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// C++ informative line for the emacs editor: -*- C++ -*-
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* 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://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have *
* access to either file, you may request a copy from help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
#ifndef __H5Object_H
#define __H5Object_H
//#include "H5Location.h"
//#include "H5Classes.h" // constains forward class declarations
// H5Object is a baseclass. It has these subclasses:
// Group, DataSet, and DataType.
// DataType, in turn, has several specific datatypes as subclasses.
// Modification:
// Sept 18, 2012: Added class H5Location in between IdComponent and
// H5Object. An H5File now inherits from H5Location. All HDF5
// wrappers in H5Object are moved up to H5Location. H5Object
// is left mostly empty for future wrappers that are only for
// group, dataset, and named datatype. Note that the reason for
// adding H5Location instead of simply moving H5File to be under
// H5Object is H5File is not an HDF5 object, and renaming H5Object
// to H5Location will risk breaking user applications.
// -BMR
// Apr 2, 2014: Added wrapper getObjName for H5Iget_name
#ifndef H5_NO_NAMESPACE
namespace H5 {
#endif
class H5_DLLCPP H5Object;
// Define the operator function pointer for H5Aiterate().
typedef void (*attr_operator_t)( H5Object& loc/*in*/,
const H5std_string attr_name/*in*/,
void *operator_data/*in,out*/);
// User data for attribute iteration
class UserData4Aiterate {
public:
attr_operator_t op;
void* opData;
H5Object* location;
};
/*! \class H5Object
\brief Class H5Object is a bridge between H5Location and DataSet, DataType,
and Group.
All the wrappers in H5Object were moved to H5Location.
*/
class H5_DLLCPP H5Object : public H5Location {
public:
// Rearranging classes (HDFFV-9920) moved H5A wrappers back into H5Object.
// That way, C functions that takes attribute id can be in
// H5Location and those that cannot take attribute id can be in H5Object.
// Creates an attribute for the specified object
// PropList is currently not used, so always be default.
Attribute createAttribute( const char* name, const DataType& type, const DataSpace& space, const PropList& create_plist = PropList::DEFAULT ) const;
Attribute createAttribute( const H5std_string& name, const DataType& type, const DataSpace& space, const PropList& create_plist = PropList::DEFAULT ) const;
// Given its name, opens the attribute that belongs to an object at
// this location.
Attribute openAttribute( const char* name ) const;
Attribute openAttribute( const H5std_string& name ) const;
// Given its index, opens the attribute that belongs to an object at
// this location.
Attribute openAttribute( const unsigned int idx ) const;
// Iterate user's function over the attributes of this object.
int iterateAttrs(attr_operator_t user_op, unsigned* idx = NULL, void* op_data = NULL);
// Determines the number of attributes belong to this object.
int getNumAttrs() const;
// Checks whether the named attribute exists for this object.
bool attrExists(const char* name) const;
bool attrExists(const H5std_string& name) const;
// Renames the named attribute to a new name.
void renameAttr(const char* oldname, const char* newname) const;
void renameAttr(const H5std_string& oldname, const H5std_string& newname) const;
// Removes the named attribute from this object.
void removeAttr(const char* name) const;
void removeAttr(const H5std_string& name) const;
// Returns an identifier.
virtual hid_t getId() const = 0;
#ifndef DOXYGEN_SHOULD_SKIP_THIS
// Gets the name of this HDF5 object, i.e., Group, DataSet, or
// DataType. These should have const but are retiring anyway.
ssize_t getObjName(char *obj_name, size_t buf_size = 0) const;
ssize_t getObjName(H5std_string& obj_name, size_t len = 0) const;
H5std_string getObjName() const;
protected:
// Default constructor
H5Object();
// *** Deprecation warning ***
// The following two constructors are no longer appropriate after the
// data member "id" had been moved to the sub-classes.
// The copy constructor is a noop and is removed in 1.8.15 and the
// other will be removed from 1.10 release, and then from 1.8 if its
// removal does not raise any problems in two 1.10 releases.
// Creates a copy of an existing object giving the object id
H5Object( const hid_t object_id );
// Copy constructor: makes copy of an H5Object object.
// H5Object(const H5Object& original);
// Sets the identifier of this object to a new value. - this one
// doesn't increment reference count
virtual void p_setId(const hid_t new_id) = 0;
// Noop destructor.
virtual ~H5Object();
#endif // DOXYGEN_SHOULD_SKIP_THIS
}; /* end class H5Object */
#ifndef H5_NO_NAMESPACE
}
#endif
#endif // __H5Object_H
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