org.neo4j.kernel
Class ExtendedPath

java.lang.Object
  org.neo4j.kernel.ExtendedPath

All Implemented Interfaces:

Iterable<PropertyContainer>, Path

public class ExtendedPath
extends Object
implements Path

Constructor Summary

ExtendedPath(Path start, Relationship lastRelationship)

Method Summary

Node	endNode() Returns the end node of this path.
static Path	extend(Path path, Relationship withRelationship)
Iterator<PropertyContainer>	iterator() Iterates through both the Nodes and Relationships of this path in order.
Relationship	lastRelationship() Returns the last Relationship in this path.
int	length() Returns the length of this path.
Iterable<Node>	nodes() Returns all the nodes in this path starting from the start node going forward towards the end node.
Iterable<Relationship>	relationships() Returns all the relationships in between the nodes which this path consists of.
Iterable<Node>	reverseNodes() Returns all the nodes in this path in reversed order, i.e.
Iterable<Relationship>	reverseRelationships() Returns all the relationships in between the nodes which this path consists of in reverse order, i.e.
Node	startNode() Returns the start node of this path.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.neo4j.graphdb.Path

toString

Constructor Detail

ExtendedPath

public ExtendedPath(Path start,
                    Relationship lastRelationship)

Method Detail

startNode

public Node startNode()

Description copied from interface: Path

Returns the start node of this path. It's also the first node returned from the Path.nodes() iterable.

Specified by:

startNode in interface Path

Returns:

the start node.

endNode

public Node endNode()

Description copied from interface: Path

Returns the end node of this path. It's also the last node returned from Path.nodes() iterable. If the Path.length() of this path is 0 the end node returned by this method is the same as the start node. If a path is emitted from a traverser the end node is the current node where the traverser is at the moment.

Specified by:

endNode in interface Path

Returns:

the end node.

lastRelationship

public Relationship lastRelationship()

Description copied from interface: Path

Returns the last Relationship in this path.

Specified by:

lastRelationship in interface Path

Returns:

the last Relationship in this path, or null if this path contains no Relationships.

relationships

public Iterable<Relationship> relationships()

Description copied from interface: Path

Returns all the relationships in between the nodes which this path consists of. For a path with Path.length() 0 this will be an empty Iterable.

Specified by:

relationships in interface Path

Returns:

the relationships in this path.

reverseRelationships

public Iterable<Relationship> reverseRelationships()

Description copied from interface: Path

Returns all the relationships in between the nodes which this path consists of in reverse order, i.e. starting from the Path.lastRelationship() going backwards towards the first relationship in the path. For a path with Path.length() 0 this will be an empty Iterable.

Specified by:

reverseRelationships in interface Path

Returns:

the relationships in this path in reverse order.

nodes

public Iterable<Node> nodes()

Description copied from interface: Path

Returns all the nodes in this path starting from the start node going forward towards the end node. The first node is the same as Path.startNode() and the last node is the same as Path.endNode(). In between those nodes there can be an arbitrary number of nodes. The shortest path possible is just one node, where also the the start node is the same as the end node.

Specified by:

nodes in interface Path

Returns:

the nodes in this path.

reverseNodes

public Iterable<Node> reverseNodes()

Description copied from interface: Path

Returns all the nodes in this path in reversed order, i.e. starting from the end node going backwards instead of from the start node going forwards. The first node is the same as Path.endNode() and the last node is the same as Path.startNode(). In between those nodes there can be an arbitrary number of nodes. The shortest path possible is just one node, where also the the start node is the same as the end node.

Specified by:

reverseNodes in interface Path

Returns:

the nodes in this path starting from the end node going backwards towards the start node.

length

public int length()

Description copied from interface: Path

Returns the length of this path. That is the number of relationships (which is the same as the number of nodes minus one). The shortest path possible is of length 0.

Specified by:

length in interface Path

Returns:

the length (i.e. the number of relationships) in the path.

iterator

public Iterator<PropertyContainer> iterator()

Description copied from interface: Path

Iterates through both the Nodes and Relationships of this path in order. Interleaving Nodes with Relationships, starting and ending with a Node (the Path.startNode() and Path.endNode() respectively).

Specified by:

iterator in interface Iterable<PropertyContainer>

Specified by:

iterator in interface Path

See Also:

Iterable.iterator()

extend

public static Path extend(Path path,
                          Relationship withRelationship)