com.graphhopper.routing.querygraph

Class VirtualEdgeIteratorState

java.lang.Object

com.graphhopper.routing.querygraph.VirtualEdgeIteratorState

All Implemented Interfaces:

EdgeIteratorState

public class VirtualEdgeIteratorState
extends Object
implements EdgeIteratorState

Creates an edge state decoupled from a graph where nodes, pointList, etc are kept in memory.

Note, this class is not suited for public use and can change with minor releases unexpectedly or even gets removed.

Field Summary

Fields inherited from interface com.graphhopper.util.EdgeIteratorState

REVERSE_STATE, UNFAVORED_EDGE

Constructor Summary

Constructors

Constructor and Description
VirtualEdgeIteratorState(int originalEdgeKey, int edgeKey, int baseNode, int adjNode, double distance, IntsRef edgeFlags, String name, PointList pointList, boolean reverse)

Method Summary

Modifier and Type	Method and Description
EdgeIteratorState	copyPropertiesFrom(EdgeIteratorState fromEdge) Copies the properties of the specified edge into this edge.
EdgeIteratorState	detach(boolean reverse) Clones this EdgeIteratorState.
PointList	fetchWayGeometry(FetchMode mode) For road network data like OSM a way is often not just a straight line.
boolean	get(BooleanEncodedValue property)
double	get(DecimalEncodedValue property)
<T extends Enum<?>> T	get(EnumEncodedValue<T> property)
int	get(IntEncodedValue property)
String	get(StringEncodedValue property)
int	getAdjNode()
int	getBaseNode() Returns the node used to instantiate the EdgeIterator.
double	getDistance()
int	getEdge()
int	getEdgeKey() Returns the edge key of the current edge.
IntsRef	getFlags() Returns edge properties stored in direction of the raw database layout.
String	getName()
int	getOrigEdgeFirst()
int	getOrigEdgeLast()
int	getOriginalEdgeKey() This method returns the original (not virtual!) edge key.
boolean	getReverse(BooleanEncodedValue property)
double	getReverse(DecimalEncodedValue property)
<T extends Enum<?>> T	getReverse(EnumEncodedValue<T> property)
int	getReverse(IntEncodedValue property)
String	getReverse(StringEncodedValue property)
EdgeIteratorState	set(BooleanEncodedValue property, boolean value)
EdgeIteratorState	set(BooleanEncodedValue property, boolean fwd, boolean bwd)
EdgeIteratorState	set(DecimalEncodedValue property, double value)
EdgeIteratorState	set(DecimalEncodedValue property, double fwd, double bwd)
<T extends Enum<?>> EdgeIteratorState	set(EnumEncodedValue<T> property, T value)
<T extends Enum<?>> EdgeIteratorState	set(EnumEncodedValue<T> property, T fwd, T bwd)
EdgeIteratorState	set(IntEncodedValue property, int value)
EdgeIteratorState	set(IntEncodedValue property, int fwd, int bwd)
EdgeIteratorState	set(StringEncodedValue property, String value)
EdgeIteratorState	set(StringEncodedValue property, String fwd, String bwd)
EdgeIteratorState	setDistance(double dist)
EdgeIteratorState	setFlags(IntsRef flags) Stores the specified edgeFlags down to the DataAccess
EdgeIteratorState	setName(String name)
EdgeIteratorState	setReverse(BooleanEncodedValue property, boolean value)
EdgeIteratorState	setReverse(DecimalEncodedValue property, double value)
<T extends Enum<?>> EdgeIteratorState	setReverse(EnumEncodedValue<T> property, T value)
EdgeIteratorState	setReverse(IntEncodedValue property, int value)
EdgeIteratorState	setReverse(StringEncodedValue property, String value)
void	setReverseEdge(EdgeIteratorState reverseEdge)
void	setUnfavored(boolean unfavored) This method sets edge to unfavored status for routing from the start or to the stop location.
EdgeIteratorState	setWayGeometry(PointList list)
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

VirtualEdgeIteratorState

public VirtualEdgeIteratorState(int originalEdgeKey,
                                int edgeKey,
                                int baseNode,
                                int adjNode,
                                double distance,
                                IntsRef edgeFlags,
                                String name,
                                PointList pointList,
                                boolean reverse)

Method Detail

getOriginalEdgeKey

public int getOriginalEdgeKey()

This method returns the original (not virtual!) edge key. I.e. also the direction is already correctly encoded.

