This class implements the main functions necessary to save and load the graph data and metadata information using as strategy a bounding box to create a region that defines a group of elements. More...

#include <BoxLoaderStrategy.h>

Inheritance diagram for te::graph::BoxLoaderStrategy:

Public Member Functions
	BoxLoaderStrategy (te::graph::GraphMetadata *metadata)
	Default constructor. More...

virtual	~BoxLoaderStrategy ()
	Default destructor. More...

Database Box Graph Loader Strategy Methods
Method used to manager a graph data
virtual void	loadDataByVertexId (int vertexId, te::graph::AbstractGraph g, te::graph::GraphCache gc=0)
	Functio used to load a group of vertex elements given a base element. More...

virtual void	loadDataByEdgeId (int edgeId, te::graph::AbstractGraph g, te::graph::GraphCache gc=0)
	Functio used to load a group of edges elements given a base element. More...

Protected Member Functions
te::gm::Envelope *	calculateBox (te::gm::Point *p, std::string tableName)
	Generate a box with p as center. The new box will have n% of the total graph height and n% of total graph width. More...

Protected Attributes
te::graph::GraphMetadata *	m_graphMetadata
	Graph metadata attribute. More...

Abstract Graph Loader Strategy Methods
Method used to manager a graph data
virtual void	saveData (GraphData *data)
	Save the graph data structure in Data Source. More...

virtual void	removeEdge (int id)
	Function used to remove a edge saved in a data source. More...

virtual void	removeVertex (int id)
	Function used to remove a vertex saved in a data source. More...

te::graph::GraphMetadata *	getMetadata ()
	It returns a pointer to a class that describes the graph metadata. More...

void	saveGraphEdgeList (GraphData *data)
	Used to save the edge elements from a graph data. More...

void	saveVertexAttributes (GraphData *data)
	Used to save the vertex elements attributes from a graph data. More...

void	saveGraphVertexList (GraphData *data)
	Used to save the vertex elements from a graph data. More...

void	saveEdgeAttributes (GraphData *data)
	Used to save the edges elements attributes from a graph data. More...

Vertex *	loadVertex (int id)
	Function used to load one vertex given a ID. More...

Vertex *	loadVertexAttrs (int id)
	Function used to load one vertex given a ID. More...

Edge *	loadEdge (int id)
	Function used to load one edge given a ID. More...

Edge *	loadEdgeAttrs (int id)
	Function used to load one edge given a ID. More...

Detailed Description

This class implements the main functions necessary to save and load the graph data and metadata information using as strategy a bounding box to create a region that defines a group of elements.

See also: AbstractGraphLoaderStrategy

Definition at line 74 of file BoxLoaderStrategy.h.

Constructor & Destructor Documentation

te::graph::BoxLoaderStrategy::BoxLoaderStrategy ( te::graph::GraphMetadata * metadata )

Default constructor.

Definition at line 53 of file BoxLoaderStrategy.cpp.

References ~BoxLoaderStrategy().

te::graph::BoxLoaderStrategy::~BoxLoaderStrategy ( )

virtualdefault

Default destructor.

Referenced by BoxLoaderStrategy().

Member Function Documentation

te::gm::Envelope * te::graph::BoxLoaderStrategy::calculateBox	(	te::gm::Point *	p,
		std::string	tableName
	)

protected

Generate a box with p as center. The new box will have n% of the total graph height and n% of total graph width.

Parameters

p	Terralib object that defines a geometric point.
tableName	Attribute used to define the table name that contains the graph elements

Returns: Terralib object that defines geometric region.

Definition at line 392 of file BoxLoaderStrategy.cpp.

References te::graph::GraphMetadata::getEnvelope(), te::gm::Envelope::getHeight(), te::graph::AbstractGraphLoaderStrategy::getMetadata(), te::gm::Envelope::getWidth(), te::gm::Point::getX(), te::gm::Point::getY(), te::graph::GraphMetadata::m_boxPercentSize, te::gm::Envelope::m_llx, te::gm::Envelope::m_lly, te::gm::Envelope::m_urx, and te::gm::Envelope::m_ury.

Referenced by loadDataByEdgeId(), and loadDataByVertexId().

te::graph::GraphMetadata * te::graph::AbstractGraphLoaderStrategy::getMetadata ( )

inherited

It returns a pointer to a class that describes the graph metadata.

Returns: A valid pointer if exists and null pointer in other case

Definition at line 62 of file AbstractGraphLoaderStrategy.cpp.

References te::graph::AbstractGraphLoaderStrategy::m_graphMetadata.

Referenced by calculateBox(), te::graph::Graph::Graph(), and te::graph::GraphCache::GraphCache().

void te::graph::BoxLoaderStrategy::loadDataByEdgeId	(	int	edgeId,
		te::graph::AbstractGraph *	g,
		te::graph::GraphCache *	gc = `0`
	)

virtual

Functio used to load a group of edges elements given a base element.

Parameters

edgeId	Attribute used to identify the base element
g	Pointer to a graph, parent of this element
gc	This is a optional attribute, if present the cache will be check if the already been loaded

Implements te::graph::AbstractGraphLoaderStrategy.

Definition at line 223 of file BoxLoaderStrategy.cpp.

References te::graph::AbstractGraph::add(), te::graph::Edge::addAttribute(), calculateBox(), te::graph::GraphCache::checkCacheByEdgeId(), te::graph::Edge_List, te::dt::GEOMETRY_TYPE, te::graph::Vertex::getAttributes(), te::da::DataSource::getDataSetType(), te::graph::GraphMetadata::getDataSource(), te::graph::GraphMetadata::getEdgeTableName(), te::da::Field::getExpression(), te::graph::Edge::getIdFrom(), te::graph::AbstractGraph::getMetadata(), te::dt::Property::getName(), te::gm::Geometry::getSRID(), te::graph::GraphMetadata::getStorageMode(), te::graph::GraphMetadata::getType(), te::dt::Property::getType(), te::graph::GraphMetadata::getVertexProperty(), te::graph::GraphMetadata::getVertexPropertySize(), te::graph::GraphMetadata::getVertexTableName(), te::graph::AbstractGraphLoaderStrategy::loadEdge(), te::graph::AbstractGraphLoaderStrategy::loadEdgeAttrs(), te::graph::AbstractGraphLoaderStrategy::loadVertex(), te::graph::AbstractGraphLoaderStrategy::loadVertexAttrs(), te::graph::AbstractGraphLoaderStrategy::m_graphMetadata, te::da::DataSource::query(), te::graph::Edge::setAttributeVecSize(), te::graph::Globals::sm_tableEdgeModelAttrVFrom, te::graph::Globals::sm_tableEdgeModelAttrVTo, te::graph::Globals::sm_tableVertexModelAttrId, TE_TR, and te::graph::Vertex_List.

void te::graph::BoxLoaderStrategy::loadDataByVertexId	(	int	vertexId,
		te::graph::AbstractGraph *	g,
		te::graph::GraphCache *	gc = `0`
	)

virtual

Functio used to load a group of vertex elements given a base element.

Parameters

vertexId	Attribute used to identify the base element
g	Pointer to a graph, parent of this element
gc	This is a optional attribute, if present the cache will be check if the already been loaded

Implements te::graph::AbstractGraphLoaderStrategy.

Definition at line 59 of file BoxLoaderStrategy.cpp.

te::graph::Edge * te::graph::AbstractGraphLoaderStrategy::loadEdge ( int id )

protectedinherited

Function used to load one edge given a ID.

Parameters

id	The edge identifier

Note: This function is used in case the graph was saved using the edge list

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

Definition at line 366 of file AbstractGraphLoaderStrategy.cpp.

References te::graph::Edge::addAttribute(), te::common::Convert2String(), te::da::DataSource::getDataSetType(), te::graph::GraphMetadata::getDataSource(), te::graph::GraphMetadata::getEdgeTableName(), te::graph::AbstractGraphLoaderStrategy::m_graphMetadata, te::da::DataSource::query(), te::graph::Edge::setAttributeVecSize(), te::graph::Globals::sm_tableEdgeModelAttrId, te::graph::Globals::sm_tableEdgeModelAttrVFrom, and te::graph::Globals::sm_tableEdgeModelAttrVTo.

Referenced by loadDataByEdgeId().

te::graph::Edge * te::graph::AbstractGraphLoaderStrategy::loadEdgeAttrs ( int id )

protectedinherited

Function used to load one edge given a ID.

Parameters

id	The edge identifier

Note: This function is used in case the graph was saved using the vertex list

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

Definition at line 414 of file AbstractGraphLoaderStrategy.cpp.

References TE_TR.

Referenced by loadDataByEdgeId().

te::graph::Vertex * te::graph::AbstractGraphLoaderStrategy::loadVertex ( int id )

protectedinherited

Function used to load one vertex given a ID.

Parameters

id	The vertex identifier

Note: This function is used in case the graph was saved using the vertex list

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

Definition at line 314 of file AbstractGraphLoaderStrategy.cpp.

References TE_TR.

Referenced by loadDataByEdgeId(), and loadDataByVertexId().

te::graph::Vertex * te::graph::AbstractGraphLoaderStrategy::loadVertexAttrs ( int id )

protectedinherited

Function used to load one vertex given a ID.

Parameters

id	The vertex identifier

Note: This function is used in case the graph was saved using the edge list

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

Definition at line 320 of file AbstractGraphLoaderStrategy.cpp.

References te::graph::Vertex::addAttribute(), te::common::Convert2String(), te::da::DataSource::getDataSetType(), te::graph::GraphMetadata::getDataSource(), te::graph::GraphMetadata::getVertexTableName(), te::graph::AbstractGraphLoaderStrategy::m_graphMetadata, te::da::DataSource::query(), te::graph::Vertex::setAttributeVecSize(), and te::graph::Globals::sm_tableVertexModelAttrId.

