fixes for demo data explorer

modules/activiti-explorer/src/main/java/org/activiti/explorer/demo/DemoDataGenerator.java

@@ -49,8 +49,7 @@ public class DemoDataGenerator implements ModelDataJsonConstants {
   protected boolean createDemoProcessDefinitions;
   protected boolean createDemoModels;
   
-  public void setProcessEngine(ProcessEngine processEngine) {
-    this.processEngine = processEngine;
+  public void init() {
     this.identityService = processEngine.getIdentityService();
     this.repositoryService = processEngine.getRepositoryService();
     
@@ -68,6 +67,10 @@ public class DemoDataGenerator implements ModelDataJsonConstants {
     }
   }
   
+  public void setProcessEngine(ProcessEngine processEngine) {
+    this.processEngine = processEngine;
+  }
+  
   public void setCreateDemoUsersAndGroups(boolean createDemoUsersAndGroups) {
     this.createDemoUsersAndGroups = createDemoUsersAndGroups;
   }

modules/activiti-webapp-explorer2/src/main/webapp/WEB-INF/activiti-standalone-context.xml

@@ -9,7 +9,7 @@
        
   <!-- This Spring config file is NOT used in Alfresco, as the Activiti engine is wired in a different way there -->
        
-  <bean id="demoDataGenerator" class="org.activiti.explorer.demo.DemoDataGenerator">
+  <bean id="demoDataGenerator" class="org.activiti.explorer.demo.DemoDataGenerator" init-method="init">
     <property name="processEngine" ref="processEngine" />
     <property name="createDemoUsersAndGroups" value="true" />
     <property name="createDemoProcessDefinitions" value="true" />