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Public Member Functions | Protected Attributes | List of all members
OsiSimpleInteger Class Reference

Define a single integer class. More...

`#include <OsiBranchingObject.hpp>`

Inheritance diagram for OsiSimpleInteger:
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Collaboration diagram for OsiSimpleInteger:
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## Public Member Functions
| OsiSimpleInteger ()
| Default Constructor. More...
| OsiSimpleInteger (const OsiSolverInterface *solver, int iColumn)
| Useful constructor - passed solver index. More...
| OsiSimpleInteger (int iColumn, double lower, double upper)
| Useful constructor - passed solver index and original bounds. More...
| OsiSimpleInteger (const OsiSimpleInteger &)
| Copy constructor. More...
virtual OsiObject * | clone () const
| Clone. More...
OsiSimpleInteger & | operator= (const OsiSimpleInteger &rhs)
| Assignment operator. More...
virtual | ~OsiSimpleInteger ()
| Destructor. More...
virtual double | infeasibility (const OsiBranchingInformation *info, int &whichWay) const
| Infeasibility - large is 0.5. More...
virtual double | feasibleRegion (OsiSolverInterface *solver, const OsiBranchingInformation *info) const
| Set bounds to fix the variable at the current (integer) value. More...
virtual OsiBranchingObject * | createBranch (OsiSolverInterface *solver, const OsiBranchingInformation *info, int way) const
| Creates a branching object. More...
void | setColumnNumber (int value)
| Set solver column number. More...
virtual int | columnNumber () const
| Column number if single column object -1 otherwise, so returns >= 0 Used by heuristics. More...
double | originalLowerBound () const
| Original bounds. More...
void | setOriginalLowerBound (double value)
double | originalUpperBound () const
void | setOriginalUpperBound (double value)
virtual void | resetBounds (const OsiSolverInterface *solver)
| Reset variable bounds to their original values. More...
virtual void | resetSequenceEtc (int numberColumns, const int *originalColumns)
| Change column numbers after preprocessing. More...
virtual double | upEstimate () const
| Return "up" estimate (default 1.0e-5) More...
virtual double | downEstimate () const
| Return "down" estimate (default 1.0e-5) More...
virtual bool | canHandleShadowPrices () const
| Return true if knows how to deal with Pseudo Shadow Prices. More...
Public Member Functions inherited from OsiObject2
| OsiObject2 ()
| Default Constructor. More...
| OsiObject2 (const OsiObject2 &)
| Copy constructor. More...
OsiObject2 & | operator= (const OsiObject2 &rhs)
| Assignment operator. More...
virtual | ~OsiObject2 ()
| Destructor. More...
void | setPreferredWay (int value)
| Set preferred way of branching - -1 off, 0 down, 1 up (for 2-way) More...
virtual int | preferredWay () const
| Get preferred way of branching - -1 off, 0 down, 1 up (for 2-way) More...
Public Member Functions inherited from OsiObject
| OsiObject ()
| Default Constructor. More...
| OsiObject (const OsiObject &)
| Copy constructor. More...
OsiObject & | operator= (const OsiObject &rhs)
| Assignment operator. More...
virtual | ~OsiObject ()
| Destructor. More...
double | infeasibility (const OsiSolverInterface *solver, int &whichWay) const
| Infeasibility of the object. More...
virtual double | checkInfeasibility (const OsiBranchingInformation *info) const
virtual double | feasibleRegion (OsiSolverInterface *solver) const
| For the variable(s) referenced by the object, look at the current solution and set bounds to match the solution. More...
virtual bool | canDoHeuristics () const
| Return true if object can take part in normal heuristics. More...
virtual bool | canMoveToNearest () const
| Return true if object can take part in move to nearest heuristic. More...
int | priority () const
| Return Priority - note 1 is highest priority. More...
void | setPriority (int priority)
| Set priority. More...
virtual bool | boundBranch () const
| Return true if branch should only bound variables. More...
int | numberWays () const
| Return maximum number of ways branch may have. More...
void | setNumberWays (int numberWays)
| Set maximum number of ways branch may have. More...
void | setWhichWay (int way)
| Return preferred way to branch. More...
int | whichWay () const
| Return current preferred way to branch. More...
double | infeasibility () const
| Return infeasibility. More...
virtual void | updateBefore (const OsiObject *)
| Updates stuff like pseudocosts before threads. More...
virtual void | updateAfter (const OsiObject *, const OsiObject *)
| Updates stuff like pseudocosts after threads finished. More...

## Protected Attributes
double | originalLower_
| data Original lower bound More...
double | originalUpper_
| Original upper bound. More...
int | columnNumber_
| Column number in solver. More...
Protected Attributes inherited from OsiObject2
int | preferredWay_
| Preferred way of branching - -1 off, 0 down, 1 up (for 2-way) More...
double | otherInfeasibility_
| "Infeasibility" on other way More...
Protected Attributes inherited from OsiObject
double | infeasibility_
| data More...
short | whichWay_
| Computed preferred way to branch. More...
short | numberWays_
| Maximum number of ways on branch. More...
int | priority_
| Priority. More...

