VGServer::Changelist Class Reference
[Public Application Interface]

Changelist contains a set of flexible data structures used to save temporary changes to the graph, and possibly prepare the changes to be incorporated into the global graph. More...

#include <Changelist.h>

List of all members.

Public Types
typedef std::pair< vertexid_t, const AttributeEdgeTinyBlob * >	edgeblobpair_t
typedef std::vector< edgeblobpair_t >	edgelist_t
Public Member Functions
bool	addEdge (vertexid_t src, vertexid_t tgt, const AttributeEdgeTinyBlob &eb)
	adds a new edge from source to target vertex. returns true for success
bool	addEdge (vertexid_t src, vertexid_t tgt)
	adds a new edge from source to target vertex. returns true for success
bool	addVertex (vertexid_t id, const AttributeVertexTinyBlob &vb)
	adds a new vertex and fills it with the give blob data.
bool	addVertex (vertexid_t id)
	adds a new vertex. Returns true for success (the vertex didnt exist yet)
	Changelist (const class GraphData &graph)
	constructs a new Changelist for the given graph
void	clear ()
	clear the change list
bool	delEdge (vertexid_t src, vertexid_t tgt)
	removes an edge from the graph. returns true if it existed.
bool	delVertex (vertexid_t id)
	deletes a vertex from the graph. returns true if it existed
const AttributeEdgeTinyBlob &	getEdgeChange (vertexid_t src, vertexid_t tgt) const
	return the change object for an edge (the change object _must_ exist)
std::vector< edgeblobpair_t >	getEdgeListChange (vertexid_t src) const
	returns a sorted vector of changed outgoing edges of a vertex.
const AttributeVertexTinyBlob &	getVertexChange (vertexid_t vid) const
	return the change object for a vertex id (the change object _must_ exist)
bool	isEdgeChanged (vertexid_t src, vertexid_t tgt) const
	check if an edge was changed
bool	isVertexChanged (vertexid_t id) const
	check if a vertex was changed
bool	setEdgeAttr (vertexid_t src, vertexid_t tgt, const AttributeEdgeTinyBlob &eb)
	changes the value of an attribute on the edge
bool	setEdgeAttr (vertexid_t src, vertexid_t tgt, unsigned int attrid, const AnyType &value)
	changes the value of an attribute on the edge
bool	setVertexAttr (vertexid_t id, const AttributeVertexTinyBlob &vb)
	change all attribute values on the vertex
bool	setVertexAttr (vertexid_t id, unsigned int attrid, const AnyType &value)
	changes the value of an attribute on the vertex
Friends
class	GraphContainer
	takes the changes directly when merging them into the rtree
class	GraphData
	takes the change maps directly when applying the Changelist.
Classes
struct	vertexidpair_hash_compare

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Detailed Description

Changelist contains a set of flexible data structures used to save temporary changes to the graph, and possibly prepare the changes to be incorporated into the global graph.

Definition at line 39 of file Changelist.h.

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Member Typedef Documentation

typedef std::pair<vertexid_t, const AttributeEdgeTinyBlob*> VGServer::Changelist::edgeblobpair_t

Definition at line 247 of file Changelist.h.

typedef std::vector<edgeblobpair_t> VGServer::Changelist::edgelist_t

Definition at line 248 of file Changelist.h.

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Constructor & Destructor Documentation

VGServer::Changelist::Changelist

(

const class GraphData &

graph

)

[explicit]

constructs a new Changelist for the given graph

Definition at line 11 of file Changelist.cc.

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Member Function Documentation

bool VGServer::Changelist::addEdge	(	vertexid_t	src,
		vertexid_t	tgt,
		const AttributeEdgeTinyBlob &	eb
	)

adds a new edge from source to target vertex. returns true for success

Definition at line 191 of file Changelist.cc.

References VGServer::GraphData::existEdge().

bool VGServer::Changelist::addEdge	(	vertexid_t	src,
		vertexid_t	tgt
	)

adds a new edge from source to target vertex. returns true for success

Definition at line 157 of file Changelist.cc.

References VGServer::AttributePropertiesList::createBlankAttributeBlob(), VGServer::GraphProperties::edgeattr, VGServer::TpAttributeBlob< AllocPolicy >::empty(), VGServer::GraphData::existEdge(), VGServer::GraphData::getEdgeAttrBlob(), and VGServer::GraphData::properties.

Referenced by VGServer::ChangeTimeline::addEdge().

bool VGServer::Changelist::addVertex	(	vertexid_t	id,
		const AttributeVertexTinyBlob &	vb
	)

adds a new vertex and fills it with the give blob data.

Returns true for success (the vertex didnt exist yet)

Definition at line 57 of file Changelist.cc.

