80 lines
3.8 KiB
C#
80 lines
3.8 KiB
C#
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#region CPL License
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/*
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Nuclex Framework
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Copyright (C) 2002-2014 Nuclex Development Labs
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This library is free software; you can redistribute it and/or
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modify it under the terms of the IBM Common Public License as
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published by the IBM Corporation; either version 1.0 of the
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License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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IBM Common Public License for more details.
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You should have received a copy of the IBM Common Public
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License along with this library
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*/
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#endregion
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using System;
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using System.Collections.Generic;
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namespace Nuclex.Support.Configuration {
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/// <summary>Interface by which settings and configuration data can be accessed</summary>
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public interface ISettingsStore {
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/// <summary>Enumerates the categories defined in the configuration</summary>
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/// <returns>An enumerable list of all used categories</returns>
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IEnumerable<string> EnumerateCategories();
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/// <summary>Enumerates the options stored under the specified category</summary>
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/// <param name="category">Category whose options will be enumerated</param>
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/// <returns>An enumerable list of all options in the category</returns>
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IEnumerable<OptionInfo> EnumerateOptions(string category = null);
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/// <summary>Retrieves the value of the specified option</summary>
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/// <typeparam name="TValue">Type the option will be converted to</typeparam>
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/// <param name="category">Category the option can be found in. Can be null.</param>
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/// <param name="optionName">Name of the option that will be looked up</param>
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/// <returns>The value of the option with the specified name</returns>
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TValue Get<TValue>(string category, string optionName);
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/// <summary>Tries to retrieve the value of the specified option</summary>
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/// <typeparam name="TValue">Type the option will be converted to</typeparam>
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/// <param name="category">Category the option can be found in. Can be null.</param>
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/// <param name="optionName">Name of the option that will be looked up</param>
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/// <param name="value">Will receive the value of the option, if found</param>
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/// <returns>
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/// True if the option existed and its value was written into the <paramref name="value" />
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/// parameter, false otherwise
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/// </returns>
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bool TryGet<TValue>(string category, string optionName, out TValue value);
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/// <summary>Saves an option in the settings store</summary>
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/// <typeparam name="TValue">Type of value that will be saved</typeparam>
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/// <param name="category">Category the option will be placed in. Can be null.</param>
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/// <param name="optionName">Name of the option that will be saved</param>
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/// <param name="value">The value under which the option will be saved</param>
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void Set<TValue>(string category, string optionName, TValue value);
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/// <summary>Removes the option with the specified name</summary>
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/// <param name="category">Category the option is found in. Can be null.</param>
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/// <param name="optionName">Name of the option that will be removed</param>
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/// <returns>True if the option was found and removed</returns>
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bool Remove(string category, string optionName);
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}
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} // namespace Nuclex.Support.Configuration
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#if WANT_TO_SUPPORT_MESSED_UP_CONFIGURATION_FILES
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/// <remarks>
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/// Some settings stores allow multiple options with the same name to exist.
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/// If you request a collection of values (IEnumerable, ICollection, IList or their
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/// generic variants), you will be given a collection of all values appearing
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/// in the scope you specified.
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/// </remarks>
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#endif
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