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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by the Board of Trustees of the University of Illinois. *
* All rights reserved. *
* *
* This file is part of HDF5. The full HDF5 copyright notice, including *
* terms governing use, modification, and redistribution, is contained in *
* the files COPYING and Copyright.html. COPYING can be found at the root *
* of the source code distribution tree; Copyright.html can be found at the *
* root level of an installed copy of the electronic HDF5 document set and *
* is linked from the top-level documents page. It can also be found at *
* http://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html. If you do not have *
* access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
#ifdef OLD_HEADER_FILENAME
#include <iostream.h>
#else
#include <iostream>
#endif
#include <string>
#ifndef H5_NO_NAMESPACE
#ifndef H5_NO_STD
using std::string;
#endif // H5_NO_STD
#endif
#include "H5Include.h"
#include "H5Exception.h"
#include "H5IdComponent.h"
#include "H5PropList.h"
#include "H5Object.h"
#include "H5AbstractDs.h"
#include "H5FaccProp.h"
#include "H5FcreatProp.h"
#include "H5DcreatProp.h"
#include "H5DxferProp.h"
#include "H5DataSpace.h"
#include "H5DataSet.h"
#include "H5CommonFG.h"
#include "H5Group.h"
#include "H5File.h"
#include "H5Alltypes.h"
#ifndef H5_NO_NAMESPACE
namespace H5 {
#ifndef H5_NO_STD
using std::cerr;
using std::endl;
#endif // H5_NO_STD
#endif
//--------------------------------------------------------------------------
// Function: Group default constructor
///\brief Default constructor: creates a stub Group.
// Programmer Binh-Minh Ribler - 2000
//--------------------------------------------------------------------------
Group::Group() : H5Object() {}
//--------------------------------------------------------------------------
// Function: Group copy constructor
///\brief Copy constructor: makes a copy of the original Group object.
///\param original - IN: Original group to copy
// Programmer Binh-Minh Ribler - 2000
//--------------------------------------------------------------------------
Group::Group( const Group& original ) : H5Object( original ) {}
//--------------------------------------------------------------------------
// Function: Group::getLocId
///\brief Returns the id of this group.
///\return Id of this group
// Programmer Binh-Minh Ribler - 2000
//--------------------------------------------------------------------------
hid_t Group::getLocId() const
{
return( getId() );
}
//--------------------------------------------------------------------------
// Function: Group overloaded constructor
///\brief Creates a Group object using the id of an existing group.
///\param group_id - IN: Id of an existing group
// Programmer Binh-Minh Ribler - 2000
//--------------------------------------------------------------------------
Group::Group( const hid_t group_id ) : H5Object( group_id ) {}
//--------------------------------------------------------------------------
// Function: Group::Reference
///\brief Creates a reference to an HDF5 object or a dataset region.
///\param name - IN: Name of the object to be referenced
///\param dataspace - IN: Dataspace with selection
///\param ref_type - IN: Type of reference; default to \c H5R_DATASET_REGION
///\return A reference
///\exception H5::GroupIException
// Programmer Binh-Minh Ribler - May, 2004
//--------------------------------------------------------------------------
void* Group::Reference(const char* name, DataSpace& dataspace, H5R_type_t ref_type) const
{
try {
return(p_reference(name, dataspace.getId(), ref_type));
}
catch (IdComponentException E) {
throw GroupIException("Group::Reference", E.getDetailMsg());
}
}
//--------------------------------------------------------------------------
// Function: Group::Reference
///\brief This is an overloaded function, provided for your convenience.
/// It differs from the above function in that it only creates
/// a reference to an HDF5 object, not to a dataset region.
///\param name - IN: Name of the object to be referenced
///\return A reference
///\exception H5::GroupIException
///\par Description
// This function passes H5R_OBJECT and -1 to the protected
// function for it to pass to the C API H5Rcreate
// to create a reference to the named object.
// Programmer Binh-Minh Ribler - May, 2004
//--------------------------------------------------------------------------
void* Group::Reference(const char* name) const
{
try {
return(p_reference(name, -1, H5R_OBJECT));
}
catch (IdComponentException E) {
throw GroupIException("Group::Reference", E.getDetailMsg());
}
}
//--------------------------------------------------------------------------
// Function: Group::Reference
///\brief This is an overloaded function, provided for your convenience.
/// It differs from the above function in that it takes an
/// \c std::string for the object's name.
///\param name - IN: Name of the object to be referenced
// Programmer Binh-Minh Ribler - May, 2004
//--------------------------------------------------------------------------
void* Group::Reference(const string& name) const
{
return(Reference(name.c_str()));
}
//--------------------------------------------------------------------------
// Function: Group::getObjType
///\brief Retrieves the type of object that an object reference points to.
///\param ref - IN: Reference to query
///\param ref_type - IN: Type of reference to query
///\return An object type, which can be one of the following:
// H5G_LINK Object is a symbolic link.
// H5G_GROUP Object is a group.
// H5G_DATASET Object is a dataset.
// H5G_TYPE Object is a named datatype
///\exception H5::GroupIException
// Programmer Binh-Minh Ribler - May, 2004
//--------------------------------------------------------------------------
H5G_obj_t Group::getObjType(void *ref, H5R_type_t ref_type) const
{
try {
return(p_get_obj_type(ref, ref_type));
}
catch (IdComponentException E) {
throw GroupIException("Group::getObjType", E.getDetailMsg());
}
}
//--------------------------------------------------------------------------
// Function: Group::getRegion
///\brief Retrieves a dataspace with the region pointed to selected.
///\param ref - IN: Reference to get region of
///\param ref_type - IN: Type of reference to get region of - default
///\return DataSpace instance
///\exception H5::GroupIException
// Programmer Binh-Minh Ribler - May, 2004
//--------------------------------------------------------------------------
DataSpace Group::getRegion(void *ref, H5R_type_t ref_type) const
{
try {
DataSpace dataspace(p_get_region(ref, ref_type));
return(dataspace);
}
catch (IdComponentException E) {
throw GroupIException("Group::getRegion", E.getDetailMsg());
}
}
//--------------------------------------------------------------------------
// Function: Group::close
///\brief Closes this group.
///
///\exception H5::GroupIException
// Programmer Binh-Minh Ribler - Mar 9, 2005
//--------------------------------------------------------------------------
void Group::close()
{
herr_t ret_value = H5Gclose( id );
if( ret_value < 0 )
{
throw GroupIException("Group::close", "H5Gclose failed");
}
// reset the id because the group that it represents is now closed
id = 0;
}
//--------------------------------------------------------------------------
// Function: Group::throwException
///\brief Throws H5::GroupIException.
///\param func_name - Name of the function where failure occurs
///\param msg - Message describing the failure
///\exception H5::GroupIException
// Description
// This function is used in CommonFG implementation so that
// proper exception can be thrown for file or group. The
// argument func_name is a member of CommonFG and "Group::"
// will be inserted to indicate the function called is an
// implementation of Group.
// Programmer Binh-Minh Ribler - 2000
//--------------------------------------------------------------------------
void Group::throwException(const string func_name, const string msg) const
{
string full_name = func_name;
full_name.insert(0, "Group::");
throw GroupIException(full_name, msg);
}
//--------------------------------------------------------------------------
// Function: Group destructor
///\brief Properly terminates access to this group.
// Programmer Binh-Minh Ribler - 2000
// Modification
// Replaced resetIdComponent with decRefCount to use C library
// ID reference counting mechanism - June 1, 2004
//--------------------------------------------------------------------------
Group::~Group()
{
// The group id will be closed properly
try {
decRefCount();
}
catch (Exception close_error) {
cerr << "Group::~Group - " << close_error.getDetailMsg() << endl;
}
}
#ifndef H5_NO_NAMESPACE
} // end namespace
#endif
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