IOperationContextState.cs

namespace WcfApplicationInsights
{
    using System;
    using System.Collections.Generic;
    using System.Text;

    /// <summary>
    /// Allows a TelemetryModule or TelemetryInitializer to store temporary
    /// state between request/response processing.
    /// </summary>
    public interface IOperationContextState
    {
        /// <summary>
        /// Store a value in the context.
        /// </summary>
        /// <param name="key">The key to store the state under.</param>
        /// <param name="value">The value to store.</param>
        void SetState(string key, object value);

        /// <summary>
        /// Retrieve a value from the context.
        /// </summary>
        /// <typeparam name="T">The type of value.</typeparam>
        /// <param name="key">The key the state is stored under.</param>
        /// <param name="value">The value, if found.</param>
        /// <returns>True if the specified key was found, false otherwise.</returns>
        bool TryGetState<T>(string key, out T value);
    }
}