From b8b4d357636f05064005742736bc88f382c2d609 Mon Sep 17 00:00:00 2001
From: Felix Geyer <debfx@fobos.de>
Date: Fri, 12 Oct 2012 12:10:13 +0200
Subject: [PATCH] Add CompositeKey::isEmpty().

---
 src/keys/CompositeKey.cpp | 5 +++++
 src/keys/CompositeKey.h   | 1 +
 2 files changed, 6 insertions(+)

diff --git a/src/keys/CompositeKey.cpp b/src/keys/CompositeKey.cpp
index d3c807bf3..905a6dbe8 100644
--- a/src/keys/CompositeKey.cpp
+++ b/src/keys/CompositeKey.cpp
@@ -44,6 +44,11 @@ void CompositeKey::clear()
     m_keys.clear();
 }
 
+bool CompositeKey::isEmpty() const
+{
+    return m_keys.isEmpty();
+}
+
 CompositeKey* CompositeKey::clone() const
 {
     return new CompositeKey(*this);
diff --git a/src/keys/CompositeKey.h b/src/keys/CompositeKey.h
index c95dcfd84..1d3233cca 100644
--- a/src/keys/CompositeKey.h
+++ b/src/keys/CompositeKey.h
@@ -29,6 +29,7 @@ public:
     CompositeKey(const CompositeKey& key);
     ~CompositeKey();
     void clear();
+    bool isEmpty() const;
     CompositeKey* clone() const;
     CompositeKey& operator=(const CompositeKey& key);