closes #314 akka-spring to support active object lifecycle management

closes #315 akka-spring to support configuration of shutdown callback method

akka-core/src/main/scala/actor/ActiveObject.scala

@@ -37,6 +37,7 @@ object Annotations {
 final class ActiveObjectConfiguration {
   private[akka] var _timeout: Long = Actor.TIMEOUT
   private[akka] var _restartCallbacks: Option[RestartCallbacks] = None
+  private[akka] var _shutdownCallback: Option[ShutdownCallback] = None
   private[akka] var _transactionRequired = false
   private[akka] var _host: Option[InetSocketAddress] = None
   private[akka] var _messageDispatcher: Option[MessageDispatcher] = None
@@ -51,6 +52,11 @@ final class ActiveObjectConfiguration {
     this
   }
 
+  def shutdownCallback(down: String) : ActiveObjectConfiguration = {
+    _shutdownCallback = Some(new ShutdownCallback(down))
+    this
+  }
+
   def makeTransactionRequired() : ActiveObjectConfiguration = {
     _transactionRequired = true;
     this
@@ -153,25 +159,25 @@ object ActiveObject extends Logging {
   private[actor] val AW_PROXY_PREFIX = "$$ProxiedByAW".intern
 
   def newInstance[T](target: Class[T], timeout: Long): T =
-    newInstance(target, actorOf(new Dispatcher(false, None)), None, timeout)
+    newInstance(target, actorOf(new Dispatcher(false)), None, timeout)
 
   def newInstance[T](target: Class[T]): T =
-    newInstance(target, actorOf(new Dispatcher(false, None)), None, Actor.TIMEOUT)
+    newInstance(target, actorOf(new Dispatcher(false)), None, Actor.TIMEOUT)
 
   def newInstance[T](intf: Class[T], target: AnyRef, timeout: Long): T =
-    newInstance(intf, target, actorOf(new Dispatcher(false, None)), None, timeout)
+    newInstance(intf, target, actorOf(new Dispatcher(false)), None, timeout)
 
   def newInstance[T](intf: Class[T], target: AnyRef): T =
-    newInstance(intf, target, actorOf(new Dispatcher(false, None)), None, Actor.TIMEOUT)
+    newInstance(intf, target, actorOf(new Dispatcher(false)), None, Actor.TIMEOUT)
 
   def newRemoteInstance[T](target: Class[T], timeout: Long, hostname: String, port: Int): T =
-    newInstance(target, actorOf(new Dispatcher(false, None)), Some(new InetSocketAddress(hostname, port)), timeout)
+    newInstance(target, actorOf(new Dispatcher(false)), Some(new InetSocketAddress(hostname, port)), timeout)
 
   def newRemoteInstance[T](target: Class[T], hostname: String, port: Int): T =
-    newInstance(target, actorOf(new Dispatcher(false, None)), Some(new InetSocketAddress(hostname, port)), Actor.TIMEOUT)
+    newInstance(target, actorOf(new Dispatcher(false)), Some(new InetSocketAddress(hostname, port)), Actor.TIMEOUT)
 
   def newInstance[T](target: Class[T], config: ActiveObjectConfiguration): T = {
-    val actor = actorOf(new Dispatcher(config._transactionRequired, config._restartCallbacks))
+    val actor = actorOf(new Dispatcher(config._transactionRequired, config._restartCallbacks, config._shutdownCallback))
      if (config._messageDispatcher.isDefined) {
        actor.dispatcher = config._messageDispatcher.get
      }
@@ -179,7 +185,7 @@ object ActiveObject extends Logging {
   }
 
   def newInstance[T](intf: Class[T], target: AnyRef, config: ActiveObjectConfiguration): T = {
-    val actor = actorOf(new Dispatcher(config._transactionRequired, config._restartCallbacks))
+    val actor = actorOf(new Dispatcher(config._transactionRequired, config._restartCallbacks, config._shutdownCallback))
      if (config._messageDispatcher.isDefined) {
        actor.dispatcher = config._messageDispatcher.get
      }
@@ -515,8 +521,6 @@ private[akka] sealed case class AspectInit(
   def this(target: Class[_], actorRef: ActorRef, timeout: Long) = this(target, actorRef, None, timeout)
 }
 