See Also:

EdgeIteratorState.getEdgeKey()

getEdge

public int getEdge()

Specified by:

getEdge in interface EdgeIteratorState

Returns:

the edge id of the current edge. Do not make any assumptions about the concrete values, except that for an implementation it is recommended that they'll be contiguous.

getEdgeKey

public int getEdgeKey()

Description copied from interface: EdgeIteratorState

Returns the edge key of the current edge. The edge id can be derived from the edge key by calling GHUtility.getEdgeFromEdgeKey(int), but the edge key also contains information about the direction of the edge. The edge key is even when the edge is oriented in storage direction and odd otherwise. You can use the edge key to retrieve an edge state in the associated direction using Graph.getEdgeIteratorStateForKey(int). Loop edges are always returned in 'forward' direction even when you use an odd edge key.

Specified by:

getEdgeKey in interface EdgeIteratorState

getBaseNode

public int getBaseNode()

Description copied from interface: EdgeIteratorState

Returns the node used to instantiate the EdgeIterator. Often only used for convenience reasons. Do not confuse this with a source node of a directed edge.

Specified by:

getBaseNode in interface EdgeIteratorState

Returns:

the requested node itself

See Also:

EdgeIterator

getAdjNode

public int getAdjNode()

Specified by:

getAdjNode in interface EdgeIteratorState

Returns:

the adjacent node of baseNode for the current edge.

See Also:

EdgeIterator

fetchWayGeometry

public PointList fetchWayGeometry(FetchMode mode)

Description copied from interface: EdgeIteratorState

For road network data like OSM a way is often not just a straight line. The nodes between the junction nodes are called pillar nodes. The junction nodes are called tower nodes and used for routing. The pillar nodes are necessary to have an exact geometry. See the docs for more information (docs/core/low-level-api.md#what-are-pillar-and-tower-nodes). Updates to the returned list are not reflected in the graph, for that you've to use setWayGeometry.

Specified by:

fetchWayGeometry in interface EdgeIteratorState

Parameters:

mode - FetchMode

Returns:

the pillar and/or tower nodes depending on the mode.

setWayGeometry

public EdgeIteratorState setWayGeometry(PointList list)

Specified by:

setWayGeometry in interface EdgeIteratorState

Parameters:

list - is a sorted collection of coordinates between the base node and the current adjacent node. Specify the list without the adjacent and base node. This method can be called multiple times, but if the distance changes, the setDistance method is not called automatically.

getDistance

public double getDistance()

Specified by:

getDistance in interface EdgeIteratorState

Returns:

the distance of the current edge in meter

setDistance

public EdgeIteratorState setDistance(double dist)

Specified by:

setDistance in interface EdgeIteratorState

getFlags

public IntsRef getFlags()

Description copied from interface: EdgeIteratorState

Returns edge properties stored in direction of the raw database layout. So do not use it directly, instead use the appropriate set/get methods with its EncodedValue object.

Specified by:

getFlags in interface EdgeIteratorState

setFlags

public EdgeIteratorState setFlags(IntsRef flags)

Description copied from interface: EdgeIteratorState

Stores the specified edgeFlags down to the DataAccess

Specified by:

setFlags in interface EdgeIteratorState

get

public boolean get(BooleanEncodedValue property)

Specified by:

get in interface EdgeIteratorState

set

public EdgeIteratorState set(BooleanEncodedValue property,
                             boolean value)

Specified by:

set in interface EdgeIteratorState

getReverse

public boolean getReverse(BooleanEncodedValue property)

Specified by:

getReverse in interface EdgeIteratorState

setReverse

public EdgeIteratorState setReverse(BooleanEncodedValue property,
                                    boolean value)

Specified by:

setReverse in interface EdgeIteratorState

set

public EdgeIteratorState set(BooleanEncodedValue property,
                             boolean fwd,
                             boolean bwd)

Specified by:

set in interface EdgeIteratorState

get

public int get(IntEncodedValue property)

Specified by:

get in interface EdgeIteratorState

set

public EdgeIteratorState set(IntEncodedValue property,
                             int value)

