Module ojalgo

Package org.ojalgo.optimisation.linear

Class LinearSolver.NewIntegration

java.lang.Object

org.ojalgo.optimisation.ExpressionsBasedModel.Integration<SimplexSolver>

org.ojalgo.optimisation.linear.LinearSolver.NewIntegration

All Implemented Interfaces:

Optimisation, Optimisation.Integration<ExpressionsBasedModel,SimplexSolver>

Enclosing class:

LinearSolver

static final class LinearSolver.NewIntegration
extends ExpressionsBasedModel.Integration<SimplexSolver>

An integration to a new/alternative/experimental LP-solver. That solver is intended to replace the current solver, but is not yet ready to do that. You're welcome to try it - just add this integration by calling ExpressionsBasedModel#addIntegration(ExpressionsBasedModel.Integration).

Nested Class Summary

Nested classes/interfaces inherited from interface org.ojalgo.optimisation.Optimisation

Optimisation.Constraint, Optimisation.ConstraintType, Optimisation.Integration<M extends Optimisation.Model,S extends Optimisation.Solver>, Optimisation.Model, Optimisation.Objective, Optimisation.Options, Optimisation.ProblemStructure, Optimisation.Result, Optimisation.Sense, Optimisation.Solver, Optimisation.State

Constructor Summary

Constructors

Constructor	Description
NewIntegration()

Method Summary

Modifier and Type	Method	Description
SimplexSolver	build(ExpressionsBasedModel model)	An integration must be able to instantiate a solver that can handle (any) model instance.
protected int	getIndexInSolver(ExpressionsBasedModel model, Variable variable)
boolean	isCapable(ExpressionsBasedModel model)
Optimisation.Result	toModelState(Optimisation.Result solverState, ExpressionsBasedModel model)	Convert solver state to model state.
Optimisation.Result	toSolverState(Optimisation.Result modelState, ExpressionsBasedModel model)	Convert model state to solver state.

Methods inherited from class org.ojalgo.optimisation.ExpressionsBasedModel.Integration

extractSolverState, isSwitch, newValidator, setSwitch, withCapabilityPredicate, withOptionsModifier

Methods inherited from class java.lang.Object

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

Constructor Detail

NewIntegration

NewIntegration()

Method Detail

build

public SimplexSolver build(ExpressionsBasedModel model)

Description copied from interface: Optimisation.Integration

An integration must be able to instantiate a solver that can handle (any) model instance.

isCapable

public boolean isCapable(ExpressionsBasedModel model)

Returns:

true if this solver (integration) can handle the input model

toModelState

public Optimisation.Result toModelState(Optimisation.Result solverState,
                                        ExpressionsBasedModel model)

Description copied from interface: Optimisation.Integration

Convert solver state to model state. Transforming the solution (set of variable values) is the main concern. Adjusting the objective function value (if needed) is best handled elsewhere, and is not required here.

The required behaviour here depends on how Optimisation.Integration.build(Optimisation.Model) is implemented, and is the reverse mapping of Optimisation.Integration.toSolverState(Optimisation.Result, Optimisation.Model).

Specified by:

toModelState in interface Optimisation.Integration<ExpressionsBasedModel,SimplexSolver>

Overrides:

toModelState in class ExpressionsBasedModel.Integration<SimplexSolver>

toSolverState

public Optimisation.Result toSolverState(Optimisation.Result modelState,
                                         ExpressionsBasedModel model)

Description copied from interface: Optimisation.Integration

Convert model state to solver state. Transforming the solution (set of variable values) is the main concern. Adjusting the objective function value (if needed) is best handled elsewhere, and is not required here.

The required behaviour here depends on how Optimisation.Integration.build(Optimisation.Model) is implemented, and is the reverse mapping of Optimisation.Integration.toModelState(Result, Optimisation.Model).

Specified by:

toSolverState in interface Optimisation.Integration<ExpressionsBasedModel,SimplexSolver>

Overrides:

toSolverState in class ExpressionsBasedModel.Integration<SimplexSolver>

getIndexInSolver

protected int getIndexInSolver(ExpressionsBasedModel model,
                               Variable variable)

Overrides:

getIndexInSolver in class ExpressionsBasedModel.Integration<SimplexSolver>

Returns:

The index with which one can reference parameters related to this variable in the solver.