ILOG CPLEX C++ API 9.0 Reference Manual

IloCplex::IncumbentCallbackI
MIPCallbackI::getBestObjValue, MIPCallbackI::getCutoff,
MIPCallbackI::getDirection, MIPCallbackI::getDirection,
MIPCallbackI::getIncumbentObjValue, MIPCallbackI::getIncumbentValue,
MIPCallbackI::getIncumbentValue, MIPCallbackI::getIncumbentValues,
MIPCallbackI::getIncumbentValues, MIPCallbackI::getMyThreadNum,
MIPCallbackI::getNcliques, MIPCallbackI::getNcovers,
MIPCallbackI::getNdisjunctiveCuts, MIPCallbackI::getNflowCovers,
MIPCallbackI::getNflowPaths, MIPCallbackI::getNfractionalCuts,
MIPCallbackI::getNGUBcovers, MIPCallbackI::getNimpliedBounds,
MIPCallbackI::getNiterations, MIPCallbackI::getNMIRs,
MIPCallbackI::getNnodes, MIPCallbackI::getNremainingNodes,
MIPCallbackI::getObjCoef, MIPCallbackI::getObjCoef,
MIPCallbackI::getObjCoefs, MIPCallbackI::getObjCoefs,
MIPCallbackI::getPriority, MIPCallbackI::getPriority,
MIPCallbackI::getUserThreads, MIPCallbackI::hasIncumbent
Inherited methods from IloCplex::CallbackI
CallbackI::abort, CallbackI::duplicateCallback, CallbackI::getEnv,
CallbackI::getModel, CallbackI::getNcols, CallbackI::getNQCs,
CallbackI::getNrows, CallbackI::main
Description
See Also
Methods
This callback is called whenever a new potential incumbent is found during branch &
cut searches. It allows you to analyze the proposed incumbent and optionally reject it. In
this case, CPLEX will continue the branch & cut search. This callback is thus typically
combined with a branch callback that instructs CPLEX how to branch on a node after it
has found a potential incumbent and thus considered the node solution to be integer
feasible.
IloCplex, IloCplex::Callback, IloCplex::CallbackI,
IloCplex::MIPCallbackI
protected NodeData * getNodeData()
This method retrieves the NodeData object that may have previously been assigned to
the current node by the user with method
IloCplex::BranchCallbackI::makeBranch. If no data object has been
assigned to the current node, 0 will be returned.
protected NodeId getNodeId()
This method returns the NodeId of the current node.
protected IloNum getObjValue()
This method returns the query objective value of the potential incumbent.
ILOG CPLEX C++ API 9.0 REFERENCE M ANUAL 160