/// <returns>数据库对象</returns>
public static AbstractDatabase CreateDatabase(DbProviderFactory dbProvider, String connectionString)
{
DatabaseType dbType = DatabaseTypeHelper.InternalGetDatabaseType(dbProvider, connectionString);
switch (dbType)
{
case DatabaseType.Access:
return(new AccessDatabase(dbProvider, connectionString));
case DatabaseType.MySQL:
return(new MySQLDatabase(dbProvider, connectionString));
case DatabaseType.Oracle:
return(new OracleDatabase(dbProvider, connectionString));
case DatabaseType.SQLite:
return(new SQLiteDatabase(dbProvider, connectionString));
case DatabaseType.SqlServer:
return(new SqlServerDatabase(dbProvider, connectionString));
case DatabaseType.SqlServerCe:
return(new SqlServerCeDatabase(dbProvider, connectionString));
default:
throw new DatabaseNotSupportedException("This database is not supported!");
}
}
/// <summary>
/// 初始化数据库类
/// </summary>
/// <param name="connectionString">数据库连接字符串</param>
/// <param name="dbProvider">数据库提供者</param>
internal Database(String connectionString, DbProviderFactory dbProvider)
{
this._connectionString = connectionString;
this._dbProvider = dbProvider;
this._dbtype = DatabaseTypeHelper.InternalGetDatabaseType(this._connectionString, this._dbProvider);
if (this._dbtype == DatabaseType.Unknown)
{
throw new DatabaseNotSupportException("This database is not supported!");
}
}
