HDF5 C++ API Reference Manual

 

 

 

H5Attribute.h

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#ifndef _H5Attribute_H
#define _H5Attribute_H

#ifndef H5_NO_NAMESPACE
namespace H5 {
#endif

class H5_DLLCPP Attribute : public AbstractDs {
   public:
        // Gets the name of this attribute.
        ssize_t getName( size_t buf_size, string& attr_name ) const;
        string getName( size_t buf_size ) const; // returns name, not its length
        string getName() const; // returns name, no argument

        // Gets a copy of the dataspace for this attribute.
        virtual DataSpace getSpace() const;

        // Returns the amount of storage size required for this attribute.
        virtual hsize_t getStorageSize() const;

        // Reads data from this attribute.
        void read( const DataType& mem_type, void *buf ) const;
        void read( const DataType& mem_type, string& strg ) const;

        // Writes data to this attribute.
        void write(const DataType& mem_type, const void *buf ) const;
        void write(const DataType& mem_type, const string& strg ) const;

        // Creates a copy of an existing attribute using the attribute id
        Attribute( const hid_t attr_id );

        // Copy constructor: makes a copy of an existing Attribute object.
        Attribute( const Attribute& original );

        // Default constructor
        Attribute();

        // Close this attribute.
        virtual void close();

        // Destructor: properly terminates access to this attribute.
        virtual ~Attribute();

   private:
        // 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;

        // do not inherit 'iterateAttrs' from H5Object
        int iterateAttrs() { return 0; }

        // do not inherit 'rename' from H5Object
        void rename() {}
};
#ifndef H5_NO_NAMESPACE
}
#endif
#endif

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