-// FIXME: add @shutdown callback to ActiveObject in which we get the Aspect through 'Aspects.aspectOf(MyAspect.class, targetInstance)' and shuts down the Dispatcher actor
-
 /**
  * AspectWerkz Aspect that is turning POJOs into Active Object.
  * Is deployed on a 'per-instance' basis.
@@ -671,7 +675,7 @@ object Dispatcher {
  * @author <a href="http://jonasboner.com">Jonas Bon&#233;r</a>
  */
 private[akka] class Dispatcher(transactionalRequired: Boolean,
-                               var restartCallbacks: Option[RestartCallbacks],
+                               var restartCallbacks: Option[RestartCallbacks] = None,
                                var shutdownCallback: Option[ShutdownCallback] = None) extends Actor {
   import Dispatcher._
 
@@ -805,12 +809,15 @@ private[akka] class Dispatcher(transactionalRequired: Boolean,
   }
 
   override def shutdown = {
-    AspectInitRegistry.unregister(target.get);
     try {
       if (zhutdown.isDefined) {
         zhutdown.get.invoke(target.get, ZERO_ITEM_OBJECT_ARRAY: _*)
       }
-    } catch { case e: InvocationTargetException => throw e.getCause }
+    } catch {
+      case e: InvocationTargetException => throw e.getCause
+    } finally {
+      AspectInitRegistry.unregister(target.get);
+    }
   }
 
   override def initTransactionalState = {

akka-core/src/test/scala/ActiveObjectLifecycleSpec.scala

@@ -143,5 +143,13 @@ class ActiveObjectLifecycleSpec extends Spec with ShouldMatchers with BeforeAndA
         case e: Exception => { /* test passed */ }
       }
     }
+
+    it("should shutdown non-supervised, non-initialized active object on ActiveObject.stop") {
+      val obj = ActiveObject.newInstance(classOf[SamplePojoAnnotated])
+      ActiveObject.stop(obj)
+      assert(!obj._pre)
+      assert(!obj._post)
+      assert(obj._down)
+    }
   }
 }

akka-spring/src/main/resources/se/scalablesolutions/akka/spring/akka-0.10.xsd

@@ -105,7 +105,7 @@
     </xsd:attribute>
   </xsd:complexType>
 
-  <!-- callbacks -->
+  <!-- restart callbacks -->
   <xsd:complexType name="restart-callbacks-type">
     <xsd:attribute name="pre" type="xsd:string">
       <xsd:annotation>
@@ -123,11 +123,23 @@
     </xsd:attribute>
   </xsd:complexType>
 
+  <!-- shutdown callbacks -->
+  <xsd:complexType name="shutdown-callback-type">
+    <xsd:attribute name="method" type="xsd:string">
+      <xsd:annotation>
+        <xsd:documentation>
+          Shutdown callback method that is called during shut down.
+        </xsd:documentation>
+      </xsd:annotation>
+    </xsd:attribute>
+  </xsd:complexType>
+
   <!-- active object -->
   <xsd:complexType name="active-object-type">
    <xsd:sequence>
       <xsd:element name="remote" type="remote-type" minOccurs="0" maxOccurs="1"/>
       <xsd:element name="restart-callbacks" type="restart-callbacks-type" minOccurs="0" maxOccurs="1"/>
+      <xsd:element name="shutdown-callback" type="shutdown-callback-type" minOccurs="0" maxOccurs="1"/>
       <xsd:element name="dispatcher" type="dispatcher-type" minOccurs="0" maxOccurs="1"/>
       <xsd:element ref="dispatcher" minOccurs="0" maxOccurs="1"/>
       <xsd:element ref="beans:property" minOccurs="0" maxOccurs="unbounded"/>

akka-spring/src/main/scala/ActiveObjectFactoryBean.scala

@@ -5,18 +5,20 @@
 package se.scalablesolutions.akka.spring
 
 import java.beans.PropertyDescriptor
-
 import java.lang.reflect.Method
+
+import reflect.BeanProperty
+
 import org.springframework.beans.BeanWrapperImpl
 import org.springframework.beans.BeanWrapper
 import org.springframework.beans.BeanUtils
-import org.springframework.util.ReflectionUtils
-import org.springframework.util.StringUtils
 import org.springframework.beans.factory.BeanFactory
 import org.springframework.beans.factory.config.AbstractFactoryBean
-import se.scalablesolutions.akka.actor.ActiveObject
+import org.springframework.util.ReflectionUtils
-import reflect.BeanProperty
+import org.springframework.util.StringUtils
-import se.scalablesolutions.akka.config.ScalaConfig.RestartCallbacks
+
+import se.scalablesolutions.akka.actor.{ActiveObjectConfiguration, ActiveObject}
+import se.scalablesolutions.akka.config.ScalaConfig.{ShutdownCallback, RestartCallbacks}
 import se.scalablesolutions.akka.dispatch.MessageDispatcher
 import se.scalablesolutions.akka.util.Logging
 
@@ -25,6 +27,7 @@ import se.scalablesolutions.akka.util.Logging
  *
  * @author michaelkober
  * @author <a href="johan.rask@jayway.com">Johan Rask</a>
+ * @author Martin Krasser
  */
 class ActiveObjectFactoryBean extends AbstractFactoryBean[AnyRef] with Logging {
   import StringReflect._
@@ -36,6 +39,7 @@ class ActiveObjectFactoryBean extends AbstractFactoryBean[AnyRef] with Logging {
   @BeanProperty var transactional: Boolean = false
   @BeanProperty var pre: String = ""
   @BeanProperty var post: String = ""
+  @BeanProperty var shutdown: String = ""
   @BeanProperty var host: String = ""
   @BeanProperty var port: Int = _
   @BeanProperty var lifecycle: String = ""
@@ -67,14 +71,19 @@ class ActiveObjectFactoryBean extends AbstractFactoryBean[AnyRef] with Logging {
     if (hasInterface) argumentList += "i"
     if (hasDispatcher) argumentList += "d"
 
-    setProperties(
+    setProperties(create(argumentList))
-                create(argumentList))
   }
 
   /**
-   * This method manages <property/> element by injecting either
+   * Stop the active object if it is a singleton.
-   * values (<property value="value"/>) and bean references (<property ref="beanId"/>)
    */
+  override def destroy = {
+    if(scope.equals(VAL_SCOPE_SINGLETON)) {
+      ActiveObject.stop(getObject)
+    }
+    super.destroy
+  }
+
   private def setProperties(ref:AnyRef) : AnyRef = {
         log.debug("Processing properties and dependencies for target class %s",target)
         val beanWrapper = new BeanWrapperImpl(ref);
@@ -97,60 +106,45 @@ class ActiveObjectFactoryBean extends AbstractFactoryBean[AnyRef] with Logging {
         ref
   }
 
-// TODO: check if this works in 2.8 (type inferred to Nothing instead of AnyRef here)
-//
-//  private[akka] def create(argList : String) : AnyRef = argList match {
-//    case "r" => ActiveObject.newRemoteInstance(target.toClass, timeout, transactional, host, port, callbacks)
-//    case "ri" => ActiveObject.newRemoteInstance(interface.toClass, target.toClass, timeout, transactional, host, port, callbacks)
-//    case "rd" => ActiveObject.newRemoteInstance(target.toClass, timeout, transactional, dispatcherInstance, host, port, callbacks)
-//    case "rid" => ActiveObject.newRemoteInstance(interface.toClass, target.toClass, timeout, transactional, dispatcherInstance, host, port, callbacks)
-//    case "i" => ActiveObject.newInstance(interface.toClass, target.toClass, timeout, transactional, callbacks)
-//    case "id" => ActiveObject.newInstance(interface.toClass, target.toClass, timeout, transactional, dispatcherInstance, callbacks)
-//    case "d" => ActiveObject.newInstance(target.toClass, timeout, transactional, dispatcherInstance, callbacks)
-//    case _ => ActiveObject.newInstance(target.toClass, timeout, transactional, callbacks)
-//  }
-
   private[akka] def create(argList : String) : AnyRef = {
     if (argList == "r") {
-      ActiveObject.newRemoteInstance(target.toClass, timeout, transactional, host, port, callbacks)
+      ActiveObject.newInstance(target.toClass, createConfig.makeRemote(host, port))
     } else if (argList == "ri" ) {
-      ActiveObject.newRemoteInstance(interface.toClass, aNewInstance(target.toClass), timeout, transactional, host, port, callbacks)
+      ActiveObject.newInstance(interface.toClass, aNewInstance(target.toClass), createConfig.makeRemote(host, port))
     } else if (argList == "rd") {
-      ActiveObject.newRemoteInstance(target.toClass, timeout, transactional, dispatcherInstance, host, port, callbacks)
+      ActiveObject.newInstance(target.toClass, createConfig.makeRemote(host, port).dispatcher(dispatcherInstance))
     } else if (argList == "rid") {
-      ActiveObject.newRemoteInstance(interface.toClass, aNewInstance(target.toClass), timeout, transactional, dispatcherInstance, host, port, callbacks)
+      ActiveObject.newInstance(interface.toClass, aNewInstance(target.toClass), createConfig.makeRemote(host, port).dispatcher(dispatcherInstance))
     } else if (argList == "i") {
-      ActiveObject.newInstance(interface.toClass, aNewInstance(target.toClass), timeout, transactional, callbacks)
+      ActiveObject.newInstance(interface.toClass, aNewInstance(target.toClass), createConfig)
     } else if (argList == "id") {
-      ActiveObject.newInstance(interface.toClass, aNewInstance(target.toClass), timeout, transactional, dispatcherInstance, callbacks)
+      ActiveObject.newInstance(interface.toClass, aNewInstance(target.toClass), createConfig.dispatcher(dispatcherInstance))
     } else if (argList == "d") {
-      ActiveObject.newInstance(target.toClass, timeout, transactional, dispatcherInstance, callbacks)
+      ActiveObject.newInstance(target.toClass, createConfig.dispatcher(dispatcherInstance))
     } else {
-      ActiveObject.newInstance(target.toClass, timeout, transactional, callbacks)
+      ActiveObject.newInstance(target.toClass, createConfig)
     }
   }
 
