CbcFixingBranchingObject Class Reference

General Branching Object class. More...

#include <CbcFollowOn.hpp>

Inheritance diagram for CbcFixingBranchingObject:

Collaboration diagram for CbcFixingBranchingObject:

Public Member Functions
	CbcFixingBranchingObject ()
	CbcFixingBranchingObject (CbcModel *model, int way, int numberOnDownSide, const int *down, int numberOnUpSide, const int *up)
	CbcFixingBranchingObject (const CbcFixingBranchingObject &)
CbcFixingBranchingObject &	operator= (const CbcFixingBranchingObject &rhs)
virtual CbcBranchingObject *	clone () const
	Clone. More...
virtual	~CbcFixingBranchingObject ()
virtual double	branch ()
	Does next branch and updates state. More...
virtual void	print ()
	Print something about branch - only if log level high. More...
virtual CbcBranchObjType	type () const
	Return the type (an integer identifier) of this. More...
virtual int	compareOriginalObject (const CbcBranchingObject *brObj) const
	Compare the original object of this with the original object of brObj. More...
virtual CbcRangeCompare	compareBranchingObject (const CbcBranchingObject *brObj, const bool replaceIfOverlap=false)
	Compare the this with brObj. More...
virtual double	branch ()=0
	Execute the actions required to branch, as specified by the current state of the branching object, and advance the object's state. More...
virtual double	branch (OsiSolverInterface *)
	Execute the actions required to branch, as specified by the current state of the branching object, and advance the object's state. More...
virtual void	print () const
	Print something about branch - only if log level high. More...
Public Member Functions inherited from CbcBranchingObject
	CbcBranchingObject ()
	Default Constructor. More...
	CbcBranchingObject (CbcModel *model, int variable, int way, double value)
	Constructor. More...
	CbcBranchingObject (const CbcBranchingObject &)
	Copy constructor. More...
CbcBranchingObject &	operator= (const CbcBranchingObject &rhs)
	Assignment operator. More...
virtual	~CbcBranchingObject ()
	Destructor. More...
virtual int	fillStrongInfo (CbcStrongInfo &)
	Some branchingObjects may claim to be able to skip strong branching. More...
void	resetNumberBranchesLeft ()
	Reset number of branches left to original. More...
void	setNumberBranches (int value)
	Set number of branches to do. More...
virtual double	branch (OsiSolverInterface *)
	Execute the actions required to branch, as specified by the current state of the branching object, and advance the object's state. More...
virtual void	fix (OsiSolverInterface *, double *, double *, int) const
	Update bounds in solver as in 'branch' and update given bounds. More...
virtual bool	tighten (OsiSolverInterface *)
	Change (tighten) bounds in object to reflect bounds in solver. More...
virtual void	previousBranch ()
	Reset every information so that the branching object appears to point to the previous child. More...
virtual void	print () const
	Print something about branch - only if log level high. More...
int	variable () const
	Index identifying the associated CbcObject within its class. More...
int	way () const
	Get the state of the branching object. More...
void	way (int way)
	Set the state of the branching object. More...
void	setModel (CbcModel *model)
	update model More...
CbcModel *	model () const
	Return model. More...
CbcObject *	object () const
	Return pointer back to object which created. More...
void	setOriginalObject (CbcObject *object)
	Set pointer back to object which created. More...

Private Attributes
int	numberDown_
	data Number on down list More...
int	numberUp_
	Number on up list. More...
int *	downList_
	downList - variables to fix to lb on down branch More...
int *	upList_
	upList - variables to fix to lb on up branch More...

Additional Inherited Members
Protected Attributes inherited from CbcBranchingObject
CbcModel *	model_
	The model that owns this branching object. More...
CbcObject *	originalCbcObject_
	Pointer back to object which created. More...
int	variable_
	Branching variable (0 is first integer) More...
int	way_
	The state of the branching object. More...

Detailed Description

General Branching Object class.

Each way fixes some variables to lower bound

Definition at line 73 of file CbcFollowOn.hpp.

