From 43a39cb7e434812262dd30ccb11d59f536ad7116 Mon Sep 17 00:00:00 2001
From: Harald Wolff <haraldwolff@skyoffice>
Date: Tue, 19 Nov 2019 11:39:12 +0100
Subject: [PATCH] Add Hooks (createObjectHook,filterFieldsHook) to ClassMapping

---
 odb/ng/mappings/ClassMapping.cs | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/odb/ng/mappings/ClassMapping.cs b/odb/ng/mappings/ClassMapping.cs
index d7f46d6..aaee28d 100644
--- a/odb/ng/mappings/ClassMapping.cs
+++ b/odb/ng/mappings/ClassMapping.cs
@@ -19,6 +19,9 @@ namespace ln.types.odb.ng.mappings
 
         List<FieldInfo> mappedFields = new List<FieldInfo>();
 
+        Func<Mapper, Document, object> createObjectHook;
+        Func<FieldInfo, bool> filterFieldsHook;
+
         public ClassMapping(Type type)
         {
             Logging.Log(LogLevel.DEBUG, "Constructing ClassMapping for {0}",type);
@@ -27,10 +30,18 @@ namespace ln.types.odb.ng.mappings
             AddFields(type);
         }
 
+        public ClassMapping(Type type, Func<Mapper, Document, object> createObjectHook, Func<FieldInfo, bool> filterFieldsHook)
+            :this(type)
+        {
+            this.createObjectHook = createObjectHook;
+            this.filterFieldsHook = filterFieldsHook;
+        }
+
         private void AddFields(Type type)
         {
             foreach (FieldInfo fieldinfo in type.GetFields(BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public))
             {
+                if ((filterFieldsHook == null) || filterFieldsHook(fieldinfo))
                 mappedFields.Add(fieldinfo);
             }
 
@@ -56,7 +67,7 @@ namespace ln.types.odb.ng.mappings
                     return o;
             }
 
-            return Activator.CreateInstance(MappedType, true);
+            return (createObjectHook != null) ? createObjectHook(mapper,document) : Activator.CreateInstance(MappedType, true);
         }
 
         public object UnmapValue(Mapper mapper,ODBEntity oval)