For restoring a node, a IGNOREed child node throws ConstrainViolationException

[Roland Kofler]

A version IGNORED child node should remain in the node tree if you 
revert to a previous version. This is stated in the subchapter 8.2.11.5 
of JCR170.
I've found that jackrabbit removes the IGNORED child node after a 
revert, wich is wrong.

Neverthenless I have to say: You are great!
Roland


doing this:

public void revertToVersion(Node jcrNode, NodeHolder nodeHolder) {
       try {
           jcrNode.restore((Version) 
(nodeHolder.getJcrNode().getParent()), false);
       } catch (RepositoryException e) {
           throw new IllegalStateException(e);
       }
   }

on that:

 <!-- PAGE -->
   <!-- page definition -->
   <nodeType hasOrderableChildNodes="true" isMixin="false" 
name="s1NT:page" primaryItemName="">
       <supertypes>
           <supertype>nt:base</supertype>
           <supertype>mix:referenceable</supertype>
           <supertype>mix:versionable</supertype>
           <supertype>mix:lockable</supertype>
       </supertypes>
       ...
   <!-- similarity results root child node -->
       <childNodeDefinition autoCreated="true" 
defaultPrimaryType="s1NT:similarityRoot" mandatory="true"
                            name="s1:similarityRoot" 
onParentVersion="IGNORE" protected="false" sameNameSiblings="false">
       </childNodeDefinition>
   </nodeType>
...

leads to:

java.lang.IllegalStateException: 
javax.jcr.nodetype.ConstraintViolationException: /s1:pages/s1:page: 
mandatory child node {http://www.systemone.at/jcr}similarityRoot does 
not exist
...
   at 
org.apache.jackrabbit.core.ItemImpl.validateTransientItems(ItemImpl.java:557)
   at org.apache.jackrabbit.core.ItemImpl.save(ItemImpl.java:1131)
   at org.apache.jackrabbit.core.SessionImpl.save(SessionImpl.java:758)
   at 
org.apache.jackrabbit.core.NodeImpl.internalRestore(NodeImpl.java:3502)
   at org.apache.jackrabbit.core.NodeImpl.restore(NodeImpl.java:2848)
   at 
at.systemone.wiki.node.PageNodeWorker.revertToVersion(PageNodeWorker.java:21)
   ... 18 more