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An instance of the class IloCplex::BarrierCallbackI
represents a user-written callback in an application that uses an instance
of IloCplex to solve a problem by means of
the barrier optimizer. IloCplex calls the
user-written callback after each iteration during optimization with the
barrier method. If an
attempt is made to access information not available to an instance of this
class, an exception is thrown.
The constructor and methods of this class are for use in deriving
a user-written callback class and in implementing the main
method there.
For more information about the barrier optimizer, see the ILOG CPLEX User's Manual.
See Also:
ILOBARRIERCALLBACK0, IloCplex, IloCplex::Callback, IloCplex::CallbackI, IloCplex::ContinuousCallbackI
| Constructor Summary | |
|---|---|
protected | BarrierCallbackI() |
| Method Summary | |
|---|---|
protected IloNum | getDualObjValue() |
Inherited Methods from ContinuousCallbackI |
|---|
getDualInfeasibility, getInfeasibility, getNiterations, getObjValue, isDualFeasible, isFeasible |
Inherited Methods from CallbackI |
|---|
abort, duplicateCallback, getEnv, getModel, getNcols, getNQCs, getNrows, main |
| Constructor Detail |
|---|
This constructor creates a callback for use in an application of the barrier optimizer.
| Method Detail |
|---|
This method returns the current dual objective value of the solution
in the instance of IloCplex at the time the invoking
callback is executed.