structuralConstraintDiGraph_inl.h

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 *       - Pierre-Henri WUILLEMIN(_at_LIP6)                                 *
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#pragma once
 

#ifndef DOXYGEN_SHOULD_SKIP_THIS
 
namespace gum {
 
  namespace learning {

    INLINE void StructuralConstraintDiGraph::setGraphAlone(const DiGraph& graph) {
      _DiGraph_graph_ = graph;
    }

    INLINE bool StructuralConstraintDiGraph::checkArcAdditionAlone(NodeId x, NodeId y) const {
      return _DiGraph_graph_.existsNode(x) && _DiGraph_graph_.existsNode(y)
          && !_DiGraph_graph_.existsArc(x, y);
    }

    INLINE bool StructuralConstraintDiGraph::checkArcDeletionAlone(NodeId x, NodeId y) const {
      return _DiGraph_graph_.existsArc(x, y);
    }

    INLINE bool StructuralConstraintDiGraph::checkArcReversalAlone(NodeId x, NodeId y) const {
      return _DiGraph_graph_.existsArc(x, y) && !_DiGraph_graph_.existsArc(y, x);
    }

    INLINE bool
        StructuralConstraintDiGraph::checkModificationAlone(const ArcAddition& change) const {
      return checkArcAdditionAlone(change.node1(), change.node2());
    }

    INLINE bool
        StructuralConstraintDiGraph::checkModificationAlone(const ArcDeletion& change) const {
      return checkArcDeletionAlone(change.node1(), change.node2());
    }

    INLINE bool
        StructuralConstraintDiGraph::checkModificationAlone(const ArcReversal& change) const {
      return checkArcReversalAlone(change.node1(), change.node2());
    }

    INLINE bool
        StructuralConstraintDiGraph::checkModificationAlone(const GraphChange& change) const {
      switch (change.type()) {
        case GraphChangeType::ARC_ADDITION :
          return checkArcAdditionAlone(change.node1(), change.node2());
 
        case GraphChangeType::ARC_DELETION :
          return checkArcDeletionAlone(change.node1(), change.node2());
 
        case GraphChangeType::ARC_REVERSAL :
          return checkArcReversalAlone(change.node1(), change.node2());
 
        default :
          GUM_ERROR(OperationNotAllowed,
                    "edge modifications are not "
                    "supported by StructuralConstraintDiGraph");
      }
    }

    INLINE void StructuralConstraintDiGraph::modifyGraphAlone(const ArcAddition& change) {
      _DiGraph_graph_.addArc(change.node1(), change.node2());
    }

    INLINE void StructuralConstraintDiGraph::modifyGraphAlone(const ArcDeletion& change) {
      _DiGraph_graph_.eraseArc(Arc(change.node1(), change.node2()));
    }

    INLINE void StructuralConstraintDiGraph::modifyGraphAlone(const ArcReversal& change) {
      _DiGraph_graph_.eraseArc(Arc(change.node1(), change.node2()));
      _DiGraph_graph_.addArc(change.node2(), change.node1());
    }

    INLINE void StructuralConstraintDiGraph::modifyGraphAlone(const GraphChange& change) {
      switch (change.type()) {
        case GraphChangeType::ARC_ADDITION :
          modifyGraphAlone(reinterpret_cast< const ArcAddition& >(change));
          break;
 
        case GraphChangeType::ARC_DELETION :
          modifyGraphAlone(reinterpret_cast< const ArcDeletion& >(change));
          break;
 
        case GraphChangeType::ARC_REVERSAL :
          modifyGraphAlone(reinterpret_cast< const ArcReversal& >(change));
          break;
 
        default :
          GUM_ERROR(OperationNotAllowed,
                    "edge modifications are not supported by digraph constraint")
      }
    }

    INLINE bool StructuralConstraintDiGraph::isAlwaysInvalidAlone(const GraphChange&) const {
      return false;
    }

    INLINE void StructuralConstraintDiGraph::setGraph(Size nb_nodes) {
      _DiGraph_graph_.clear();
 
      for (NodeId i = 0; i < nb_nodes; ++i) {
        _DiGraph_graph_.addNodeWithId(i);
      }
    }
 
// include all the methods applicable to the whole class hierarchy
#  define GUM_CONSTRAINT_CLASS_NAME StructuralConstraintDiGraph
#  include <agrum/BN/learning/constraints/structuralConstraintPatternRootInline.h>
#  undef GUM_CONSTRAINT_CLASS_NAME
 
  } /* namespace learning */
 
} /* namespace gum */
 
#endif /* DOXYGEN_SHOULD_SKIP_THIS */