Package oracle.pgx.api

Class PgxPath<ID>

java.lang.Object

oracle.pgx.api.internal.ApiObject

oracle.pgx.api.Destroyable

oracle.pgx.api.PgxPath<ID>

Type Parameters:

ID - the vertex ID type

All Implemented Interfaces:

java.lang.AutoCloseable

public class PgxPath<ID>
extends Destroyable

A path from a source to a destination vertex in a PgxGraph.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	PgxPath.PathIterable<E>
static class	PgxPath.PathIterator<E>	A read-only ListIterator with an additional PgxPath.PathIterator.reset() method to start over iteration.

Method Summary

Modifier and Type	Method	Description
PgxFuture<java.lang.Void>	destroyAsync()	Requests destruction of this object.
boolean	equals(java.lang.Object obj)
boolean	exists()	Checks whether a path exists.
PgxVertex<ID>	getDestination()	Gets the destination vertex.
PgxPath.PathIterable<PgxEdge>	getEdges()	Gets the edges of this path.
PgxGraph	getGraph()	Gets the PgxGraph the Path is defined on.
double	getPathLengthWithCost()	Gets the path cost Note: for hop-based algorithms, this method returns getPathLengthWithHop() as double.
long	getPathLengthWithHop()	Gets the path length in hops.
PgxVertex<ID>	getSource()	Gets the source vertex.
PgxPath.PathIterable<PgxVertex<ID>>	getVertices()	Gets the vertices of this path.
int	hashCode()
java.lang.String	toString()

Methods inherited from class oracle.pgx.api.Destroyable

close, destroy

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Method Detail

getGraph

public PgxGraph getGraph()

Gets the PgxGraph the Path is defined on.

Returns:

the graph

exists

public boolean exists()

Checks whether a path exists.

Returns:

true, if exists

getPathLengthWithHop

public long getPathLengthWithHop()

Gets the path length in hops.

Returns:

number of edges in this path (zero if path doesn't exist)

getPathLengthWithCost

public double getPathLengthWithCost()

Gets the path cost Note: for hop-based algorithms, this method returns getPathLengthWithHop() as double.

Returns:

total cost of this path (zero if path doesn't exist). The returned value equals the sum of the edge costs

getSource

public PgxVertex<ID> getSource()

Gets the source vertex.

Returns:

source vertex

getDestination

public PgxVertex<ID> getDestination()

Gets the destination vertex.

Returns:

destination vertex

getVertices

public PgxPath.PathIterable<PgxVertex<ID>> getVertices()

Gets the vertices of this path.

Returns:

vertices iterable

getEdges

public PgxPath.PathIterable<PgxEdge> getEdges()

Gets the edges of this path.

Returns:

edges iterable

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

destroyAsync

public PgxFuture<java.lang.Void> destroyAsync()

Description copied from class: Destroyable

Requests destruction of this object. After this method returns, the behavior of any method of this class becomes undefined.

Specified by:

destroyAsync in class Destroyable

Returns:

a future which will be completed once the destruction request finishes.

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object