U4-8447 - prepare for NuCache (work-in-progress)

src/Umbraco.Web/PublishedCache/IPublishedMemberCache.cs

@@ -0,0 +1,35 @@
+using System.Xml.XPath;
+using Umbraco.Core.Models;
+using Umbraco.Core.Models.PublishedContent;
+
+namespace Umbraco.Web.PublishedCache
+{
+    public interface IPublishedMemberCache : IXPathNavigable
+    {
+        IPublishedContent GetByProviderKey(object key);
+        IPublishedContent GetById(int memberId);
+        IPublishedContent GetByUsername(string username);
+        IPublishedContent GetByEmail(string email);
+        IPublishedContent GetByMember(IMember member);
+
+        XPathNavigator CreateNavigator(bool preview);
+
+        // if the node does not exist, return null
+        XPathNavigator CreateNodeNavigator(int id, bool preview);
+
+        /// <summary>
+        /// Gets a content type identified by its unique identifier.
+        /// </summary>
+        /// <param name="id">The content type unique identifier.</param>
+        /// <returns>The content type, or null.</returns>
+        PublishedContentType GetContentType(int id);
+
+        /// <summary>
+        /// Gets a content type identified by its alias.
+        /// </summary>
+        /// <param name="alias">The content type alias.</param>
+        /// <returns>The content type, or null.</returns>
+        /// <remarks>The alias is case-insensitive.</remarks>
+        PublishedContentType GetContentType(string alias);
+    }
+}