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27 lines
1.3 KiB
27 lines
1.3 KiB
namespace MsgReader.Mime.Traverse
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{
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/// <summary>
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/// This interface describes a MessageTraverser which is able to traverse a Message structure
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/// and deliver some answer given some question.
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/// </summary>
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/// <typeparam name="TAnswer">This is the type of the answer you want to have delivered.</typeparam>
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/// <typeparam name="TQuestion">This is the type of the question you want to have answered.</typeparam>
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public interface IQuestionAnswerMessageTraverser<in TQuestion, out TAnswer>
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{
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/// <summary>
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/// Call this when you want to apply this traverser on a <see cref="Message"/>.
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/// </summary>
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/// <param name="message">The <see cref="Message"/> which you want to traverse. Must not be <see langword="null"/>.</param>
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/// <param name="question">The question</param>
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/// <returns>An answer</returns>
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TAnswer VisitMessage(Message message, TQuestion question);
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/// <summary>
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/// Call this when you want to apply this traverser on a <see cref="MessagePart"/>.
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/// </summary>
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/// <param name="messagePart">The <see cref="MessagePart"/> which you want to traverse. Must not be <see langword="null"/>.</param>
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/// <param name="question">The question</param>
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/// <returns>An answer</returns>
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TAnswer VisitMessagePart(MessagePart messagePart, TQuestion question);
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}
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} |