org.ojalgo.optimisation.linear
Class LinearExpressionsModel

java.lang.Object
  org.ojalgo.optimisation.ModelEntity<org.ojalgo.optimisation.AbstractModel>
      org.ojalgo.optimisation.ExpressionsBasedModel<LinearExpressionsModel>
          org.ojalgo.optimisation.linear.LinearExpressionsModel

All Implemented Interfaces:

Comparable<org.ojalgo.optimisation.AbstractModel>, OptimisationModel

public final class LinearExpressionsModel
extends ExpressionsBasedModel<LinearExpressionsModel>

• No quadratic expressions whatsoever.
• Variables cannot have lower limits smaller than 0:
  • Unset lower limit on variables are assumed to be 0.
  • Setting the lower limit on a variable to something smaller than 0 will cause an exception.

  Author:

  apete

  Constructor Summary

  LinearExpressionsModel(Collection<? extends Variable> someVariables)
  

  LinearExpressionsModel(Variable[] someVariables)
  

  Method Summary

  static LinearExpressionsModel	convert(QuadraticExpressionsModel aQuadraticModel)
  LinearExpressionsModel	copy()
  OptimisationSolver	getDefaultSolver() No need to implement an OptimisationModel if there is not at least one matching OptimisationSolver.
  boolean	isMaximisation()
  boolean	isMinimisation()
  static LinearExpressionsModel	makeInstance(MathProgSysModel aModel)
  void	setMaximisation(boolean aFlag)
  void	setMinimisation(boolean aFlag)
  boolean	validateComposition() OptimisationModel is meant to be implemented in parallel with OptimisationSolver.

  Methods inherited from class org.ojalgo.optimisation.ExpressionsBasedModel

  addCompoundExpression, addEmptyCompoundExpression, addEmptyLinearExpression, addEmptyQuadraticExpression, addLinearExpression, addOffsetExpression, addOffsetExpressionWithException, addOffsetGroupExpression, addQuadraticExpression, addSimpleWeightExpression, addWeightExpression, addWeightExpression, addWeightGroupExpression, countExpressions, countVariables, getExpression, getExpressions, getIntegers, getObjectiveExpression, getValue, getVariable, getVariables, getVariableValues, indexOfVariable, isAnyExpressionQuadratic, isAnyVariableInteger, maximise, minimise, relax, resetObjectiveExpression, selectEqualityConstraintExpressions, selectEqualityConstraintVariables, selectLowerConstraintExpressions, selectLowerConstraintVariables, selectNegativeEqualityConstraintExpressions, selectNegativeLowerConstraintExpressions, selectNegativeUpperConstraintExpressions, selectNonZeroLowerConstraintVariables, selectPositiveEqualityConstraintExpressions, selectPositiveLowerConstraintExpressions, selectPositiveUpperConstraintExpressions, selectUpperConstraintExpressions, selectUpperConstraintVariables, setLowerLimitOnVariable, setUpperLimitOnVariable, toString, validateSolution, validateSolution

  Methods inherited from class org.ojalgo.optimisation.ModelEntity

  compareTo, equals, getName, hashCode

  Methods inherited from class java.lang.Object

  getClass, notify, notifyAll, wait, wait, wait

  Constructor Detail

  LinearExpressionsModel

  public LinearExpressionsModel(Collection<? extends Variable> someVariables)

  LinearExpressionsModel

  public LinearExpressionsModel(Variable[] someVariables)

  Method Detail

  convert

  public static final LinearExpressionsModel convert(QuadraticExpressionsModel aQuadraticModel)

  makeInstance

  public static LinearExpressionsModel makeInstance(MathProgSysModel aModel)

  copy

  public final LinearExpressionsModel copy()

  Specified by:

  copy in class ExpressionsBasedModel<LinearExpressionsModel>

  getDefaultSolver

  public OptimisationSolver getDefaultSolver()

  Description copied from interface: OptimisationModel

  No need to implement an OptimisationModel if there is not at least one matching OptimisationSolver.

  Specified by:

  getDefaultSolver in interface OptimisationModel

  Specified by:

  getDefaultSolver in class ExpressionsBasedModel<LinearExpressionsModel>

  validateComposition

  public boolean validateComposition()
                              throws ModelValidationException

  Description copied from interface: OptimisationModel

  OptimisationModel is meant to be implemented in parallel with OptimisationSolver. This method indicates if the model is built in a way the solver can handle or not.

  Specified by:

  validateComposition in interface OptimisationModel

  Overrides:

  validateComposition in class ExpressionsBasedModel<LinearExpressionsModel>

  Throws:

  ModelValidationException

  isMaximisation

  public final boolean isMaximisation()

  isMinimisation

  public final boolean isMinimisation()

  setMaximisation

  public final void setMaximisation(boolean aFlag)

  setMinimisation

  public final void setMinimisation(boolean aFlag)