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mi::neuraylib::IUser_class Class Referenceabstract

Abstract interface for user-defined classes. More...

#include <iuser_class.h>

Inheritance diagram for mi::neuraylib::IUser_class:

Public Member Functions

virtual IUser_classcopy () const =0
 Creates a copy of the database element. More...
 
virtual const char * get_class_name () const =0
 Returns a human readable identifier for the class this database element belongs to. More...
 
virtual IArrayget_references (ITransaction *transaction) const =0
 Returns the list of elements referenced by this element. More...
 
- Public Member Functions inherited from mi::neuraylib::ISerializable
virtual base::Uuid get_class_id () const =0
 Returns the class ID of the object. More...
 
virtual void serialize (ISerializer *serializer) const =0
 Serializes the object to the given serializer. More...
 
virtual void deserialize (IDeserializer *deserializer)=0
 Deserializes the object from the given deserializer. More...
 
- Public Member Functions inherited from mi::base::IInterface
virtual Uint32 retain () const =0
 Increments the reference count. More...
 
virtual Uint32 release () const =0
 Decrements the reference count. More...
 
virtual const IInterfaceget_interface (const Uuid &interface_id) const =0
 Acquires a const interface from another. More...
 
template<class T>
const T * get_interface () const
 Acquires a const interface from another. More...
 
virtual IInterfaceget_interface (const Uuid &interface_id)=0
 Acquires a mutable interface from another. More...
 
template<class T>
T * get_interface ()
 Acquires a mutable interface from another. More...
 
virtual Uuid get_iid () const =0
 Returns the interface ID of the most derived interface. More...
 

Additional Inherited Members

- Public Types inherited from mi::base::Interface_declare< 0xa8bbfac5, ... >
typedef Interface_declare< id1, ... > Self
 Own type. More...
 
typedef Uuid_t< id1, ... > IID
 Declares the interface ID (IID) of this interface. More...
 
- Public Types inherited from mi::base::Interface_declare< 0x7a70f2fb, ... >
typedef Interface_declare< id1, ... > Self
 Own type. More...
 
typedef Uuid_t< id1, ... > IID
 Declares the interface ID (IID) of this interface. More...
 
- Public Types inherited from mi::base::IInterface
typedef Uuid_t<0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0> IID
 Declares the interface ID (IID) of this interface. More...
 
- Static Public Member Functions inherited from mi::base::Interface_declare< 0xa8bbfac5, ... >
static bool compare_iid (const Uuid &iid)
 Compares the interface ID iid against the interface ID of this interface and of its ancestors. More...
 
- Static Public Member Functions inherited from mi::base::Interface_declare< 0x7a70f2fb, ... >
static bool compare_iid (const Uuid &iid)
 Compares the interface ID iid against the interface ID of this interface and of its ancestors. More...
 
- Static Public Member Functions inherited from mi::base::IInterface
static bool compare_iid (const Uuid &iid)
 Compares the interface ID iid against the interface ID of this interface. More...
 

Detailed Description

Abstract interface for user-defined classes.

All user-defined classes have to be derived from this interface. The mixing mi::neuraylib::User_class is helpful to implement this interface (or interfaces derived from it). User-defined classes have to be registered via mi::neuraylib::IExtension_api::register_class().

Member Function Documentation

 copy()

virtual IUser_class * mi::neuraylib::IUser_class::copy ( ) const
pure virtual

Creates a copy of the database element.

Duplicating a database element is used by the database when it needs to create a new version of the given element, e.g., when someone edits an existing element. This member function must create and return a full copy of the element.

Returns
A newly allocated instance of the database element. The pointer represents a complete replica of the database element on which the member function was called and is owned by the database.

 get_class_name()

virtual const char * mi::neuraylib::IUser_class::get_class_name ( ) const
pure virtual

Returns a human readable identifier for the class this database element belongs to.

This name is not required for proper operation, but can be useful for debugging. For example, the name is used to display the class name in the tag table of the HTTP administration console.

Returns
The class name.

 get_references()

virtual IArray * mi::neuraylib::IUser_class::get_references ( ITransaction transaction) const
pure virtual

Returns the list of elements referenced by this element.

The database ensures that elements will not be removed from the database as long as they are referenced by other elements, even if they have been scheduled for removal by mi::neuraylib::ITransaction::remove().

Parameters
transactionA transaction that can be used to create the return value or temporary values.
Returns
An array of strings, where each string is the name of a referenced element. Can be NULL if the element does not refer other elements.