-  def aNewInstance[T <: AnyRef](clazz: Class[T]) : T = {
+  private[akka] def createConfig: ActiveObjectConfiguration = {
+    val config = new ActiveObjectConfiguration().timeout(timeout)
+    if (hasRestartCallbacks) config.restartCallbacks(pre, post)
+    if (hasShutdownCallback) config.shutdownCallback(shutdown)
+    if (transactional) config.makeTransactionRequired
+    config
+  }
+
+  private[akka] def aNewInstance[T <: AnyRef](clazz: Class[T]) : T = {
       clazz.newInstance().asInstanceOf[T]
   }
 
-  /**
-   * create Option[RestartCallback]
-   */
-  private def callbacks: Option[RestartCallbacks] = {
-    if (hasCallbacks) {
-      val callbacks = new RestartCallbacks(pre, post)
-      Some(callbacks)
-    } else {
-      None
-    }
-  }
-
   private[akka] def isRemote = (host != null) && (!host.isEmpty)
 
   private[akka] def hasInterface = (interface != null) && (!interface.isEmpty)
 
-  private[akka] def hasCallbacks = ((pre != null) && !pre.isEmpty) || ((post != null) && !post.isEmpty)
+  private[akka] def hasRestartCallbacks = ((pre != null) && !pre.isEmpty) || ((post != null) && !post.isEmpty)
+
+  private[akka] def hasShutdownCallback = ((shutdown != null) && !shutdown.isEmpty)
 
   private[akka] def hasDispatcher = (dispatcher != null) && (dispatcher.dispatcherType != null) && (!dispatcher.dispatcherType.isEmpty)
 

akka-spring/src/main/scala/ActiveObjectParser.scala

@@ -13,6 +13,7 @@ import se.scalablesolutions.akka.actor.IllegalActorStateException
  * Parser trait for custom namespace configuration for active-object.
  * @author michaelkober
  * @author <a href="johan.rask@jayway.com">Johan Rask</a>
+ * @author Martin Krasser
  */
 trait ActiveObjectParser extends BeanParser with DispatcherParser {
   import AkkaSpringConfigurationTags._
@@ -25,7 +26,8 @@ trait ActiveObjectParser extends BeanParser with DispatcherParser {
   def parseActiveObject(element: Element): ActiveObjectProperties = {
     val objectProperties = new ActiveObjectProperties()
     val remoteElement = DomUtils.getChildElementByTagName(element, REMOTE_TAG);
-    val callbacksElement = DomUtils.getChildElementByTagName(element, RESTART_CALLBACKS_TAG);
+    val restartCallbacksElement = DomUtils.getChildElementByTagName(element, RESTART_CALLBACKS_TAG);
+    val shutdownCallbackElement = DomUtils.getChildElementByTagName(element, SHUTDOWN_CALLBACK_TAG);
     val dispatcherElement = DomUtils.getChildElementByTagName(element, DISPATCHER_TAG)
     val propertyEntries = DomUtils.getChildElementsByTagName(element,PROPERTYENTRY_TAG)
 