## Detailed Description

Define a single integer class.

Definition at line 511 of file OsiBranchingObject.hpp.

## Constructor & Destructor Documentation

OsiSimpleInteger::OsiSimpleInteger | ( |  | ) |

Default Constructor.

OsiSimpleInteger::OsiSimpleInteger | ( | const OsiSolverInterface * | solver,
|  | int | iColumn
| ) |  |

Useful constructor - passed solver index.

OsiSimpleInteger::OsiSimpleInteger | ( | int | iColumn,
|  | double | lower,
|  | double | upper
| ) |  |

Useful constructor - passed solver index and original bounds.

OsiSimpleInteger::OsiSimpleInteger | ( | const OsiSimpleInteger & |  | ) |

Copy constructor.

virtual OsiSimpleInteger::~OsiSimpleInteger | ( |  | ) |
| virtual

Destructor.

## Member Function Documentation

virtual OsiObject* OsiSimpleInteger::clone | ( |  | ) | const
| virtual

Clone.

Implements OsiObject.

OsiSimpleInteger& OsiSimpleInteger::operator= | ( | const OsiSimpleInteger & | rhs | ) |

Assignment operator.

virtual double OsiSimpleInteger::infeasibility | ( | const OsiBranchingInformation * | info,
|  | int & | whichWay
| ) |  | const
| virtual

Infeasibility - large is 0.5.

Implements OsiObject.

virtual double OsiSimpleInteger::feasibleRegion | ( | OsiSolverInterface * | solver,
|  | const OsiBranchingInformation * | info
| ) |  | const
| virtual

Set bounds to fix the variable at the current (integer) value.

Given an integer value, set the lower and upper bounds to fix the variable. Returns amount it had to move variable.

Implements OsiObject.

virtual OsiBranchingObject* OsiSimpleInteger::createBranch | ( | OsiSolverInterface * | solver,
|  | const OsiBranchingInformation * | info,
|  | int | way
| ) |  | const
| virtual

Creates a branching object.

The preferred direction is set by `way`, 0 for down, 1 for up.

Reimplemented from OsiObject.

void OsiSimpleInteger::setColumnNumber | ( | int | value | ) |
| inline

Set solver column number.

Definition at line 556 of file OsiBranchingObject.hpp.

virtual int OsiSimpleInteger::columnNumber | ( |  | ) | const
| virtual

Column number if single column object -1 otherwise, so returns >= 0 Used by heuristics.

Reimplemented from OsiObject.

double OsiSimpleInteger::originalLowerBound | ( |  | ) | const
| inline

Original bounds.

Definition at line 566 of file OsiBranchingObject.hpp.

void OsiSimpleInteger::setOriginalLowerBound | ( | double | value | ) |
| inline

Definition at line 568 of file OsiBranchingObject.hpp.

double OsiSimpleInteger::originalUpperBound | ( |  | ) | const
| inline

Definition at line 570 of file OsiBranchingObject.hpp.

void OsiSimpleInteger::setOriginalUpperBound | ( | double | value | ) |
| inline

Definition at line 572 of file OsiBranchingObject.hpp.

virtual void OsiSimpleInteger::resetBounds | ( | const OsiSolverInterface * | solver | ) |
| virtual

Reset variable bounds to their original values.

Bounds may be tightened, so it may be good to be able to reset them to their original values.

Reimplemented from OsiObject.

virtual void OsiSimpleInteger::resetSequenceEtc | ( | int | numberColumns,
|  | const int * | originalColumns
| ) |  |
| virtual

Change column numbers after preprocessing.

Reimplemented from OsiObject.

virtual double OsiSimpleInteger::upEstimate | ( |  | ) | const
| virtual

Return "up" estimate (default 1.0e-5)

Reimplemented from OsiObject.

virtual double OsiSimpleInteger::downEstimate | ( |  | ) | const
| virtual

Return "down" estimate (default 1.0e-5)

Reimplemented from OsiObject.

virtual bool OsiSimpleInteger::canHandleShadowPrices | ( |  | ) | const
| inline virtual

Return true if knows how to deal with Pseudo Shadow Prices.

Reimplemented from OsiObject.

Definition at line 588 of file OsiBranchingObject.hpp.

## Member Data Documentation

double OsiSimpleInteger::originalLower_
| protected

data Original lower bound

Definition at line 593 of file OsiBranchingObject.hpp.

double OsiSimpleInteger::originalUpper_
| protected

Original upper bound.

Definition at line 595 of file OsiBranchingObject.hpp.

int OsiSimpleInteger::columnNumber_
| protected

Column number in solver.

Definition at line 597 of file OsiBranchingObject.hpp.

The documentation for this class was generated from the following file:

- /tmp/CHiPPS-Blis-0.94.3/Osi/src/Osi/OsiBranchingObject.hpp