This class defines a commun interface to represents a graph iterator class. The main diferency to anothers iterators is the possibility to iterate over the edges or vertexs from a graph. More...

#include <QueryIterator.h>

Inheritance diagram for te::graph::QueryIterator:

Public Member Functions
	QueryIterator (te::graph::AbstractGraph *g)
	Default constructor. More...

	QueryIterator (te::graph::AbstractGraph g, te::da::Expression e)
	Constructor. More...

virtual	~QueryIterator ()
	Virtual destructor. More...

Vertex Iterator Methods
Method used to access vertex elements from a graph.
virtual te::graph::Vertex *	getNextVertex ()
	It returns a pointer to the next vertex element of a graph. More...

virtual te::graph::Vertex *	getPreviousVertex ()
	It returns a pointer to the previous vertex element of a graph. More...

virtual bool	isVertexIteratorAfterEnd ()
	Used to check the iterator position. More...

virtual size_t	getVertexInteratorCount ()
	It returns the number of elements of this iterator. More...

void	listIsolatedVertex (bool flag)
	Used to set that the isolated vertex must be listed. More...

virtual te::graph::Edge *	getNextEdge ()
	It returns a pointer to the next edge element of a graph. More...

virtual te::graph::Edge *	getPreviousEdge ()
	It returns a pointer to the previous edge element of a graph. More...

virtual bool	isEdgeIteratorAfterEnd ()
	Used to check the iterator position. More...

virtual size_t	getEdgeInteratorCount ()
	It returns the number of elements of this iterator. More...

Protected Attributes
std::auto_ptr< te::da::DataSet >	m_edgeQuery
	Attribute used to keep the edge iterator. More...

te::graph::AbstractGraph *	m_graph
	Pointer to a abstract graph used to access the elements. More...

bool	m_listIsolatedVertex
	Flag used to indicated that the isolated vertex will be listed. More...

std::auto_ptr< te::da::DataSet >	m_vertexQuery
	Attribute used to keep the vertex iterator. More...

Vertex Access Methods
Method used to access vertex elements from a graph.
te::da::Expression *	m_exp

virtual te::graph::Vertex *	getFirstVertex ()
	It returns a pointer to the first vertex element of a graph. More...

virtual te::graph::Edge *	getFirstEdge ()
	It returns a pointer to the first edge element of a graph. More...

Detailed Description

This class defines a commun interface to represents a graph iterator class. The main diferency to anothers iterators is the possibility to iterate over the edges or vertexs from a graph.

The query strategy is used to select a restrict group of elements given a "where clause".

See also: AbstractIterator

Definition at line 66 of file QueryIterator.h.

Constructor & Destructor Documentation

te::graph::QueryIterator::QueryIterator ( te::graph::AbstractGraph * g )

Default constructor.

Parameters

g	Pointer to a valid graph implementation

te::graph::QueryIterator::QueryIterator	(	te::graph::AbstractGraph *	g,
		te::da::Expression *	e
	)

Constructor.

Parameters

g	Pointer to a valid graph implementation
e	Object used to define the where clause

virtual te::graph::QueryIterator::~QueryIterator ( )

virtual

Virtual destructor.

Member Function Documentation

virtual size_t te::graph::AbstractIterator::getEdgeInteratorCount ( )

virtualinherited

It returns the number of elements of this iterator.

Returns: Size t value.

Reimplemented in te::graph::MemoryIterator.

virtual te::graph::Edge* te::graph::QueryIterator::getFirstEdge ( )

virtual

It returns a pointer to the first edge element of a graph.

Returns: A valid edge point if the element was found and a null pointer in other case.

Implements te::graph::AbstractIterator.

virtual te::graph::Vertex* te::graph::QueryIterator::getFirstVertex ( )

virtual

It returns a pointer to the first vertex element of a graph.

Returns: A valid vertex point if the element was found and a null pointer in other case.

Implements te::graph::AbstractIterator.

virtual te::graph::Edge* te::graph::AbstractIterator::getNextEdge ( )

virtualinherited

It returns a pointer to the next edge element of a graph.

Returns: A valid edge point if the element was found and a null pointer in other case.

Reimplemented in te::graph::MemoryIterator.

virtual te::graph::Vertex* te::graph::AbstractIterator::getNextVertex ( )

virtualinherited

It returns a pointer to the next vertex element of a graph.

Returns: A valid vertex point if the element was found and a null pointer in other case.

Reimplemented in te::graph::MemoryIterator.

virtual te::graph::Edge* te::graph::AbstractIterator::getPreviousEdge ( )

virtualinherited

It returns a pointer to the previous edge element of a graph.

Returns: A valid edge point if the element was found and a null pointer in other case.

Reimplemented in te::graph::MemoryIterator.

virtual te::graph::Vertex* te::graph::AbstractIterator::getPreviousVertex ( )

virtualinherited

It returns a pointer to the previous vertex element of a graph.

Returns: A valid vertex point if the element was found and a null pointer in other case.

Reimplemented in te::graph::MemoryIterator.

virtual size_t te::graph::AbstractIterator::getVertexInteratorCount ( )

virtualinherited

It returns the number of elements of this iterator.

Returns: Size t value.

Reimplemented in te::graph::MemoryIterator.

virtual bool te::graph::AbstractIterator::isEdgeIteratorAfterEnd ( )

virtualinherited

Used to check the iterator position.

Returns: True if the iterator is at after the end and false in other case

Reimplemented in te::graph::MemoryIterator.

virtual bool te::graph::AbstractIterator::isVertexIteratorAfterEnd ( )

virtualinherited

Used to check the iterator position.

Returns: True if the iterator is at after the end and false in other case

Reimplemented in te::graph::MemoryIterator.

void te::graph::AbstractIterator::listIsolatedVertex ( bool flag )

inherited

Used to set that the isolated vertex must be listed.

Parameters

flag	Flag used to set.

Member Data Documentation

std::auto_ptr<te::da::DataSet> te::graph::AbstractIterator::m_edgeQuery

protectedinherited

Attribute used to keep the edge iterator.

Definition at line 168 of file AbstractIterator.h.

te::da::Expression* te::graph::QueryIterator::m_exp

protected

Definition at line 113 of file QueryIterator.h.

te::graph::AbstractGraph* te::graph::AbstractIterator::m_graph

protectedinherited

Pointer to a abstract graph used to access the elements.

Definition at line 165 of file AbstractIterator.h.

bool te::graph::AbstractIterator::m_listIsolatedVertex

protectedinherited

Flag used to indicated that the isolated vertex will be listed.

Definition at line 170 of file AbstractIterator.h.

std::auto_ptr<te::da::DataSet> te::graph::AbstractIterator::m_vertexQuery

protectedinherited

Attribute used to keep the vertex iterator.

Definition at line 167 of file AbstractIterator.h.

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

/home/castejon/castejon_files/develop/terralib5/git_master/src/terralib/graph/iterator/QueryIterator.h

Public Member Functions

Protected Attributes

Vertex Access Methods

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation