Java-backed webscript to change property of versioned document

As we transition to the new Hyland Community, some post links may be temporarily disrupted as we finalize redirects. We apologize for the inconvenience and are working to resolve this as quickly as possible. Details.

metar

hey,

I have a versioned document (1.0, 1.1, 1.2, 1.3, …) based on a custom model and I want to change properties of older versions (eg 1.1).
Well, I thought thats not a big deal but im stuck

I im trying to realize this with a java backed webscript.
I am able to find the corresponding NodeRef to the passed version.


When I try to set the property I get the following exception:

 java.lang.UnsupportedOperationException: This operation is not supported by a version store implementation of the node service.
   at org.alfresco.repo.version.NodeServiceImpl.setProperty(NodeServiceImpl.java:466)
…
‍‍‍‍

So its not allowed to do any modifications on a "frozen" Node?
From what I read in the forums its possible to do so. But how?




here is my testcode

   //custom model
   static final String NAMESPACE = "http://www.sourcesense.com/model/1.0";
   static final QName TYPE_AUTHORTY = QName.createQName(NAMESPACE, "authority");


   public void execute(WebScriptRequest req, WebScriptResponse res)
         throws IOException {


      final String nodeUuid = (String) req.getParameter("uuid");
      final String versionLabel = (String) req.getParameter("versionLabel");
      final String authority = (String) req.getParameter("authority");

      String nodePath = "workspace://SpacesStore/" + nodeUuid;

      VersionHistory versionHistory = registry.getVersionService().getVersionHistory(new NodeRef(nodePath));
      if(null!= versionHistory){

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Iterator<Version> versionIterator = versionHistory.getAllVersions().iterator();
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Version version;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;while(versionIterator.hasNext()){
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;version = versionIterator.next();
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if(version.getVersionLabel().equals(versionLabel)){
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;System.out.println("Trying to change Property of version: "+versionLabel);
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;NodeRef node = version.getFrozenStateNodeRef();
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;registry.getNodeService().setProperty(node, TYPE_AUTHORTY, authority);
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}
&nbsp;&nbsp;&nbsp;}
‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

and the request

http://localhost:8080/alfresco/service/demo/changeProperties?uuid=da8b67e3-7f72-43b3-bc00-7a85fd5a20ef&versionLabel=1.1&authority=my_new_value
‍‍

thank you

kaynezhang

A "frozen" node is not editable ,if you want to modify it ,you should first revert the version.