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oracle.spatial.network.lod
Interface LinkCostCalculator

public interface LinkCostCalculator

This interface defines the method supported by a link cost calculator.

Since:

11gR1

Method Summary

double	getLinkCost(LogicalLink link, long fromNodeId) Computes the cost of the specified link.
boolean	requiresUserData() Returns true if calculating link cost requires user data information.

Method Detail

getLinkCost

double getLinkCost(LogicalLink link,
                   long fromNodeId)

Computes the cost of the specified link.

Parameters:

link - a standalone logical link

fromNodeId - ID of the node from which the network traverser is traveling from. It is used to indicate travel direction on the link. This ID must be either the start node or end node ID of the link.

Returns:

link cost

requiresUserData

boolean requiresUserData()

Returns true if calculating link cost requires user data information.

Returns:

true if calculating link cost requires user data information, false otherwise.

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