100 lines
4.9 KiB
C#
100 lines
4.9 KiB
C#
#region Apache License 2.0
|
|
/*
|
|
Nuclex .NET Framework
|
|
Copyright (C) 2002-2024 Markus Ewald / Nuclex Development Labs
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
#endregion // Apache License 2.0
|
|
|
|
using System;
|
|
using System.Collections.Generic;
|
|
|
|
namespace Nuclex.Support.Settings {
|
|
|
|
/// <summary>Interface by which settings and configuration data can be accessed</summary>
|
|
/// <remarks>
|
|
/// <para>
|
|
/// The intended usage pattern for options is for your application to simply read and
|
|
/// write whatever options it needs using the type it expects them to be.
|
|
/// </para>
|
|
/// <para>
|
|
/// When you enumerate the options appearing under a category, the settings store will
|
|
/// try to guess the likely type of an option, but this is not always accurate. For
|
|
/// example, assigning the text 'true' to an option in a .cfg or .ini file could mean
|
|
/// that the option is a boolean or it could simply be a coincidence. When you read
|
|
/// this value as a boolean, the settings store will correctly convert it to a boolean,
|
|
/// when you read it as a string, you will get back "true" in plain text.
|
|
/// </para>
|
|
/// <para>
|
|
/// Which types of values a settings store can accept can also change between different
|
|
/// settings store implementations. The windows registry supports string and byte
|
|
/// arrays whereas configuration files have no standardized way of holding these.
|
|
/// Any property store must support a minimal subset including booleans, integers,
|
|
/// floating point values and strings.
|
|
/// </para>
|
|
/// </remarks>
|
|
public interface ISettingsStore {
|
|
|
|
/// <summary>Enumerates the categories defined in the configuration</summary>
|
|
/// <returns>An enumerable list of all used categories</returns>
|
|
IEnumerable<string> EnumerateCategories();
|
|
|
|
/// <summary>Enumerates the options stored under the specified category</summary>
|
|
/// <param name="category">Category whose options will be enumerated</param>
|
|
/// <returns>An enumerable list of all options in the category</returns>
|
|
IEnumerable<OptionInfo> EnumerateOptions(string category = null);
|
|
|
|
/// <summary>Retrieves the value of the specified option</summary>
|
|
/// <typeparam name="TValue">Type the option will be converted to</typeparam>
|
|
/// <param name="category">Category the option can be found in. Can be null.</param>
|
|
/// <param name="optionName">Name of the option that will be looked up</param>
|
|
/// <returns>The value of the option with the specified name</returns>
|
|
TValue Get<TValue>(string category, string optionName);
|
|
|
|
/// <summary>Tries to retrieve the value of the specified option</summary>
|
|
/// <typeparam name="TValue">Type the option will be converted to</typeparam>
|
|
/// <param name="category">Category the option can be found in. Can be null.</param>
|
|
/// <param name="optionName">Name of the option that will be looked up</param>
|
|
/// <param name="value">Will receive the value of the option, if found</param>
|
|
/// <returns>
|
|
/// True if the option existed and its value was written into the <paramref name="value" />
|
|
/// parameter, false otherwise
|
|
/// </returns>
|
|
bool TryGet<TValue>(string category, string optionName, out TValue value);
|
|
|
|
/// <summary>Saves an option in the settings store</summary>
|
|
/// <typeparam name="TValue">Type of value that will be saved</typeparam>
|
|
/// <param name="category">Category the option will be placed in. Can be null.</param>
|
|
/// <param name="optionName">Name of the option that will be saved</param>
|
|
/// <param name="value">The value under which the option will be saved</param>
|
|
void Set<TValue>(string category, string optionName, TValue value);
|
|
|
|
/// <summary>Removes the option with the specified name</summary>
|
|
/// <param name="category">Category the option is found in. Can be null.</param>
|
|
/// <param name="optionName">Name of the option that will be removed</param>
|
|
/// <returns>True if the option was found and removed</returns>
|
|
bool Remove(string category, string optionName);
|
|
|
|
}
|
|
|
|
} // namespace Nuclex.Support.Settings
|
|
|
|
#if WANT_TO_SUPPORT_MESSED_UP_CONFIGURATION_FILES
|
|
/// <remarks>
|
|
/// Some settings stores allow multiple options with the same name to exist.
|
|
/// If you request a collection of values (IEnumerable, ICollection, IList or their
|
|
/// generic variants), you will be given a collection of all values appearing
|
|
/// in the scope you specified.
|
|
/// </remarks>
|
|
#endif |