From 44c0745954ba17530bda8fa48555ceb54271b4c8 Mon Sep 17 00:00:00 2001
From: hns <hannesw@gmail.com>
Date: Mon, 7 Apr 2008 19:50:57 +0000
Subject: [PATCH] * Set parent on group nodes for transient parents. Fixes
 NullPointerException   in Relation.setConstraints().

---
 src/helma/objectmodel/db/Node.java | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/src/helma/objectmodel/db/Node.java b/src/helma/objectmodel/db/Node.java
index 4e9a7b60..fb6d2077 100644
--- a/src/helma/objectmodel/db/Node.java
+++ b/src/helma/objectmodel/db/Node.java
@@ -1241,9 +1241,13 @@ public final class Node implements INode, Serializable {
                 boolean relational = groupbyMapping.getSubnodeMapping().isRelational();
 
                 if (relational || create) {
-                    Node node = relational && persistent ?
-                            new Node(this, sid, nmgr, null) :
-                            new Node(sid, null, nmgr);
+                    Node node;
+                    if (relational && persistent) {
+                        node = new Node(this, sid, nmgr, null);
+                    } else {
+                        node = new Node(sid, null, nmgr);
+                        node.setParent(this);
+                    }
 
                     // set "groupname" property to value of groupby field
                     node.setString("groupname", sid);