repo.cs

namespace WhiskeyRecommender.Persistence
{
    /// <summary>
    /// Simple base interface that defines standard operations that are performed by all repositories in the system.
    /// </summary>
    public interface IRepository<T>
    {
        /// <summary>
        /// Returns an instance of <c>T</c> that has the provided id.
        /// </summary>
        T FindById(Guid id);

        /// <summary>
        /// Returns a <see cref="IQueryable"/> that allows querying all instances of type <c>T</c>.
        /// </summary>
        /// <returns></returns>
        IQueryable<T> All();

        /// <summary>
        /// Returns all <c>T</c> that match the provided criteria.
        /// </summary>
        IQueryable<T> Query(Expression<Func<T, bool>> criteria);
    }
}