CoinTreeNode Class Reference

A class from which the real tree nodes should be derived from. More...

#include <CoinSearchTree.hpp>

Collaboration diagram for CoinTreeNode:

Collaboration graph
[legend]
List of all members.

Public Member Functions

virtual ~CoinTreeNode ()
 A measure of fractionality, e.g., the fraction of unsatisfied integrality requirements.
int getDepth () const
double getQuality () const
double getTrueLB () const
BitVector128 getPreferred () const
void setDepth (int d)
void setQuality (double q)
void setTrueLB (double tlb)
void setPreferred (BitVector128 p)

Protected Member Functions

 CoinTreeNode ()
 CoinTreeNode (int d, double q=-COIN_DBL_MAX, double tlb=-COIN_DBL_MAX, BitVector128 p=BitVector128())
 CoinTreeNode (const CoinTreeNode &x)
CoinTreeNodeoperator= (const CoinTreeNode &x)

Private Attributes

int depth_
 The depth of the node in the tree.
double quality_
 Some quality for the node.
double true_lower_bound_
 A true lower bound on the node.
BitVector128 preferred_

Detailed Description

A class from which the real tree nodes should be derived from.

Some of the data that undoubtedly exist in the real tree node is replicated here for fast access. This class is used in the various comparison functions.

Definition at line 35 of file CoinSearchTree.hpp.


Constructor & Destructor Documentation

CoinTreeNode::CoinTreeNode (  )  [inline, protected]

Definition at line 37 of file CoinSearchTree.hpp.

CoinTreeNode::CoinTreeNode ( int  d,
double  q = -COIN_DBL_MAX,
double  tlb = -COIN_DBL_MAX,
BitVector128  p = BitVector128() 
) [inline, protected]

Definition at line 42 of file CoinSearchTree.hpp.

CoinTreeNode::CoinTreeNode ( const CoinTreeNode x  )  [inline, protected]

Definition at line 50 of file CoinSearchTree.hpp.

virtual CoinTreeNode::~CoinTreeNode (  )  [inline, virtual]

A measure of fractionality, e.g., the fraction of unsatisfied integrality requirements.

Definition at line 80 of file CoinSearchTree.hpp.


Member Function Documentation

CoinTreeNode& CoinTreeNode::operator= ( const CoinTreeNode x  )  [inline, protected]

Definition at line 55 of file CoinSearchTree.hpp.

References depth_, preferred_, quality_, and true_lower_bound_.

int CoinTreeNode::getDepth (  )  const [inline]

Definition at line 82 of file CoinSearchTree.hpp.

References depth_.

Referenced by CoinSearchTreeCompareBreadth::operator()(), and CoinSearchTreeCompareDepth::operator()().

double CoinTreeNode::getQuality (  )  const [inline]

Definition at line 83 of file CoinSearchTree.hpp.

References quality_.

Referenced by CoinSearchTreeManager::bestQuality(), CoinSearchTreeCompareBest::operator()(), CoinSearchTreeCompareDepth::operator()(), and CoinSearchTreeComparePreferred::operator()().

double CoinTreeNode::getTrueLB (  )  const [inline]

Definition at line 84 of file CoinSearchTree.hpp.

References true_lower_bound_.

BitVector128 CoinTreeNode::getPreferred (  )  const [inline]

Definition at line 85 of file CoinSearchTree.hpp.

References preferred_.

Referenced by CoinSearchTreeComparePreferred::operator()().

void CoinTreeNode::setDepth ( int  d  )  [inline]

Definition at line 87 of file CoinSearchTree.hpp.

References depth_.

void CoinTreeNode::setQuality ( double  q  )  [inline]

Definition at line 88 of file CoinSearchTree.hpp.

References quality_.

void CoinTreeNode::setTrueLB ( double  tlb  )  [inline]

Definition at line 89 of file CoinSearchTree.hpp.

References true_lower_bound_.

void CoinTreeNode::setPreferred ( BitVector128  p  )  [inline]

Definition at line 90 of file CoinSearchTree.hpp.

References preferred_.


Member Data Documentation

int CoinTreeNode::depth_ [private]

The depth of the node in the tree.

Definition at line 65 of file CoinSearchTree.hpp.

Referenced by getDepth(), operator=(), and setDepth().

double CoinTreeNode::quality_ [private]

Some quality for the node.

For normal branch-and-cut problems the LP relaxation value will do just fine. It is probably an OK approximation even if column generation is done.

Definition at line 69 of file CoinSearchTree.hpp.

Referenced by getQuality(), operator=(), and setQuality().

double CoinTreeNode::true_lower_bound_ [private]

A true lower bound on the node.

May be -infinity. For normal branch-and-cut problems the LP relaxation value is OK. It is different when column generation is done.

Definition at line 73 of file CoinSearchTree.hpp.

Referenced by getTrueLB(), operator=(), and setTrueLB().

BitVector128 CoinTreeNode::preferred_ [private]

Definition at line 75 of file CoinSearchTree.hpp.

Referenced by getPreferred(), operator=(), and setPreferred().


The documentation for this class was generated from the following file:
Generated on Thu May 15 21:54:57 2008 by  doxygen 1.4.7