CbcPartialNodeInfo Class Reference

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

#include <CbcNode.hpp>

Inheritance diagram for CbcPartialNodeInfo:
CbcNodeInfo

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.

Private Member Functions

CbcPartialNodeInfooperator= (const CbcPartialNodeInfo &rhs)
 Illegal Assignment operator.

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 390 of file CbcNode.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 428 of file CbcNode.hpp.

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

Which variable (top bit if upper bound changing).

Definition at line 431 of file CbcNode.hpp.

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

Definition at line 434 of file CbcNode.hpp.

int CbcPartialNodeInfo::numberChangedBounds (  )  const [inline]

Number of bound changes.

Definition at line 437 of file CbcNode.hpp.

CbcPartialNodeInfo& CbcPartialNodeInfo::operator= ( const CbcPartialNodeInfo rhs  )  [private]

Illegal Assignment operator.

Reimplemented from CbcNodeInfo.


Member Data Documentation

CoinWarmStartDiff* CbcPartialNodeInfo::basisDiff_ [protected]

Basis diff information.

Definition at line 443 of file CbcNode.hpp.

Which variable (top bit if upper bound changing).

Definition at line 445 of file CbcNode.hpp.

double* CbcPartialNodeInfo::newBounds_ [protected]

Definition at line 447 of file CbcNode.hpp.

Number of bound changes.

Definition at line 449 of file CbcNode.hpp.


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

Generated on Tue Nov 24 00:15:27 2009 by  doxygen 1.6.1