Constructor & Destructor Documentation

CbcFixingBranchingObject() [1/3]

CbcFixingBranchingObject::CbcFixingBranchingObject

(

)

CbcFixingBranchingObject() [2/3]

CbcFixingBranchingObject::CbcFixingBranchingObject	(	CbcModel *	model,
		int	way,
		int	numberOnDownSide,
		const int *	down,
		int	numberOnUpSide,
		const int *	up
	)

CbcFixingBranchingObject() [3/3]

CbcFixingBranchingObject::CbcFixingBranchingObject

(

const CbcFixingBranchingObject &

)

~CbcFixingBranchingObject()

virtual CbcFixingBranchingObject::~CbcFixingBranchingObject ( )

virtual

Member Function Documentation

operator=()

CbcFixingBranchingObject& CbcFixingBranchingObject::operator=

(

const CbcFixingBranchingObject &

rhs

)

clone()

virtual CbcBranchingObject* CbcFixingBranchingObject::clone ( ) const

virtual

Clone.

Implements CbcBranchingObject.

branch() [1/3]

virtual double CbcFixingBranchingObject::branch ( )

virtual

Does next branch and updates state.

Implements CbcBranchingObject.

print() [1/2]

virtual void CbcFixingBranchingObject::print ( )

virtual

Print something about branch - only if log level high.

type()

virtual CbcBranchObjType CbcFixingBranchingObject::type ( ) const

inlinevirtual

Return the type (an integer identifier) of this.

Implements CbcBranchingObject.

Definition at line 115 of file CbcFollowOn.hpp.

compareOriginalObject()

virtual int CbcFixingBranchingObject::compareOriginalObject ( const CbcBranchingObject *  brObj ) const

virtual

Compare the original object of this with the original object of brObj.

Assumes that there is an ordering of the original objects. This method should be invoked only if this and brObj are of the same type. Return negative/0/positive depending on whether this is smaller/same/larger than the argument.

Reimplemented from CbcBranchingObject.

compareBranchingObject()

virtual CbcRangeCompare CbcFixingBranchingObject::compareBranchingObject ( const CbcBranchingObject *  brObj, const bool  replaceIfOverlap = false  )

virtual

Compare the this with brObj.

this and brObj must be os the same type and must have the same original object, but they may have different feasible regions. Return the appropriate CbcRangeCompare value (first argument being the sub/superset if that's the case). In case of overlap (and if replaceIfOverlap is true) replace the current branching object with one whose feasible region is the overlap.

Implements CbcBranchingObject.

branch() [2/3]

virtual double CbcBranchingObject::branch

Execute the actions required to branch, as specified by the current state of the branching object, and advance the object's state.

Mainly for diagnostics, whether it is true branch or strong branching is also passed. Returns change in guessed objective on next branch

branch() [3/3]

virtual double CbcBranchingObject::branch

inline

Execute the actions required to branch, as specified by the current state of the branching object, and advance the object's state.

Mainly for diagnostics, whether it is true branch or strong branching is also passed. Returns change in guessed objective on next branch

Definition at line 105 of file CbcBranchingObject.hpp.

print() [2/2]

virtual void CbcBranchingObject::print

inline

Print something about branch - only if log level high.

Definition at line 132 of file CbcBranchingObject.hpp.

Member Data Documentation

numberDown_

int CbcFixingBranchingObject::numberDown_

private

data Number on down list

Definition at line 142 of file CbcFollowOn.hpp.

numberUp_

int CbcFixingBranchingObject::numberUp_

private

Number on up list.

Definition at line 144 of file CbcFollowOn.hpp.

downList_

int* CbcFixingBranchingObject::downList_

private

downList - variables to fix to lb on down branch

Definition at line 146 of file CbcFollowOn.hpp.

upList_

int* CbcFixingBranchingObject::upList_

private

upList - variables to fix to lb on up branch

Definition at line 148 of file CbcFollowOn.hpp.

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

• /home/ted/Projects/Cbc/Cbc/src/CbcFollowOn.hpp