@@ -34,14 +36,18 @@ trait ActiveObjectParser extends BeanParser with DispatcherParser {
       objectProperties.port = mandatory(remoteElement, PORT).toInt
     }
 
-    if (callbacksElement != null) {
+    if (restartCallbacksElement != null) {
-      objectProperties.preRestart = callbacksElement.getAttribute(PRE_RESTART)
+      objectProperties.preRestart = restartCallbacksElement.getAttribute(PRE_RESTART)
-      objectProperties.postRestart = callbacksElement.getAttribute(POST_RESTART)
+      objectProperties.postRestart = restartCallbacksElement.getAttribute(POST_RESTART)
       if ((objectProperties.preRestart.isEmpty) && (objectProperties.preRestart.isEmpty)) {
         throw new IllegalActorStateException("At least one of pre or post must be defined.")
       }
     }
 
+    if (shutdownCallbackElement != null) {
+      objectProperties.shutdown = shutdownCallbackElement.getAttribute("method")
+    }
+
     if (dispatcherElement != null) {
       val dispatcherProperties = parseDispatcher(dispatcherElement)
       objectProperties.dispatcher = dispatcherProperties

akka-spring/src/main/scala/ActiveObjectProperties.scala

@@ -10,6 +10,7 @@ import AkkaSpringConfigurationTags._
 /**
  * Data container for active object configuration data.
  * @author michaelkober
+ * @author Martin Krasser
  */
 class ActiveObjectProperties {
   var target: String = ""
@@ -18,10 +19,11 @@ class ActiveObjectProperties {
   var transactional: Boolean = false
   var preRestart: String = ""
   var postRestart: String = ""
+  var shutdown: String = ""
   var host: String = ""
   var port: Int = _
   var lifecycle: String = ""
-  var scope:String = ""
+  var scope:String = VAL_SCOPE_SINGLETON
   var dispatcher: DispatcherProperties = _
   var propertyEntries = new PropertyEntries()
 
@@ -35,6 +37,7 @@ class ActiveObjectProperties {
     builder.addPropertyValue(PORT, port)
     builder.addPropertyValue(PRE_RESTART, preRestart)
     builder.addPropertyValue(POST_RESTART, postRestart)
+    builder.addPropertyValue(SHUTDOWN, shutdown)
     builder.addPropertyValue(TIMEOUT, timeout)
     builder.addPropertyValue(TARGET, target)
     builder.addPropertyValue(INTERFACE, interface)

akka-spring/src/main/scala/AkkaSpringConfigurationTags.scala

@@ -6,6 +6,7 @@ package se.scalablesolutions.akka.spring
 /**
  * XML configuration tags.
  * @author michaelkober
+ * @author Martin Krasser
  */
 object AkkaSpringConfigurationTags {
 
@@ -20,6 +21,7 @@ object AkkaSpringConfigurationTags {
 
   // active-object sub tags
   val RESTART_CALLBACKS_TAG = "restart-callbacks"
+  val SHUTDOWN_CALLBACK_TAG = "shutdown-callback"
   val REMOTE_TAG = "remote"
 
   // superivision sub tags
@@ -45,6 +47,7 @@ object AkkaSpringConfigurationTags {
   val PORT = "port"
   val PRE_RESTART = "pre"
   val POST_RESTART = "post"
+  val SHUTDOWN = "shutdown"
   val LIFECYCLE = "lifecycle"
   val SCOPE = "scope"
 

akka-spring/src/test/java/se/scalablesolutions/akka/spring/SampleBean.java

@@ -1,9 +1,22 @@
 package se.scalablesolutions.akka.spring;
 
+import se.scalablesolutions.akka.actor.annotation.shutdown;
+
 public class SampleBean {
 
+    public boolean down;
+
+    public SampleBean() {
+        down = false;
+    }
+
     public String foo(String s) {
         return "hello " + s;
     }
 
+    @shutdown
+    public void shutdown() {
+        down = true;
+    }
+
  }

akka-spring/src/test/resources/appContext.xml

@@ -7,6 +7,9 @@
        http://www.akkasource.org/schema/akka
        http://scalablesolutions.se/akka/akka-0.10.xsd">
 
