From: Mukund Sivaraman <muks@isc.org>
Date: Wed, 3 Oct 2012 05:19:01 +0000 (+0530)
Subject: [2206] Make constructors protected
X-Git-Tag: trac2351_base~21
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=94656c03d42d0339c79d10be8ccedaea6da55028;p=thirdparty%2Fkea.git

[2206] Make constructors protected
---

diff --git a/src/lib/datasrc/memory/zone_table_segment.h b/src/lib/datasrc/memory/zone_table_segment.h
index 85050196f5..ca7b9d2f22 100644
--- a/src/lib/datasrc/memory/zone_table_segment.h
+++ b/src/lib/datasrc/memory/zone_table_segment.h
@@ -58,6 +58,14 @@ private:
 /// management implementation. Derived classes would implement the
 /// interface for specific memory-implementation behavior.
 class ZoneTableSegment {
+protected:
+    /// \brief Protected constructor
+    ///
+    /// An instance implementing this interface is expected to be
+    /// created by the factory method (\c create()), so this constructor
+    /// is protected.
+    ZoneTableSegment()
+    {}
 public:
     /// \brief Destructor
     virtual ~ZoneTableSegment() {}
diff --git a/src/lib/datasrc/memory/zone_table_segment_local.h b/src/lib/datasrc/memory/zone_table_segment_local.h
index 6d823a7d8e..45a5b5fd16 100644
--- a/src/lib/datasrc/memory/zone_table_segment_local.h
+++ b/src/lib/datasrc/memory/zone_table_segment_local.h
@@ -28,6 +28,17 @@ namespace memory {
 /// MemorySegmentLocal based ZoneTableSegment. Please see the
 /// ZoneTableSegment class documentation for usage.
 class ZoneTableSegmentLocal : public ZoneTableSegment {
+    // This is so that ZoneTableSegmentLocal can be instantiated from
+    // ZoneTableSegment::create().
+    friend class ZoneTableSegment;
+protected:
+    /// \brief Protected constructor
+    ///
+    /// Instances are expected to be created by the factory method
+    /// (\c ZoneTableSegment::create()), so this constructor is
+    /// protected.
+    ZoneTableSegmentLocal()
+    {}
 public:
     /// \brief Destructor
     virtual ~ZoneTableSegmentLocal() {}