References VGServer::GraphData::existVertex().

bool VGServer::Changelist::addVertex

(

vertexid_t

id

)

adds a new vertex. Returns true for success (the vertex didnt exist yet)

Definition at line 25 of file Changelist.cc.

References VGServer::AttributePropertiesList::createBlankAttributeBlob(), VGServer::TpAttributeBlob< AllocPolicy >::empty(), VGServer::GraphData::existVertex(), VGServer::GraphData::getVertexAttrBlob(), VGServer::GraphData::properties, and VGServer::GraphProperties::vertexattr.

Referenced by VGServer::ChangeTimeline::addVertex().

void VGServer::Changelist::clear

(

)

clear the change list

Definition at line 16 of file Changelist.cc.

Referenced by VGServer::ChangeTimeline::clear().

bool VGServer::Changelist::delEdge	(	vertexid_t	src,
		vertexid_t	tgt
	)

removes an edge from the graph. returns true if it existed.

Definition at line 270 of file Changelist.cc.

References VGServer::GraphData::existEdge().

Referenced by VGServer::ChangeTimeline::delEdge().

bool VGServer::Changelist::delVertex

(

vertexid_t

id

)

deletes a vertex from the graph. returns true if it existed

Definition at line 132 of file Changelist.cc.

References VGServer::GraphData::existVertex().

Referenced by VGServer::ChangeTimeline::delVertex().

const AttributeEdgeTinyBlob& VGServer::Changelist::getEdgeChange	(	vertexid_t	src,
		vertexid_t	tgt
	)			const [inline]

return the change object for an edge (the change object _must_ exist)

Definition at line 239 of file Changelist.h.

Referenced by VGServer::ChangeTimeline::addEdge(), and VGServer::ChangeTimeline::setEdgeAttr().

std::vector< Changelist::edgeblobpair_t > VGServer::Changelist::getEdgeListChange

(

vertexid_t

src

)

const

returns a sorted vector of changed outgoing edges of a vertex.

the vector contains a pair in order to include the target vertex id.

Definition at line 297 of file Changelist.cc.

const AttributeVertexTinyBlob& VGServer::Changelist::getVertexChange

(

vertexid_t

vid

)

const [inline]

return the change object for a vertex id (the change object _must_ exist)

Definition at line 227 of file Changelist.h.

Referenced by VGServer::ChangeTimeline::addVertex(), and VGServer::ChangeTimeline::setVertexAttr().

bool VGServer::Changelist::isEdgeChanged	(	vertexid_t	src,
		vertexid_t	tgt
	)			const [inline]

check if an edge was changed

Definition at line 231 of file Changelist.h.

bool VGServer::Changelist::isVertexChanged

(

vertexid_t

id

)

const [inline]

check if a vertex was changed

Definition at line 223 of file Changelist.h.

bool VGServer::Changelist::setEdgeAttr	(	vertexid_t	src,
		vertexid_t	tgt,
		const AttributeEdgeTinyBlob &	eb
	)

changes the value of an attribute on the edge

Definition at line 247 of file Changelist.cc.

References VGServer::GraphData::existEdge().

bool VGServer::Changelist::setEdgeAttr	(	vertexid_t	src,
		vertexid_t	tgt,
		unsigned int	attrid,
		const AnyType &	value
	)

changes the value of an attribute on the edge

Definition at line 218 of file Changelist.cc.

References VGServer::GraphProperties::edgeattr, VGServer::TpAttributeBlob< AllocPolicy >::empty(), VGServer::GraphData::getEdgeAttrBlob(), VGServer::GraphData::properties, and VGServer::TpAttributeBlob< AllocPolicy >::putAttrChainValue().

Referenced by VGServer::ChangeTimeline::setEdgeAttr().

bool VGServer::Changelist::setVertexAttr	(	vertexid_t	id,
		const AttributeVertexTinyBlob &	vb
	)

change all attribute values on the vertex

Definition at line 110 of file Changelist.cc.

References VGServer::GraphData::existVertex().

bool VGServer::Changelist::setVertexAttr	(	vertexid_t	id,
		unsigned int	attrid,
		const AnyType &	value
	)

changes the value of an attribute on the vertex

Definition at line 83 of file Changelist.cc.

References VGServer::TpAttributeBlob< AllocPolicy >::empty(), VGServer::GraphData::getVertexAttrBlob(), VGServer::GraphData::properties, VGServer::TpAttributeBlob< AllocPolicy >::putAttrChainValue(), and VGServer::GraphProperties::vertexattr.

Referenced by VGServer::ChangeTimeline::setVertexAttr().

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Friends And Related Function Documentation

friend class GraphContainer [friend]

takes the changes directly when merging them into the rtree

Definition at line 46 of file Changelist.h.

friend class GraphData [friend]

takes the change maps directly when applying the Changelist.

Definition at line 43 of file Changelist.h.

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

• Changelist.h
• Changelist.cc

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