using System.Collections.Generic;

namespace ChadSoft.Data
{
    ///<summary>
    /// A repository of objects
    ///</summary>
    ///<typeparam name="T">Type of objects being handled in the repository</typeparam>
    public interface IRepository<T>
    {
        ///<summary>
        /// Get all of the current objects.
        ///</summary>
        ///<returns>All of the current objects.</returns>
        IEnumerable<T> GetAll();

        ///<summary>
        /// Find the stored objects that meet a particular criteria.
        ///</summary>
        ///<param name="criteria">The criteria used to find stored objects</param>
        ///<returns>Objects that meet the criteria</returns>
        IEnumerable<T> Find(ICriteria criteria);

        ///<summary>
        /// Save an object to the repository
        ///</summary>
        ///<param name="obj"></param>
        void Save(T obj);
    }
}