PHP Class Trismegiste\Mondrian\Graph\Digraph

Digraph is a directed graph with 0 or 1 directed edge between two vertices. Therefore, there are at maximum two edges between two vertices (the two directions)

Inheritance: implements Trismegiste\Mondrian\Graph\Graph

显示文件 Open project: trismegiste/mondrian Class Usage Examples

Protected Properties

Property	Type	Description
$adjacency	SplObjectStorage	The adjacencies list of one vertex is a hashmap Target vertex -> Edge

Public Methods

Method	Description
__construct ( )
addEdge ( Vertex $source, Vertex $target )	Add a directed edge if it does not already exist
addVertex ( Vertex $v )	Add a vertex to the graph without edge Note : Idempotent method
getEdgeIterator ( Vertex $v )	{@inheritDoc}
getEdgeSet ( ) : Edge[]	Get the edges set
getPartition ( )	{@inheritDoc}
getSuccessor ( Vertex $v ) : Vertex[]	Returns successor(s) of a given vertex (a.k.a all vertices targeted by edges coming from the given vertex)
getVertexSet ( ) : Vertex[]	Get the vertices in the graph
searchEdge ( Vertex $source, Vertex $target ) : Edge	Searches an existing directed edge between two vertices

Method Details

__construct() public method

public __construct ( )

addEdge() public method

Add a directed edge if it does not already exist

public addEdge ( Vertex $source, Vertex $target )
$source	Vertex
$target	Vertex

addVertex() public method

Add a vertex to the graph without edge Note : Idempotent method

public addVertex ( Vertex $v )
$v	Vertex

getEdgeIterator() public method

{@inheritDoc}

public getEdgeIterator ( Vertex $v )
$v	Vertex

getEdgeSet() public method

Get the edges set

public getEdgeSet ( ) : Edge[]
return	Edge[]

getPartition() public method

{@inheritDoc}

public getPartition ( )

getSuccessor() public method

Returns successor(s) of a given vertex (a.k.a all vertices targeted by edges coming from the given vertex)

public getSuccessor ( Vertex $v ) : Vertex[]
$v	Vertex
return	Vertex[]	array of successor vertex

getVertexSet() public method

Get the vertices in the graph

public getVertexSet ( ) : Vertex[]
return	Vertex[]

searchEdge() public method

Searches an existing directed edge between two vertices

public searchEdge ( Vertex $source, Vertex $target ) : Edge
$source	Vertex
$target	Vertex
return	Edge	the edge or null

Property Details

$adjacency protected_oe property

The adjacencies list of one vertex is a hashmap Target vertex -> Edge

protected SplObjectStorage $adjacency
return	SplObjectStorage