| Overview | Group | Tree | Graph | Index | Concepts |
An instance of this class traverses a delta set of resource constraints (for example, the new direct predecessors of a given resource constraint).
See Also:
IlcActivity, IlcResource, IlcResourceConstraint, IlcResourceConstraintIteratorFilter
| Constructor and Destructor Summary | |
|---|---|
public | IlcResourceConstraintDeltaIterator(IlcResourceConstraint constraint, IlcResourceConstraintIteratorFilter filter) |
| Method Summary | |
|---|---|
public IlcActivity | getActivity() const |
public IlcResource | getResource() const |
public IlcBool | ok() const |
public IlcResourceConstraint | operator*() const |
public IlcResourceConstraintDeltaIterator & | operator++() |
| Constructor and Destructor Detail |
|---|
This constructor creates a delta iterator to traverse the elements of the
subset of resource constraints specified by the filter whose status has
changed with respect to constraint. The possible filters are
IlcDirectPredecessors, IlcDirectSuccessors, IlcPredecessors, IlcSuccessors. The possible statuses of a resource
constraint with respect to constraint are: unranked, direct
predecessor, direct successor, indirect predecessor, indirect successor.
Thus, with the filter IlcDirectSuccessors
or IlcDirectPredecessors, the delta iterator
traverses the set of new direct successors or direct predecessors of
constraint.
With the filter IlcSuccessors or
IlcPredecessors, the delta iterator
traverses the union of the set of new direct successors and the set of new
indirect successors or the union of the set of new direct predecessors and
the set of new indirect predecessors of constraint. This delta
set is a superset of the set of new successors or new predecessors of
constraint because any resource constraint whose status changes
from direct successor to indirect successor or from direct predecessor to
indirect predecessor will be traversed by this delta iterator even though it
was already a successor or predecessor.
This constructor can be used only when a resource precedence graph is
associated with the resource required by constraint. If the
resource is not associated with a precedence graph, an instance of
IloSolver::SolverErrorException is thrown.
| Method Detail |
|---|
This member function returns the activity involved in the resource constraint located at the current position of the invoking iterator.
This member function returns the resource involved in the resource constraint located at the current position of the invoking iterator.
This member function returns IlcTrue if the current position
of the iterator is a valid one. It returns IlcFalse if all the
constraints have been scanned by the iterator.
This operator accesses the instance of IlcResourceConstraint located at the current position of the
iterator. If the iterator is set past the end position, this operator
returns an empty handle.
This left-increment operator shifts the current position of the iterator.