AbstractBarIterationListener

Constructor Detail

• AbstractBarIterationListener

  public AbstractBarIterationListener()

Method Detail

• XPRSbarIterationEvent

  public final void XPRSbarIterationEvent​(XPRSprob prob,
                                          java.lang.Object vContext,
                                          IntHolder barrier_action)

  Description copied from interface: XPRSbarIterationListener
  Handle a BarIteration event. More details about BarIteration events can be found in the documentation of the corresponding C callback.

  Specified by:

  XPRSbarIterationEvent in interface  XPRSbarIterationListener

  Parameters:

  prob - The problem passed to the callback function, bariteration.

  vContext - The user-defined data passed as data when setting up the callback.

  barrier_action - Defines a return value controlling barrier:

  • <0: continue with the next iteration;
  • =0: let barrier decide (use default stopping criteria);
  • 1: barrier stops with status not defined;
  • 2: barrier stops with optimal status;
  • 3: barrier stops with dual infeasible status;
  • 4: barrier stops wih primal infeasible status.

  See Also:

  C documentation of XPRSaddcbbariteration()

• barIterationEvent

  public abstract int barIterationEvent​(XPRSprob prob)

  Invoke the callback.

  Parameters:

  prob - The problem on which the callback is invoked.

  Returns:

  the next action to perform (return 0 for the default). See the C reference manual for XPRSaddcbbariteration() for details about how values are interpreted.