diff --git a/hawkbit-repository/hawkbit-repository-jpa/src/main/java/org/eclipse/hawkbit/repository/jpa/model/EntityInterceptorListener.java b/hawkbit-repository/hawkbit-repository-jpa/src/main/java/org/eclipse/hawkbit/repository/jpa/model/EntityInterceptorListener.java
index 1e9c39237..c3a4e6552 100644
--- a/hawkbit-repository/hawkbit-repository-jpa/src/main/java/org/eclipse/hawkbit/repository/jpa/model/EntityInterceptorListener.java
+++ b/hawkbit-repository/hawkbit-repository-jpa/src/main/java/org/eclipse/hawkbit/repository/jpa/model/EntityInterceptorListener.java
@@ -27,43 +27,84 @@ import org.eclipse.hawkbit.repository.model.EntityInterceptor;
  */
 public class EntityInterceptorListener {
 
+    /**
+     * Callback for lifecyle event <i>pre persist</i>.
+     *
+     * @param entity
+     *            the JPA entity which this listener is associated with
+     */
     @PrePersist
-    protected void prePersist(final Object entity) {
+    public void prePersist(final Object entity) {
         notifyAll(interceptor -> interceptor.prePersist(entity));
     }
 
+    /**
+     * Callback for lifecyle event <i>post persist</i>.
+     *
+     * @param entity
+     *            the JPA entity which this listener is associated with
+     */
     @PostPersist
-    protected void postPersist(final Object entity) {
+    public void postPersist(final Object entity) {
         notifyAll(interceptor -> interceptor.postPersist(entity));
     }
 
+    /**
+     * Callback for lifecyle event <i>post remove</i>.
+     *
+     * @param entity
+     *            the JPA entity which this listener is associated with
+     */
     @PostRemove
-    protected void postRemove(final Object entity) {
+    public void postRemove(final Object entity) {
         notifyAll(interceptor -> interceptor.postRemove(entity));
     }
 
+    /**
+     * Callback for lifecyle event <i>pre remove</i>.
+     *
+     * @param entity
+     *            the JPA entity which this listener is associated with
+     */
     @PreRemove
-    protected void preRemove(final Object entity) {
+    public void preRemove(final Object entity) {
         notifyAll(interceptor -> interceptor.preRemove(entity));
     }
 
+    /**
+     * Callback for lifecyle event <i>post load</i>.
+     *
+     * @param entity
+     *            the JPA entity which this listener is associated with
+     */
     @PostLoad
-    protected void postLoad(final Object entity) {
+    public void postLoad(final Object entity) {
         notifyAll(interceptor -> interceptor.postLoad(entity));
     }
 
+    /**
+     * Callback for lifecyle event <i>pre update</i>.
+     *
+     * @param entity
+     *            the JPA entity which this listener is associated with
+     */
     @PreUpdate
-    protected void preUpdate(final Object entity) {
+    public void preUpdate(final Object entity) {
         notifyAll(interceptor -> interceptor.preUpdate(entity));
     }
 
+    /**
+     * Callback for lifecyle event <i>post update</i>.
+     *
+     * @param entity
+     *            the JPA entity which this listener is associated with
+     */
     @PostUpdate
-    protected void postUpdate(final Object entity) {
+    public void postUpdate(final Object entity) {
         notifyAll(interceptor -> interceptor.postUpdate(entity));
     }
 
     private void notifyAll(final Consumer<? super EntityInterceptor> action) {
         EntityInterceptorHolder.getInstance().getEntityInterceptors().forEach(action);
     }
-
 }