net.sourceforge.combean.mathprog.lp.model
Class LPModelSolverWithSequentialLoading

java.lang.Object
  net.sourceforge.combean.mathprog.lp.model.LPModelSolverWithSequentialLoading

All Implemented Interfaces:

LPModelSolver

Direct Known Subclasses:

MIPModelSolverWithSequentialLoading

public class LPModelSolverWithSequentialLoading
extends Object
implements LPModelSolver

Constructor Summary

LPModelSolverWithSequentialLoading()
constructor

Method Summary

int	getGlobalIndex(int localIdx, String offsetId, VectorOrientation orientation)
int	getGlobalIndex(LPModelIndex modelIndex, VectorOrientation orientation) Convert a model index into a global index
LPSolver	getLPSolver() Get the LP solver.
LPModel	getModel() Return the currently loaded model.
double	getSolution(LPModelIndex columnIndex) Return the solution value for a given variable.
void	loadModel(LPModel lpModel) Load a model into the previously set LP solver.
void	setLPSolver(LPSolver lpSolver) Set the solver to which the model shall be connected.
void	solve() Run the LP solver.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

LPModelSolverWithSequentialLoading

public LPModelSolverWithSequentialLoading()

constructor

Method Detail

setLPSolver

public void setLPSolver(LPSolver lpSolver)

Description copied from interface: LPModelSolver

Set the solver to which the model shall be connected.

Specified by:

setLPSolver in interface LPModelSolver

getLPSolver

public LPSolver getLPSolver()

Description copied from interface: LPModelSolver

Get the LP solver.

Specified by:

getLPSolver in interface LPModelSolver

Returns:

the LP solver.

getModel

public LPModel getModel()

Description copied from interface: LPModelSolver

Return the currently loaded model.

Specified by:

getModel in interface LPModelSolver

Returns:

the currently loaded model or null if no model has been loaded.

solve

public void solve()

Description copied from interface: LPModelSolver

Run the LP solver.

Specified by:

solve in interface LPModelSolver

getSolution

public double getSolution(LPModelIndex columnIndex)

Description copied from interface: LPModelSolver

Return the solution value for a given variable. May only be called after the LP solver has calculated a primal solution.

Specified by:

getSolution in interface LPModelSolver

Parameters:

columnIndex - the column for which the solution value shall be retrieved.

Returns:

the solution value.

getGlobalIndex

public int getGlobalIndex(LPModelIndex modelIndex,
                          VectorOrientation orientation)

Description copied from interface: LPModelSolver

Convert a model index into a global index

Specified by:

getGlobalIndex in interface LPModelSolver

Parameters:

modelIndex - the model index

orientation - orientation of the index (rowwise -> the index is a column index; columnwise -> the index is a row index)

Returns:

the global index in the LP

getGlobalIndex

public int getGlobalIndex(int localIdx,
                          String offsetId,
                          VectorOrientation orientation)

loadModel

public void loadModel(LPModel lpModel)

Description copied from interface: LPModelSolver

Load a model into the previously set LP solver.

Specified by:

loadModel in interface LPModelSolver

Parameters:

lpModel - the model to be loaded.

toString

public String toString()

Overrides:

toString in class Object