4 files changed, 42 insertions, 0 deletions
diff --git a/src/Common/StorageBackend.h b/src/Common/StorageBackend.h
index 027109e..1d53570 100644
--- a/src/Common/StorageBackend.h
+++ b/src/Common/StorageBackend.h
@@ -24,6 +24,7 @@
 #include <Core/Exception.h>
 
 #include <boost/shared_ptr.hpp>
+#include <set>
 
 namespace Mad {
 namespace Common {
@@ -34,6 +35,9 @@ class StorageBackend {
   protected:
     friend class StorageManager;
 
+    virtual std::set<std::string> listTypes() throw (Core::Exception) = 0;
+    virtual std::set<std::string> list(const std::string &type) throw (Core::Exception) = 0;
+
     virtual void store(const std::string &type, const std::string &name, const XmlData *data) throw (Core::Exception) = 0;
     virtual boost::shared_ptr<XmlData> load(const std::string &type, const std::string &name) throw (Core::Exception) = 0;
 
diff --git a/src/Common/StorageManager.cpp b/src/Common/StorageManager.cpp
index a1610fe..ac83476 100644
--- a/src/Common/StorageManager.cpp
+++ b/src/Common/StorageManager.cpp
@@ -36,6 +36,22 @@ void StorageManager::unsetBackend(boost::shared_ptr<StorageBackend> oldBackend)
     backend.reset();
 }
 
+std::set<std::string> StorageManager::listTypes() throw (Core::Exception) {
+  boost::shared_lock<boost::shared_mutex> lock(mutex);
+  if(!backend)
+    throw Core::Exception(Core::Exception::NOT_IMPLEMENTED);
+
+  return backend->listTypes();
+}
+
+std::set<std::string> StorageManager::list(const std::string &type) throw (Core::Exception) {
+  boost::shared_lock<boost::shared_mutex> lock(mutex);
+  if(!backend)
+    throw Core::Exception(Core::Exception::NOT_IMPLEMENTED);
+
+  return backend->list(type);
+}
+
 void StorageManager::store(const std::string &type, const std::string &name, const XmlData *data) throw (Core::Exception) {
   boost::shared_lock<boost::shared_mutex> lock(mutex);
   if(!backend)
diff --git a/src/Common/StorageManager.h b/src/Common/StorageManager.h
index c81c707..98533fb 100644
--- a/src/Common/StorageManager.h
+++ b/src/Common/StorageManager.h
@@ -51,6 +51,9 @@ class MAD_COMMON_EXPORT StorageManager {
     void setBackend(boost::shared_ptr<StorageBackend> newBackend);
     void unsetBackend(boost::shared_ptr<StorageBackend> oldBackend);
 
+    std::set<std::string> listTypes() throw (Core::Exception);
+    std::set<std::string> list(const std::string &type) throw (Core::Exception);
+
     void store(const std::string &type, const std::string &name, const XmlData *data) throw (Core::Exception);
     boost::shared_ptr<XmlData> load(const std::string &type, const std::string &name) throw (Core::Exception);
 };
diff --git a/src/Common/XmlData.h b/src/Common/XmlData.h
index 51e5327..b7e8ec1 100644
--- a/src/Common/XmlData.h
+++ b/src/Common/XmlData.h
@@ -26,6 +26,7 @@
 #include <Core/Exception.h>
 
 #include <map>
+#include <set>
 #include <string>
 #include <sstream>
 #include <vector>
@@ -283,6 +284,24 @@ class MAD_COMMON_EXPORT XmlData {
 
           return;
         }
+
+        std::set<std::string> getChildren() const {
+          std::set<std::string> childNames;
+
+          for(std::map<std::string, Element*>::const_iterator it = elements.begin(); it != elements.end(); ++it)
+            childNames.insert(it->first);
+
+          return childNames;
+        }
+
+        std::set<std::string> getLists() const {
+          std::set<std::string> listNames;
+
+          for(std::map<std::string, List*>::const_iterator it = lists.begin(); it != lists.end(); ++it)
+            listNames.insert(it->first);
+
+          return listNames;
+        }
     };
 
     class MAD_COMMON_EXPORT List : private boost::noncopyable {