structuralConstraintDiGraph_inl.h

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#pragma once

#include <agrum/BN/learning/constraints/structuralConstraintDiGraph.h>   // to ease IDE parser
#ifndef DOXYGEN_SHOULD_SKIP_THIS
 
namespace gum::learning {

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

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

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

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

  INLINE bool StructuralConstraintDiGraph::checkArcTriangleDeletion1Alone(NodeId node1,
                                                                          NodeId node2,
                                                                          NodeId node3) const {
    return _graph_.existsArc(node1, node2) && _graph_.existsArc(node2, node3)
        && _graph_.existsArc(node1, node3) && !_graph_.existsArc(node2, node1)
        && !_graph_.existsArc(node3, node1);
  }

  INLINE bool StructuralConstraintDiGraph::checkArcTriangleDeletion2Alone(NodeId node1,
                                                                          NodeId node2,
                                                                          NodeId node3) const {
    return _graph_.existsArc(node1, node2) && _graph_.existsArc(node2, node3)
        && _graph_.existsArc(node1, node3) && !_graph_.existsArc(node3, node2);
  }

  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 ArcTriangleDeletion1& change) const {
    return checkArcTriangleDeletion1Alone(change.node1(), change.node2(), change.node3());
  }

  INLINE bool StructuralConstraintDiGraph::checkModificationAlone(
      const ArcTriangleDeletion2& change) const {
    return checkArcTriangleDeletion2Alone(change.node1(), change.node2(), change.node3());
  }


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

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

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

  INLINE void StructuralConstraintDiGraph::modifyGraphAlone(const ArcTriangleDeletion1& change) {
    _graph_.eraseArc(Arc(change.node1(), change.node2()));
    _graph_.eraseArc(Arc(change.node1(), change.node3()));
    _graph_.eraseArc(Arc(change.node2(), change.node3()));
    _graph_.addArc(change.node2(), change.node1());
    _graph_.addArc(change.node3(), change.node1());
  }

  INLINE void StructuralConstraintDiGraph::modifyGraphAlone(const ArcTriangleDeletion2& change) {
    _graph_.eraseArc(Arc(change.node1(), change.node3()));
    _graph_.eraseArc(Arc(change.node2(), change.node3()));
    _graph_.addArc(change.node3(), change.node1());
  }


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

  INLINE void StructuralConstraintDiGraph::setGraph(Size nb_nodes) {
    _graph_.clear();
 
    for (NodeId i = 0; i < nb_nodes; ++i) {
      _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 gum::learning */
 
#endif /* DOXYGEN_SHOULD_SKIP_THIS */