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diff --git a/eclipse/plugins/org.argeo.eclipse.ui/src/main/java/org/argeo/eclipse/spring/SpringExtensionFactory.java b/eclipse/plugins/org.argeo.eclipse.ui/src/main/java/org/argeo/eclipse/spring/SpringExtensionFactory.java
new file mode 100644
index 000000000..f92b423e9
--- /dev/null
+++ b/eclipse/plugins/org.argeo.eclipse.ui/src/main/java/org/argeo/eclipse/spring/SpringExtensionFactory.java
@@ -0,0 +1,105 @@
+package org.argeo.eclipse.spring;
+
+import org.argeo.eclipse.ui.ArgeoUiPlugin;
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.IConfigurationElement;
+import org.eclipse.core.runtime.IExecutableExtension;
+import org.eclipse.core.runtime.IExecutableExtensionFactory;
+import org.eclipse.core.runtime.IExtension;
+import org.eclipse.core.runtime.Platform;
+import org.osgi.framework.Bundle;
+import org.osgi.framework.BundleException;
+import org.springframework.context.ApplicationContext;
+
+/**
+ * The Spring Extension Factory builds a bridge between the Eclipse Extension
+ * Registry and the Spring Framework (especially Spring Dynamic Modules).
+ * 
+ * It allows you to define your extension as a spring bean within the spring
+ * application context of your bundle. If you would like to use this bean as an
+ * instance of an extension (an Eclipse RCP view, for example) you define the
+ * extension with this spring extension factory as the class to be created.
+ * 
+ * To let the spring extension factory pick the right bean from your application
+ * context you need to set the bean id to the same value as the id of the view
+ * within the view definition, for example. This is important if your extension
+ * definition contains more than one element, where each element has its own id.
+ * 
+ * If the extension definition elements themselves have no id attribute the
+ * spring extension factory uses the id of the extension itself to identify the
+ * bean.
+ * 
+ * @author Martin Lippert
+ */
+public class SpringExtensionFactory implements IExecutableExtensionFactory,
+		IExecutableExtension {
+
+	private Object bean;
+
+	public Object create() throws CoreException {
+		return bean;
+	}
+
+	public void setInitializationData(IConfigurationElement config,
+			String propertyName, Object data) throws CoreException {
+		String beanName = getBeanName(data, config);
+		ApplicationContext appContext = getApplicationContext(config);
+
+		if (beanName != null && appContext != null) {
+			this.bean = appContext.getBean(beanName);
+			if (this.bean instanceof IExecutableExtension) {
+				((IExecutableExtension) this.bean).setInitializationData(
+						config, propertyName, data);
+			}
+		}
+	}
+
+	private String getBeanName(Object data, IConfigurationElement config) {
+		
+		// try the specific bean id the extension defines
+		if (data != null && data.toString().length() > 0) {
+			return data.toString();
+		}
+
+		// try the id of the config element
+		if (config.getAttribute("id") != null) {
+			return config.getAttribute("id");
+		}
+
+		// try the id of the extension element itself
+		if (config.getParent() != null
+				&& config.getParent() instanceof IExtension) {
+			IExtension extensionDefinition = (IExtension) config.getParent();
+			return extensionDefinition.getSimpleIdentifier();
+		}
+
+		return null;
+	}
+
+	private ApplicationContext getApplicationContext(
+			IConfigurationElement config) {
+		String contributorName = config.getContributor().getName();
+		Bundle contributorBundle = Platform.getBundle(contributorName);
+
+		if (contributorBundle.getState() != Bundle.ACTIVE && contributorBundle.getState() != Bundle.STARTING) {
+			try {
+				System.out.println("starting bundle: " + contributorBundle.getSymbolicName());
+				contributorBundle.start();
+			} catch (BundleException e) {
+				e.printStackTrace();
+			}
+		}
+
+		final ApplicationContextTracker applicationContextTracker = new ApplicationContextTracker(
+				contributorBundle, ArgeoUiPlugin.getDefault().getBundleContext());
+		ApplicationContext applicationContext = null;
+		try {
+			applicationContext = applicationContextTracker
+					.getApplicationContext();
+		} finally {
+			applicationContextTracker.close();
+		}
+		return applicationContext;
+	}
+
+}