Add Mongo Buffer Interface method to Mongo Component Factory

aossl/mongo/include/factory_mongo.h

@@ -28,6 +28,8 @@ THE SOFTWARE.
 #include <string>
 #include "mongo_interface.h"
 #include "mongo_admin.h"
+#include "mongo_buffer_interface.h"
+#include "mongo_buffer.h"
 
 //! The Mongo Service Component Factory
 
@@ -43,6 +45,9 @@ class MongoComponentFactory {
   //! Delete a Service Component Factory
   ~MongoComponentFactory() {}
 
+  //! Get a Mongo Buffer, representing a BSON Document
+  inline AOSSL::MongoBufferInterface* get_mongo_buffer() {return new AOSSL::MongoBuffer;}
+
   //! Get a Mongo Interface instance
   inline MongoInterface* get_mongo_interface(const char * url, \
     const char * db, const char * collection_name) {

aossl/mongo/include/mongo_buffer.h

@@ -47,7 +47,7 @@ class MongoBuffer: public Buffer, public MongoBufferInterface {
   //! Build a new Mongo Buffer
   MongoBuffer() {bson_t *b = new bson_t; bson_init (b); children.push_back(b);}
   //! Destroy the Mongo Buffer
-  ~MongoBuffer() {bson_destroy(children[0]); delete children[0]; for (int i = 1; i < children.size(); i++) {delete children[i];}}
+  ~MongoBuffer() {bson_destroy(children[0]); delete children[0]; for (unsigned int i = 1; i < children.size(); i++) {delete children[i];}}
   //! Is a successful response
   bool successful() {return Buffer::success;}
   //! Error message