1 files changed, 5 insertions, 5 deletions

diff --git a/src/mongo/db/pipeline/builder.h b/src/mongo/db/pipeline/builder.h
index e6a68a72a32..5e4f5e48e38 100755
--- a/src/mongo/db/pipeline/builder.h
+++ b/src/mongo/db/pipeline/builder.h
@@ -44,7 +44,7 @@ namespace mongo {
         virtual void append(int i) = 0;
         virtual void append(long long ll) = 0;
         virtual void append(double d) = 0;
-        virtual void append(const std::string& s) = 0;
+        virtual void append(StringData s) = 0;
         virtual void append(const OID &o) = 0;
         virtual void append(const Date_t &d) = 0;
         virtual void append(const OpTime& ot) = 0;
@@ -62,18 +62,18 @@ namespace mongo {
         virtual void append(int i);
         virtual void append(long long ll);
         virtual void append(double d);
-        virtual void append(const std::string& s);
+        virtual void append(StringData s);
         virtual void append(const OID &o);
         virtual void append(const Date_t &d);
         virtual void append(const OpTime& ot);
         virtual void append(BSONObjBuilder *pDone);
         virtual void append(BSONArrayBuilder *pDone);
 
-        BuilderObj(BSONObjBuilder *pBuilder, const std::string& fieldName);
+        BuilderObj(BSONObjBuilder *pBuilder, StringData fieldName);
 
     private:
         BSONObjBuilder *pBuilder;
-        string fieldName;
+        StringData fieldName;
     };
 
     class BuilderArray :
@@ -86,7 +86,7 @@ namespace mongo {
         virtual void append(int i);
         virtual void append(long long ll);
         virtual void append(double d);
-        virtual void append(const std::string& s);
+        virtual void append(StringData s);
         virtual void append(const OID &o);
         virtual void append(const Date_t &d);
         virtual void append(const OpTime& ot);