how to get values of a property ?

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.

aznk

Hello,

I've defined a custom aspect which has a tag:tags property:

      
<aspect name="tag:taggable">
         <title>Taggable</title>
         <properties>
            <property name="tag:tags">
               <title>Tags</title>
               <type>d:text</type>
               <multiple>true</multiple>
            </property>
         </properties>
</aspect>‍‍‍‍‍‍‍‍‍‍‍

In the node browser, I performed the query "//@tag:tags" with the selectnode, and it returns me all nodes that have this property.
I need to retrieve all values of these nodes, and also tried with the xpath, but it doesn't work :
Search failed due to: java.lang.UnsupportedOperationException
How could we access these values ? I also tried with Lucene but it gave me only the nodes that had the property/aspect.

aznk

Refering to the wiki :
http://wiki.alfresco.com/wiki/Search_Documentation
I saw that we could use the node service (selectnode) with the following example :

// A name space resolver is required - this could be the name space service
DynamicNamespacePrefixResolver namespacePrefixResolver = new DynamicNamespacePrefixResolver(null);
namespacePrefixResolver.addDynamicNamespace(NamespaceService.ALFRESCO_PREFIX, NamespaceService.ALFRESCO_URI);
namespacePrefixResolver.addDynamicNamespace(NamespaceService.ALFRESCO_TEST_PREFIX, NamespaceService.ALFRESCO_TEST_URI);

// Select all nodes below the context node
List<ChildAssocRef> answer =  searchService.selectNodes(rootNodeRef, "*", null, namespacePrefixResolver, false);   
// Find all the property values for @alftest:animal    
List<Serializable> attributes = searchService.selectProperties(rootNodeRef, "//@alftest:animal", null, namespacePrefixResolver, false);‍‍‍‍‍‍‍‍‍

But I don't know where some variables come from : ALFRESCO_TEST_PREFIX and searchService.
I tried to put this code into the SDK but it doesn't work.
Are there any samples on how to use node service that could help me ? I haven't seen the answers to my question in the SDK WebServiceSamples.