IlsUsesDynamicArray< UserType, UsedType > Class Template Reference

Dynamic array of uses relations. More...

#include <ilserver/model.h>

Inheritance diagram for IlsUsesDynamicArray< UserType, UsedType >:

Public Types
typedef IlsUsesDynamicArray< UserType, UsedType >	Myself
	Myself is the type of the instantiated template class.
typedef IlsIndexedPartial< UserType, UsedType, Myself >	Partial
	This class is an intermediate class that stores array elements.

Public Member Functions
	IlsUsesDynamicArray (UserType &user, unsigned int size=0, IlsRelationId identifier=IlsDefaultRelationId, IlsActivity activity=IlsModel::GetDefaultActivity(), IlsBoolean mandatory=IlsFalse)
	Constructor. More...
virtual	~IlsUsesDynamicArray ()
	This destructor breaks all relations stored in the array.
Myself &	clear ()
virtual void	cut (unsigned int rank)
	Is called when a cut is applied to the target of the relation.
IlsActivity	getActivity () const
virtual IlsViewed *	getIdentifiedElement (const IlsString &id) const
	This virtual member function is used to retrieve an identified object from the relation. More...
UsedType **	getRemoved (int &)
	During a notification phase, this member function returns an array of pointers to the objects that have been removed from the array since the last notification phase. More...
UserType &	getUser () const
	Returns the user of the array-relation.
virtual IlsBoolean	hasElement (IlsViewed &) const
	This virtual member function returns IlsTrue if the element is a target of the relation or IlsFalse otherwise.
Partial &	operator[] (int rank)
Myself &	renew (unsigned int=0)
Public Member Functions inherited from IlsDynamicArrayRelation
unsigned int	getSize () const
Public Member Functions inherited from IlsArrayRelation
int *	getAdded (int &s)
	During a notification phase, this member function returns an arrays of indices corresponding to the elements that have been added to the array since the last notification phase. More...
IlsBoolean	isModified ()
	During a notification phase, this member function returns IlsTrue if the array-relation has been modified since the last notification phase. More...
Public Member Functions inherited from IlsOptionalRelation
IlsRelationId	getIdentifier () const
IlsBoolean	isMandatory ()
	Returns IlsTrue if the relation is mandatory. Otherwise, it returns IlsFalse. When a relation is mandatory, a cut applied to the target of the relation is propagated to its origin. By default, the function returns IlsFalse for n-ary relations and IlsTrue for unary relations.

Detailed Description

template<class UserType, class UsedType>
class IlsUsesDynamicArray< UserType, UsedType >

Dynamic array of uses relations.

Library: server

See also

IlsException, IlsEntity, IlsObject, IlsUses, IlsUsesDynamicArray::Partial, IlsUsesFixedArray, IlsUsesList.

Constructor & Destructor Documentation

IlsUsesDynamicArray()

template<class UserType , class UsedType >

IlsUsesDynamicArray< UserType, UsedType >::IlsUsesDynamicArray	(	UserType &	user,
		unsigned int	size = 0,
		IlsRelationId	identifier = IlsDefaultRelationId,
		IlsActivity	activity = IlsModel::GetDefaultActivity(),
		IlsBoolean	mandatory = IlsFalse
	)

Constructor.

\param user A reference to the user object.
\param size Specifies the maximum size of the array.

Parameters

identifier	It represents the relation identifier and behaves like a numeric type. Its default value is IlsDefaultRelationId. It is generally used to invert relations.
activity	Specifies whether the relation is active or not. A relation is active if its modification sets off the recomputation of derived data members. The default value is the one returned by the member function IlsModel::GetDefaultActivity(), which is ILS_INACTIVE by default.
mandatory	Specifies whether the relation is mandatory. For details, see the member function isMandatory().

Member Function Documentation

clear()

template<class UserType , class UsedType >

Myself& IlsUsesDynamicArray< UserType, UsedType >::clear

(

)

\short Sets all the array elements to zero.

Exceptions

IlsUpdateForbidden

If the function isUpdateAllowed() returns IlsFalse for the type in which the relation is declared.

getActivity()

template<class UserType , class UsedType >

IlsActivity IlsUsesDynamicArray< UserType, UsedType >::getActivity

(

)

const

\short Returns \c ILS_ACTIVE if the relation has
been set as active. Otherwise, it returns \c ILS_INACTIVE.

For details, see the constructor.

getIdentifiedElement()

template<class UserType , class UsedType >

virtual IlsViewed* IlsUsesDynamicArray< UserType, UsedType >::getIdentifiedElement ( const IlsString &  id ) const

virtual

This virtual member function is used to retrieve an identified object from the relation.

The member function IlsViewed::getKeyIdentifier() is used to retrieve the identifier of the relation element.

Note

On all subclasses of this class, the complexity of this method is always linear, in terms of the number of elements in the relation, even for set relations.

Reimplemented from IlsViewedRel.

getRemoved()

template<class UserType , class UsedType >

UsedType** IlsUsesDynamicArray< UserType, UsedType >::getRemoved

(

int &

)

During a notification phase, this member function returns an array of pointers to the objects that have been removed from the array since the last notification phase.

It returns an empty array if no element has been removed from the array. The argument gives the size of the array as a return value.

You must explicitly destroy this array when you no longer need it. To do so, use delete with square brackets [].

operator[]()

template<class UserType , class UsedType >

Partial& IlsUsesDynamicArray< UserType, UsedType >::operator[]

(

int

rank

)

\short Returns the `i`-th array element.

Partial can be assigned the type UsedTypeP.

Exceptions

IlsSizeViolation

If i is greater than the size specified for the array (minus 1).

renew()

template<class UserType , class UsedType >

Myself& IlsUsesDynamicArray< UserType, UsedType >::renew

(

unsigned int

= 0

)

\short Lets you allocate or create a new array

with a specified size.

It takes the new array size as its argument with \c 0 as the default
value. Smart pointers to objects contained in the old array are erased
and replaced with null smart pointers in the new array.

Exceptions

IlsUpdateForbidden

If the function isUpdateAllowed() returns IlsFalse for the type in which the relation is declared.