topic Node service in Alfresco Archive https://connect.hyland.com/t5/alfresco-archive/node-service/m-p/43614#M23787 <HTML><HEAD></HEAD><BODY><SPAN>Hi,</SPAN><BR /><BR /><SPAN>I'm just trying to perform a query on nodes to get its properties. I looked at the sdk web service samples, and tried with this code :</SPAN><BR /><BR /><PRE class="language-none line-numbers"><CODE>public class Tag extends SamplesBase<BR />{<BR />&nbsp;&nbsp;&nbsp;static FacesContext context = FacesContext.getCurrentInstance();<BR />&nbsp;&nbsp;&nbsp;static NodeService nodeService = Repository.getServiceRegistry(context).getNodeService();<BR /><BR />&nbsp;&nbsp;&nbsp;//static NodeService nodeService;<BR />&nbsp;&nbsp;&nbsp;static StoreRef storeRef;<BR />&nbsp;&nbsp;&nbsp;<BR />&nbsp;&nbsp;&nbsp; public static void main(String[] args) <BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; throws Exception<BR />&nbsp;&nbsp;&nbsp; {<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; // Start the session<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; AuthenticationUtils.startSession(USERNAME, PASSWORD);<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; try<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; // Make sure smaple data has been created<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; createSampleData();<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; NodeRef nodeRef = nodeService.getRootNode(storeRef); <BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; NodeRef categoryRef = (NodeRef)nodeService.getProperty(nodeRef, QName.createQName("{extension.tags}", "tags")); <BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; finally<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; // End the session<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; AuthenticationUtils.endSession();<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }<BR />&nbsp;&nbsp;&nbsp; }<BR /><SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN></CODE></PRE><BR /><SPAN>but I can't make it work, I guess because I can't initialize NodeService, in this case I get this exception :</SPAN><BR /><PRE class="language-none line-numbers"><CODE>java.lang.ExceptionInInitializerError<BR />Caused by: java.lang.NullPointerException<BR />&nbsp;&nbsp;&nbsp;at org.springframework.web.jsf.FacesContextUtils.getWebApplicationContext(FacesContextUtils.java:47)<BR />&nbsp;&nbsp;&nbsp;at org.springframework.web.jsf.FacesContextUtils.getRequiredWebApplicationContext(FacesContextUtils.java:77)<BR />&nbsp;&nbsp;&nbsp;at org.alfresco.web.bean.repository.Repository.getServiceRegistry(Repository.java:404)<BR />&nbsp;&nbsp;&nbsp;at org.alfresco.sample.webservice.Tag.&lt;clinit&gt;(Tag.java:61)<BR />Exception in thread "main" <SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN></CODE></PRE><BR /><SPAN>Any help is much appreciated.</SPAN></BODY></HTML> Wed, 07 Feb 2007 14:23:03 GMT aznk 2007-02-07T14:23:03Z Node service https://connect.hyland.com/t5/alfresco-archive/node-service/m-p/43614#M23787 Hi,I'm just trying to perform a query on nodes to get its properties. I looked at the sdk web service samples, and tried with this code <IMG id="smileytongue" class="emoticon emoticon-smileytongue" src="https://migration33.stage.lithium.com/i/smilies/16x16_smiley-tongue.png" alt="Smiley Tongue" title="Smiley Tongue" />ublic class Tag extends SamplesBase{&nbsp;&nbsp;&nbsp;static FacesContext context = FacesContext.getCurrentInstance();&nbsp;&nbsp;&nbsp;static NodeService nodeService = Repository.getServiceRe Wed, 07 Feb 2007 14:23:03 GMT https://connect.hyland.com/t5/alfresco-archive/node-service/m-p/43614#M23787 aznk 2007-02-07T14:23:03Z Re: Node service https://connect.hyland.com/t5/alfresco-archive/node-service/m-p/43615#M23788 <HTML><HEAD></HEAD><BODY><SPAN>Hi,</SPAN><BR /><BR /><SPAN>I think you may have got a little confused here as you are mixing Java API code with web service calls.</SPAN><BR /><BR /><SPAN>If you want to access node information via the web service API you should be using the RepositoryWebService, not the node service directly (the node service is part of our native Java API).</SPAN><BR /><BR /><SPAN>Cheers,</SPAN><BR /><SPAN>Roy</SPAN></BODY></HTML> Thu, 08 Feb 2007 11:17:44 GMT https://connect.hyland.com/t5/alfresco-archive/node-service/m-p/43615#M23788 rwetherall 2007-02-08T11:17:44Z Re: Node service https://connect.hyland.com/t5/alfresco-archive/node-service/m-p/43616#M23789 <HTML><HEAD></HEAD><BODY><SPAN>Hi Roy,</SPAN><BR /><SPAN>Thanks for your answer.</SPAN><BR /><SPAN>Someone advised me to create a component generator that performs my query (get property values of an aspect).</SPAN><BR /><SPAN>Could you give me some guidelines ? I am a bit confused about all this…</SPAN></BODY></HTML> Thu, 08 Feb 2007 13:12:04 GMT https://connect.hyland.com/t5/alfresco-archive/node-service/m-p/43616#M23789 aznk 2007-02-08T13:12:04Z