[svn-r15922] Description:

	Bring revisions 15289:15457 from trunk into metadata journaling
branch.

Tested on:
        FreeBSD/32 6.2 (duty) in debug mode
        FreeBSD/64 6.2 (liberty) w/C++ & FORTRAN, in debug mode
        Linux/32 2.6 (kagiso) w/PGI compilers, w/C++ & FORTRAN, w/threadsafe,
                                in debug mode
        Linux/64-amd64 2.6 (smirom) w/default API=1.6.x, w/C++ & FORTRAN,
                                in production mode
        Linux/64-ia64 2.6 (cobalt) w/Intel compilers, w/C++ & FORTRAN,
                                in production mode
        Solaris/32 2.10 (linew) w/deprecated symbols disabled, w/C++ & FORTRAN,
                                w/szip filter, in production mode
        Mac OS X/32 10.5.2 (amazon) in debug mode
        Linux/64-ia64 2.4 (tg-login3) w/parallel, w/FORTRAN, in production mode

1 files changed, 12 insertions, 10 deletions

diff --git a/c++/src/H5DataSet.h b/c++/src/H5DataSet.h
index 7323f52..f5d13d0 100644
--- a/c++/src/H5DataSet.h
+++ b/c++/src/H5DataSet.h
@@ -23,7 +23,7 @@
 namespace H5 {
 #endif
 
-class H5_DLLCPP DataSet : public AbstractDs {
+class H5_DLLCPP DataSet : public H5Object, public AbstractDs {
    public:
 	// Close this dataset.
 	virtual void close();
@@ -81,19 +81,12 @@ class H5_DLLCPP DataSet : public AbstractDs {
 	// Retrieves a dataspace with the region pointed to selected.
 	DataSpace getRegion(void *ref, H5R_type_t ref_type = H5R_DATASET_REGION) const;
 
-	// Creates a reference to a named Hdf5 object or to a dataset region
-	// in this object.
-	void* Reference(const char* name, DataSpace& dataspace, H5R_type_t ref_type = H5R_DATASET_REGION) const;
-
-	// Creates a reference to a named Hdf5 object in this object.
-	void* Reference(const char* name) const; // will be obsolete
-	void* Reference(const H5std_string& name) const; // will be obsolete
-
 	// Returns this class name
 	virtual H5std_string fromClass () const { return("DataSet"); }
 
 	// Creates a dataset by way of dereference.
-	DataSet(IdComponent& obj, void* ref);
+	DataSet(H5Object& obj, void* ref);
+	DataSet(H5File& file, void* ref);
 
 	// Default constructor.
 	DataSet();
@@ -104,15 +97,24 @@ class H5_DLLCPP DataSet : public AbstractDs {
 	// Creates a copy of an existing DataSet using its id.
 	DataSet(const hid_t existing_id);
 
+        // Gets the dataset id.
+        virtual hid_t getId() const;
+
 	// Destructor: properly terminates access to this dataset.
 	virtual ~DataSet();
 
    private:
+	hid_t id;       // HDF5 dataset id
+
         // This function contains the common code that is used by
         // getTypeClass and various API functions getXxxType
         // defined in AbstractDs for generic datatype and specific
         // sub-types
 	virtual hid_t p_get_type() const;
+
+   protected:
+        // Sets the dataset id.
+        virtual void p_setId(const hid_t new_id);
 };
 #ifndef H5_NO_NAMESPACE
 }