net.sourceforge.combean.graph.alg.lp
Class LPModelSolverAsFixedDoubleEdgeMap

java.lang.Object
  net.sourceforge.combean.graph.alg.lp.LPModelSolverAsFixedDoubleEdgeMap

All Implemented Interfaces:

FixedDoubleEdgeMap

public class LPModelSolverAsFixedDoubleEdgeMap
extends Object
implements FixedDoubleEdgeMap

Wrap a LP model modelSolver as fixed double edge map, which returns the primal solution value for each edge. This is useful for LPs where a part of the variables correspond to settings for the edges in a graph.

Constructor Summary

LPModelSolverAsFixedDoubleEdgeMap(LPModelSolver solver, GlobalNumberedEdgesGraphProp numberedEdges, String offsetId)
Constructor

Method Summary

double

getDouble(Edge e) Return the value for a given edge.

Methods inherited from class java.lang.Object

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

Constructor Detail

LPModelSolverAsFixedDoubleEdgeMap

public LPModelSolverAsFixedDoubleEdgeMap(LPModelSolver solver,
                                         GlobalNumberedEdgesGraphProp numberedEdges,
                                         String offsetId)

Constructor

Parameters:

solver - the LP model modelSolver to be wrapped. The LP model must contain the edges of the graph for which the edge map is accessed.

numberedEdges - the graph to which the edge map refers.

offsetId - the offset identifier for the columns in the LP model which correspond to the edges in the given graph.

Method Detail

getDouble

public double getDouble(Edge e)

Description copied from interface: FixedDoubleEdgeMap

Return the value for a given edge.

Specified by:

getDouble in interface FixedDoubleEdgeMap

Parameters:

e - the edge for which the value shall be returned.

Returns:

the value stored in the map for e.