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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 __AbstractDs_H
#define __AbstractDs_H
#ifndef H5_NO_NAMESPACE
namespace H5 {
#endif
class ArrayType;
class CompType;
class EnumType;
class FloatType;
class IntType;
class StrType;
class VarLenType;
/*! \class AbstractDs
\brief AbstractDs is an abstract base class, inherited by Attribute
and DataSet.
It provides a collection of services that are common to both Attribute
and DataSet. AbstractDs inherits from H5Object.
*/
class H5_DLLCPP AbstractDs {
public:
// Gets a copy the datatype of that this abstract dataset uses.
// Note that this datatype is a generic one and can only be accessed
// via generic member functions, i.e., member functions belong
// to DataType. To get specific datatype, i.e. EnumType, FloatType,
// etc..., use the specific functions, that follow, instead.
DataType getDataType() const;
// Gets a copy of the specific datatype of this abstract dataset.
ArrayType getArrayType() const;
CompType getCompType() const;
EnumType getEnumType() const;
IntType getIntType() const;
FloatType getFloatType() const;
StrType getStrType() const;
VarLenType getVarLenType() const;
///\brief Gets the size in memory of this abstract dataset.
virtual size_t getInMemDataSize() const = 0;
///\brief Gets the dataspace of this abstract dataset - pure virtual.
virtual DataSpace getSpace() const = 0;
// Gets the class of the datatype that is used by this abstract
// dataset.
H5T_class_t getTypeClass() const;
///\brief Returns the amount of storage size required - pure virtual.
virtual hsize_t getStorageSize() const = 0;
///\brief Returns this class name.
virtual H5std_string fromClass() const = 0;
// Copy constructor
AbstractDs( const AbstractDs& original );
// Destructor
virtual ~AbstractDs();
protected:
// Default constructor
AbstractDs();
// Constructor that takes an attribute id or a dataset id.
AbstractDs( const hid_t ds_id );
private:
// This member function is implemented by DataSet and Attribute.
virtual hid_t p_get_type() const = 0;
};
#ifndef H5_NO_NAMESPACE
}
#endif
#endif // __AbstractDs_H
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