+    <akka:active-object id="bean-singleton" target="se.scalablesolutions.akka.spring.SampleBean" timeout="1000"/>
+    <akka:active-object id="bean-prototype" target="se.scalablesolutions.akka.spring.SampleBean" timeout="1000" scope="prototype"/>
+    
     <akka:active-object id="bean"
                         target="org.springframework.core.io.ResourceEditor"
                         transactional="true"

akka-spring/src/test/scala/ActiveObjectBeanDefinitionParserTest.scala

@@ -54,7 +54,7 @@ class ActiveObjectBeanDefinitionParserTest extends Spec with ShouldMatchers {
                 </akka:active-object>
       val props = parser.parseActiveObject(dom(xml).getDocumentElement);
       assert(props != null)
-      assert(props.dispatcher.dispatcherType == "thread-based")
+      assert(props.dispatcher.dispatcherType === "thread-based")
     }
 
     it("should parse remote ActiveObjects configuration") {
@@ -64,8 +64,8 @@ class ActiveObjectBeanDefinitionParserTest extends Spec with ShouldMatchers {
                 </akka:active-object>
       val props = parser.parseActiveObject(dom(xml).getDocumentElement);
       assert(props != null)
-      assert(props.host == "com.some.host")
+      assert(props.host === "com.some.host")
-      assert(props.port == 9999)
+      assert(props.port === 9999)
     }
   }
 }

akka-spring/src/test/scala/ActiveObjectFactoryBeanTest.scala

@@ -70,5 +70,21 @@ class ActiveObjectFactoryBeanTest extends Spec with ShouldMatchers {
       val target:ResourceEditor = ctx.getBean("bean").asInstanceOf[ResourceEditor]
       assert(target.getSource === "someString")
     }
+
+    it("should stop the created active object when scope is singleton and the context is closed") {
+      var ctx = new ClassPathXmlApplicationContext("appContext.xml");
+      val target = ctx.getBean("bean-singleton").asInstanceOf[SampleBean]
+      assert(!target.down)
+      ctx.close
+      assert(target.down)
+    }
+
+    it("should not stop the created active object when scope is prototype and the context is closed") {
+      var ctx = new ClassPathXmlApplicationContext("appContext.xml");
+      val target = ctx.getBean("bean-prototype").asInstanceOf[SampleBean]
+      assert(!target.down)
+      ctx.close
+      assert(!target.down)
+    }
   }
 }

akka-spring/src/test/scala/SupervisionBeanDefinitionParserTest.scala

@@ -49,11 +49,21 @@ class SupervisionBeanDefinitionParserTest extends Spec with ShouldMatchers {
       parser.parseSupervisor(createSupervisorElement, builder);
       val supervised = builder.getBeanDefinition.getPropertyValues.getPropertyValue("supervised").getValue.asInstanceOf[List[ActiveObjectProperties]]
       assert(supervised != null)
-      expect(3) { supervised.length }
+      expect(4) { supervised.length }
       val iterator = supervised.iterator
-      expect("foo.bar.Foo") { iterator.next.target }
+      val prop1 = iterator.next
-      expect("foo.bar.Bar") { iterator.next.target }
+      val prop2 = iterator.next
-      expect("foo.bar.MyPojo") { iterator.next.target }
+      val prop3 = iterator.next
+      val prop4 = iterator.next
+      expect("foo.bar.Foo") { prop1.target }
+      expect("foo.bar.Bar") { prop2.target }
+      expect("foo.bar.MyPojo") { prop3.target }
+      expect("foo.bar.MyPojo") { prop4.target }
+      expect("preRestart") { prop3.preRestart }
+      expect("postRestart") { prop3.postRestart }
+      expect("shutdown") { prop4.shutdown }
+      expect("permanent") { prop1.lifecycle }
+      expect("temporary") { prop4.lifecycle }
     }
 
     it("should throw IllegalArgumentException on missing mandatory attributes") {
@@ -87,6 +97,9 @@ class SupervisionBeanDefinitionParserTest extends Spec with ShouldMatchers {
                           <akka:active-object target="foo.bar.MyPojo" lifecycle="temporary" timeout="1000">
                                   <akka:restart-callbacks pre="preRestart" post="postRestart"/>
                           </akka:active-object>
+                          <akka:active-object target="foo.bar.MyPojo" lifecycle="temporary" timeout="1000">
+                                  <akka:shutdown-callback method="shutdown"/>
+                          </akka:active-object>
                   </akka:active-objects>
     </akka:supervision>
     dom(xml).getDocumentElement