Referenced by loadDataByEdgeId(), and loadDataByVertexId().

void te::graph::AbstractGraphLoaderStrategy::removeEdge ( int id )

virtualinherited

Function used to remove a edge saved in a data source.

Parameters

id	The edge identifier

Reimplemented in te::graph::BottomUpLoaderStrategy, and te::graph::TopDownLoaderStrategy.

Definition at line 81 of file AbstractGraphLoaderStrategy.cpp.

References te::graph::GraphMetadata::getDataSource(), te::graph::AbstractGraphLoaderStrategy::m_graphMetadata, and TE_TR.

Referenced by te::graph::GraphDataManager::removeEdge().

void te::graph::AbstractGraphLoaderStrategy::removeVertex ( int id )

virtualinherited

Function used to remove a vertex saved in a data source.

Parameters

id	The vertex identifier

Reimplemented in te::graph::BottomUpLoaderStrategy, and te::graph::TopDownLoaderStrategy.

Definition at line 89 of file AbstractGraphLoaderStrategy.cpp.

References te::graph::GraphMetadata::getDataSource(), te::graph::AbstractGraphLoaderStrategy::m_graphMetadata, and TE_TR.

Referenced by te::graph::GraphDataManager::removeVertex().

void te::graph::AbstractGraphLoaderStrategy::saveData ( GraphData * data )

virtualinherited

Save the graph data structure in Data Source.

Parameters

data	Pointer to a valid graph data

Reimplemented in te::graph::BottomUpLoaderStrategy, and te::graph::TopDownLoaderStrategy.

Definition at line 67 of file AbstractGraphLoaderStrategy.cpp.

References te::graph::Edge_List, te::graph::GraphMetadata::getDataSource(), te::graph::GraphMetadata::getStorageMode(), te::graph::AbstractGraphLoaderStrategy::m_graphMetadata, te::graph::AbstractGraphLoaderStrategy::saveGraphEdgeList(), and TE_TR.

Referenced by te::graph::GraphDataManager::saveGraphData().

void te::graph::AbstractGraphLoaderStrategy::saveEdgeAttributes ( GraphData * data )

protectedinherited

Used to save the edges elements attributes from a graph data.

Parameters

data	Pointer to a valid graph data

Definition at line 308 of file AbstractGraphLoaderStrategy.cpp.

References TE_TR.

void te::graph::AbstractGraphLoaderStrategy::saveGraphEdgeList ( GraphData * data )

protectedinherited

Used to save the edge elements from a graph data.

Parameters

data	Pointer to a valid graph data

Definition at line 98 of file AbstractGraphLoaderStrategy.cpp.

References te::da::DataSource::add(), te::da::DataSource::getDataSetType(), te::graph::GraphMetadata::getDataSource(), te::graph::GraphData::getEdgeMap(), te::graph::GraphMetadata::getEdgePropertySize(), te::graph::GraphMetadata::getEdgeTableName(), te::graph::GraphMetadata::getVertexPropertySize(), te::graph::GraphData::isDirty(), te::graph::AbstractGraphLoaderStrategy::m_graphMetadata, te::graph::AbstractGraphLoaderStrategy::saveVertexAttributes(), te::mem::DataSetItem::setInt32(), te::mem::DataSetItem::setValue(), and te::da::DataSource::update().

Referenced by te::graph::AbstractGraphLoaderStrategy::saveData().

void te::graph::AbstractGraphLoaderStrategy::saveGraphVertexList ( GraphData * data )

protectedinherited

Used to save the vertex elements from a graph data.

Parameters

data	Pointer to a valid graph data

Definition at line 302 of file AbstractGraphLoaderStrategy.cpp.

References TE_TR.

void te::graph::AbstractGraphLoaderStrategy::saveVertexAttributes ( GraphData * data )

protectedinherited

Used to save the vertex elements attributes from a graph data.

Parameters

data	Pointer to a valid graph data

Definition at line 205 of file AbstractGraphLoaderStrategy.cpp.

References te::da::DataSource::add(), te::da::DataSource::getDataSetType(), te::graph::GraphMetadata::getDataSource(), te::graph::GraphData::getVertexMap(), te::graph::GraphMetadata::getVertexPropertySize(), te::graph::GraphMetadata::getVertexTableName(), te::graph::GraphData::isDirty(), te::graph::AbstractGraphLoaderStrategy::m_graphMetadata, te::mem::DataSetItem::setInt32(), te::mem::DataSetItem::setValue(), and te::da::DataSource::update().

Referenced by te::graph::AbstractGraphLoaderStrategy::saveGraphEdgeList().

Member Data Documentation

te::graph::GraphMetadata* te::graph::AbstractGraphLoaderStrategy::m_graphMetadata

protectedinherited

Graph metadata attribute.

Definition at line 203 of file AbstractGraphLoaderStrategy.h.

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

Public Member Functions

Protected Member Functions

Protected Attributes

Abstract Graph Loader Strategy Methods

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation