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Public Member Functions | Protected Attributes
CbcPartialNodeInfo Class Reference

Holds information for recreating a subproblem by incremental change from the parent. More...

#include <CbcPartialNodeInfo.hpp>

Inheritance diagram for CbcPartialNodeInfo:
Collaboration diagram for CbcPartialNodeInfo:

List of all members.

Public Member Functions

virtual void applyToModel (CbcModel *model, CoinWarmStartBasis *&basis, CbcCountRowCut **addCuts, int &currentNumberCuts) const
 Modify model according to information at node.
virtual int applyBounds (int iColumn, double &lower, double &upper, int force)
 Just apply bounds to one variable - force means overwrite by lower,upper (1=>infeasible)
virtual CbcNodeInfobuildRowBasis (CoinWarmStartBasis &basis) const
 Builds up row basis backwards (until original model).
 CbcPartialNodeInfo ()
 CbcPartialNodeInfo (CbcNodeInfo *parent, CbcNode *owner, int numberChangedBounds, const int *variables, const double *boundChanges, const CoinWarmStartDiff *basisDiff)
 CbcPartialNodeInfo (const CbcPartialNodeInfo &)
 ~CbcPartialNodeInfo ()
virtual CbcNodeInfoclone () const
 Clone.
const CoinWarmStartDiff * basisDiff () const
 Basis diff information.
const int * variables () const
 Which variable (top bit if upper bound changing)
const double * newBounds () const
int numberChangedBounds () const
 Number of bound changes.

Protected Attributes

CoinWarmStartDiff * basisDiff_
 Basis diff information.
int * variables_
 Which variable (top bit if upper bound changing)
double * newBounds_
int numberChangedBounds_
 Number of bound changes.

Detailed Description

Holds information for recreating a subproblem by incremental change from the parent.

A CbcPartialNodeInfo object contains changes to the bounds and basis, and additional cuts, required to recreate a subproblem by modifying and augmenting the parent subproblem.

Definition at line 39 of file CbcPartialNodeInfo.hpp.


Constructor & Destructor Documentation

CbcPartialNodeInfo::CbcPartialNodeInfo ( )
CbcPartialNodeInfo::CbcPartialNodeInfo ( CbcNodeInfo parent,
CbcNode owner,
int  numberChangedBounds,
const int *  variables,
const double *  boundChanges,
const CoinWarmStartDiff *  basisDiff 
)
CbcPartialNodeInfo::CbcPartialNodeInfo ( const CbcPartialNodeInfo )
CbcPartialNodeInfo::~CbcPartialNodeInfo ( )

Member Function Documentation

virtual void CbcPartialNodeInfo::applyToModel ( CbcModel model,
CoinWarmStartBasis *&  basis,
CbcCountRowCut **  addCuts,
int &  currentNumberCuts 
) const [virtual]

Modify model according to information at node.

The routine modifies the model according to bound and basis change information at node and adds any cuts to the addCuts array.

Implements CbcNodeInfo.

virtual int CbcPartialNodeInfo::applyBounds ( int  iColumn,
double &  lower,
double &  upper,
int  force 
) [virtual]

Just apply bounds to one variable - force means overwrite by lower,upper (1=>infeasible)

Implements CbcNodeInfo.

virtual CbcNodeInfo* CbcPartialNodeInfo::buildRowBasis ( CoinWarmStartBasis &  basis) const [virtual]

Builds up row basis backwards (until original model).

Returns NULL or previous one to apply . Depends on Free being 0 and impossible for cuts

Implements CbcNodeInfo.

virtual CbcNodeInfo* CbcPartialNodeInfo::clone ( ) const [virtual]

Clone.

Implements CbcNodeInfo.

const CoinWarmStartDiff* CbcPartialNodeInfo::basisDiff ( ) const [inline]

Basis diff information.

Definition at line 77 of file CbcPartialNodeInfo.hpp.

const int* CbcPartialNodeInfo::variables ( ) const [inline]

Which variable (top bit if upper bound changing)

Definition at line 81 of file CbcPartialNodeInfo.hpp.

const double* CbcPartialNodeInfo::newBounds ( ) const [inline]

Definition at line 85 of file CbcPartialNodeInfo.hpp.

int CbcPartialNodeInfo::numberChangedBounds ( ) const [inline]

Number of bound changes.

Definition at line 89 of file CbcPartialNodeInfo.hpp.


Member Data Documentation

CoinWarmStartDiff* CbcPartialNodeInfo::basisDiff_ [protected]

Basis diff information.

Definition at line 96 of file CbcPartialNodeInfo.hpp.

Which variable (top bit if upper bound changing)

Definition at line 98 of file CbcPartialNodeInfo.hpp.

double* CbcPartialNodeInfo::newBounds_ [protected]

Definition at line 100 of file CbcPartialNodeInfo.hpp.

Number of bound changes.

Definition at line 102 of file CbcPartialNodeInfo.hpp.


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