Add some handy "short-cut" functions

MongoDB/include/Poco/MongoDB/ResponseMessage.h

@@ -60,14 +60,6 @@ public:
 		/// Destructor
 
 
-	void read(std::istream& istr);
-		/// Reads the response from the stream
-
-
-	Document::Vector& documents();
-		/// Returns the retrieved documents
-
-
 	Int64 cursorID() const;
 		/// Returns the cursor id
 
@@ -75,6 +67,27 @@ public:
 	void clear();
 		/// Clears the response
 
+
+	size_t count() const;
+		/// Returns the number of documents in the response
+
+
+	Document::Vector& documents();
+		/// Returns the retrieved documents
+
+
+	bool empty() const;
+		/// Returns true when the response doesn't contain any documents
+
+
+	bool hasDocuments() const;
+		/// Returns true when there is at least one document
+
+
+	void read(std::istream& istr);
+		/// Reads the response from the stream
+
+
 private:
 	
 	Int32 _responseFlags;
@@ -93,9 +106,15 @@ private:
 };
 
 
-inline Document::Vector& ResponseMessage::documents()
+inline size_t ResponseMessage::count() const
 {
-	return _documents;
+	return _documents.size();
+}
+
+
+inline bool ResponseMessage::empty() const
+{
+	return _documents.size() == 0;
 }
 
 
@@ -105,6 +124,17 @@ inline Int64 ResponseMessage::cursorID() const
 }
 
 
+inline Document::Vector& ResponseMessage::documents()
+{
+	return _documents;
+}
+
+
+inline bool ResponseMessage::hasDocuments() const
+{
+	return _documents.size() > 0;
+}
+
 }} // Namespace Poco::MongoDB
 
 #endif //_MongoDB_ResponseMessage_included