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oracle.spatial.network.lod
Class DummyCostFunction

java.lang.Object
oracle.spatial.network.lod.DummyCostFunction

All Implemented Interfaces:

HeuristicCostFunction

public class DummyCostFunction

extends java.lang.Object

implements HeuristicCostFunction

The A* cost function implemented in this class always returns 0.

Since:

Oracle Database 11g Release 2 (11.2)

Constructor Summary

DummyCostFunction(double cost)

Method Summary

double	getHeuristicCost(HeavyPointOnNet currentPoint, HeavyPointOnNet goalPoint) Returns the heuristic cost from the current point to the goal point.
int[]	getUserDataCategories() Returns the required user data categories.

Methods inherited from class java.lang.Object

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

Constructor Detail

DummyCostFunction

public DummyCostFunction(double cost)

Method Detail

getHeuristicCost

public double getHeuristicCost(HeavyPointOnNet currentPoint,
                               HeavyPointOnNet goalPoint)

Description copied from interface: HeuristicCostFunction

Returns the heuristic cost from the current point to the goal point.

Specified by:

getHeuristicCost in interface HeuristicCostFunction

Parameters:

currentPoint - current point

goalPoint - goal point

Returns:

emtimated cost from current node to goal node)

getUserDataCategories

public int[] getUserDataCategories()

Description copied from interface: HeuristicCostFunction

Returns the required user data categories.

Specified by:

getUserDataCategories in interface HeuristicCostFunction

Returns:

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