Specified by:

set in interface EdgeIteratorState

getReverse

public int getReverse(IntEncodedValue property)

Specified by:

getReverse in interface EdgeIteratorState

setReverse

public EdgeIteratorState setReverse(IntEncodedValue property,
                                    int value)

Specified by:

setReverse in interface EdgeIteratorState

set

public EdgeIteratorState set(IntEncodedValue property,
                             int fwd,
                             int bwd)

Specified by:

set in interface EdgeIteratorState

get

public double get(DecimalEncodedValue property)

Specified by:

get in interface EdgeIteratorState

set

public EdgeIteratorState set(DecimalEncodedValue property,
                             double value)

Specified by:

set in interface EdgeIteratorState

getReverse

public double getReverse(DecimalEncodedValue property)

Specified by:

getReverse in interface EdgeIteratorState

setReverse

public EdgeIteratorState setReverse(DecimalEncodedValue property,
                                    double value)

Specified by:

setReverse in interface EdgeIteratorState

set

public EdgeIteratorState set(DecimalEncodedValue property,
                             double fwd,
                             double bwd)

Specified by:

set in interface EdgeIteratorState

get

public <T extends Enum<?>> T get(EnumEncodedValue<T> property)

Specified by:

get in interface EdgeIteratorState

set

public <T extends Enum<?>> EdgeIteratorState set(EnumEncodedValue<T> property,
                                                 T value)

Specified by:

set in interface EdgeIteratorState

getReverse

public <T extends Enum<?>> T getReverse(EnumEncodedValue<T> property)

Specified by:

getReverse in interface EdgeIteratorState

setReverse

public <T extends Enum<?>> EdgeIteratorState setReverse(EnumEncodedValue<T> property,
                                                        T value)

Specified by:

setReverse in interface EdgeIteratorState

set

public <T extends Enum<?>> EdgeIteratorState set(EnumEncodedValue<T> property,
                                                 T fwd,
                                                 T bwd)

Specified by:

set in interface EdgeIteratorState

get

public String get(StringEncodedValue property)

Specified by:

get in interface EdgeIteratorState

set

public EdgeIteratorState set(StringEncodedValue property,
                             String value)

Specified by:

set in interface EdgeIteratorState

getReverse

public String getReverse(StringEncodedValue property)

Specified by:

getReverse in interface EdgeIteratorState

setReverse

public EdgeIteratorState setReverse(StringEncodedValue property,
                                    String value)

Specified by:

setReverse in interface EdgeIteratorState

set

public EdgeIteratorState set(StringEncodedValue property,
                             String fwd,
                             String bwd)

Specified by:

set in interface EdgeIteratorState

getName

public String getName()

Specified by:

getName in interface EdgeIteratorState

setName

public EdgeIteratorState setName(String name)

Specified by:

setName in interface EdgeIteratorState

setUnfavored

public void setUnfavored(boolean unfavored)

This method sets edge to unfavored status for routing from the start or to the stop location.

toString

public String toString()

Overrides:

toString in class Object

getOrigEdgeFirst

public int getOrigEdgeFirst()

Specified by:

getOrigEdgeFirst in interface EdgeIteratorState

Returns:

the edge id of the first original edge of the current edge. This is needed for shortcuts in edge-based contraction hierarchies and otherwise simply returns the id of the current edge.

getOrigEdgeLast

public int getOrigEdgeLast()

Specified by:

getOrigEdgeLast in interface EdgeIteratorState

See Also:

EdgeIteratorState.getOrigEdgeFirst()

detach

public EdgeIteratorState detach(boolean reverse)

Description copied from interface: EdgeIteratorState

Clones this EdgeIteratorState.

Specified by:

detach in interface EdgeIteratorState

Parameters:

reverse - if true a detached edgeState with reversed properties is created where base and adjacent nodes, flags and wayGeometry are in reversed order. See #162 for more details about why we need the reverse parameter.

copyPropertiesFrom

public EdgeIteratorState copyPropertiesFrom(EdgeIteratorState fromEdge)

Description copied from interface: EdgeIteratorState

Copies the properties of the specified edge into this edge. Does not change nodes!

Specified by:

copyPropertiesFrom in interface EdgeIteratorState

Returns:

the specified edge e

setReverseEdge

public void setReverseEdge(EdgeIteratorState reverseEdge)