Relation map between a key in parent model and a key in child model. More...

Public Types
typedef std::vector< RelationColumnPair >::const_iterator	const_iterator
	STL const iterator.

Public Member Functions
void	addColumnPair (int parentModelColumn, int childModelColumn)
	Add a pair of columns. More...

void	setKey (const PrimaryKey &parentModelPk, const ForeignKey &childModelFk)
	Set rekation key from parent model primary key and child model foreign key. More...

int	columnPairCount () const
	Get count of column pairs in this key.

bool	containsColumnPair (int parentModelColumn, int childModelColumn) const
	Check if this container allready has a column pair.

RelationColumnPair	columnPairAt (int index) const
	Get column pair at index. More...

int	greatestParentModelColumn () const
	Get the greatest column for parent model. More...

int	greatestChildModelColumn () const
	Get the greatest column for child model. More...

bool	isNull () const
	Check if this relation key is null.

void	clear ()
	Clear.

const_iterator	begin () const
	Get const iterator to the beginning.

const_iterator	end () const
	Get const iterator to the end.

Detailed Description

Relation map between a key in parent model and a key in child model.

Definition at line 36 of file RelationKey.h.

Member Function Documentation

void Mdt::ItemModel::RelationKey::addColumnPair	(	int	parentModelColumn,
		int	childModelColumn
	)

Add a pair of columns.

Definition at line 29 of file RelationKey.cpp.

RelationColumnPair Mdt::ItemModel::RelationKey::columnPairAt ( int index ) const

inline

Get column pair at index.

Precondition: index must be in a valid range ( 0 <= index < columnPairCount() )

Definition at line 74 of file RelationKey.h.

int Mdt::ItemModel::RelationKey::greatestChildModelColumn ( ) const

Get the greatest column for child model.

Returns -1 if this key is empty.

Definition at line 71 of file RelationKey.cpp.

int Mdt::ItemModel::RelationKey::greatestParentModelColumn ( ) const

Get the greatest column for parent model.

Returns -1 if this key is empty.

Definition at line 59 of file RelationKey.cpp.

void Mdt::ItemModel::RelationKey::setKey	(	const PrimaryKey &	parentModelPk,
		const ForeignKey &	childModelFk
	)

Set rekation key from parent model primary key and child model foreign key.

Precondition: parentModelPk must not be null; childModelFk must not be null; Both parentModelPk and childModelFk must have the same count of fields

Definition at line 37 of file RelationKey.cpp.

The documentation for this class was generated from the following files: