topic Re: Cannot find NodeService instance trying to reproduce Alfresco Wiki examples in Alfresco Archive

Cannot find NodeService instance trying to reproduce Alfresco Wiki examples

ardamose123 — Thu, 11 Jul 2013 22:50:28 GMT

I was following the instructions in "Custom Actions" (http://wiki.alfresco.com/wiki/Custom_Actions). However, when I get to the executeImpl(…)‍ method, Java cannot find the this.nodeService‍ object.public void executeImpl(Action action, NodeRef actionedUponNodeRef){ if (this.nodeService.exists(act

Re: Cannot find NodeService instance trying to reproduce Alfresco Wiki examples

scouil — Fri, 12 Jul 2013 08:21:55 GMT

Hi Ardamose,

Actually you'll need a bit of spring background to understand it.
Your class, to be picked up by Alfresco, will need to be declared in a config file via a been. It will be something like:

<bean id="add-aspect" class="org.alfresco.repo.action.executer.AddAspectActionExecuter" parent="action-executer"></bean>‍

With this bean, you can inject other beans that will be available in your class. In our case: the nodeService


<bean id="add-aspect" class="org.alfresco.repo.action.executer.AddAspectActionExecuter" parent="action-executer">
    <property name="nodeService">
        <ref bean="nodeService" />
    </property>
</bean>
‍‍‍‍‍‍‍

And for spring to be able to inject it, you'll need the appropriate setter in jour java code.
So you'll want to add this at the begining of your java class:


private NodeService nodeService;
public void setNodeService(NodeService nodeService)
    {
        this.nodeService = nodeService;
    }
‍‍‍‍‍‍‍

Then you should be able to access your

this.nodeService‍

Re: Cannot find NodeService instance trying to reproduce Alfresco Wiki examples

ardamose123 — Mon, 15 Jul 2013 21:51:18 GMT

Just as you pointed out, I was missing the Spring beans configuration. Many thanks!