Add new configuration API for Transactional Session v3.3.0

Author: Christian

src/NServiceBus.NHibernate.Tests/ApprovalFiles/APIApprovals.Approve.approved.txt

@@ -26,6 +26,7 @@ namespace NServiceBus
     }
     public static class OutboxSettingsExtensions
     {
+        public static void EndpointName(this NServiceBus.Outbox.OutboxSettings configuration, string endpointName) { }
         public static void TransactionIsolationLevel(this NServiceBus.Outbox.OutboxSettings outboxSettings, System.Data.IsolationLevel isolationLevel) { }
         public static void UsePessimisticConcurrencyControl(this NServiceBus.Outbox.OutboxSettings outboxSettings) { }
         public static void UseTransactionScope(this NServiceBus.Outbox.OutboxSettings outboxSettings) { }

src/NServiceBus.NHibernate/Outbox/NHibernateOutbox.cs

@@ -24,7 +24,7 @@ class NHibernateOutbox : Feature
         internal const string OutboxTransactionModeSettingsKey = "NServiceBus.NHibernate.OutboxTransactionScopeMode";
         internal const string OutboxTransactionIsolationLevelSettingsKey = "NServiceBus.NHibernate.OutboxTransactionIsolationLevel";
         internal const string OutboxTransactionScopeModeIsolationLevelSettingsKey = "NServiceBus.NHibernate.OutboxTransactionScopeModeIsolationLevel";
-
+        internal const string EndpointNameKey = "NHibernate.Outbox.EndpointName";
         /// <summary>
         /// Creates a new instance of the feature
         /// </summary>
@@ -73,7 +73,8 @@ protected override void Setup(FeatureConfigurationContext context)
             context.Services.AddSingleton<IOutboxStorage>(sp =>
             {
                 var holder = sp.GetRequiredService<SessionFactoryHolder>();
-                var persister = persisterFactory.Create(holder.SessionFactory, context.Settings.EndpointName(), pessimisticMode, transactionScopeMode, adoIsolationLevel, transactionScopeIsolationLevel);
+                var endpointName = context.Settings.GetOrDefault<string>(EndpointNameKey) ?? context.Settings.EndpointName();
+                var persister = persisterFactory.Create(holder.SessionFactory, endpointName, pessimisticMode, transactionScopeMode, adoIsolationLevel, transactionScopeIsolationLevel);                
                 return persister;
             });
 

src/NServiceBus.NHibernate/Outbox/OutboxSettingsExtensions.cs

@@ -71,5 +71,18 @@ or IsolationLevel.Snapshot
             outboxSettings.GetSettings().Set(NHibernateOutbox.OutboxTransactionModeSettingsKey, true);
             outboxSettings.GetSettings().Set(NHibernateOutbox.OutboxTransactionScopeModeIsolationLevelSettingsKey, isolationLevel);
         }
+
+        /// <summary>
+        /// Sets the endpoint name used to generate qualified message IDs, ensuring uniqueness and preventing ID collisions. 
+        /// By default, this value is automatically managed and set to the originating endpoint's name. 
+        /// This function allows overriding the default endpoint name for specific scenarios, such as configuring a transactional session processor endpoint.
+        /// </summary>
+        public static void EndpointName(this OutboxSettings configuration, string endpointName)
+        {
+            ArgumentNullException.ThrowIfNull(configuration);
+            ArgumentException.ThrowIfNullOrWhiteSpace(endpointName);
+
+            configuration.GetSettings().Set(NHibernateOutbox.EndpointNameKey, endpointName);
+        }
     }
 }