IItemConnectivityInfo.h

// -*- tab-width: 2; indent-tabs-mode: nil; coding: utf-8-with-signature -*-
//-----------------------------------------------------------------------------
// Copyright 2000-2026 CEA (www.cea.fr) IFPEN (www.ifpenergiesnouvelles.com)
// See the top-level COPYRIGHT file for details.
// SPDX-License-Identifier: Apache-2.0
//-----------------------------------------------------------------------------
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/* IItemConnectivityInfo.h                                     (C) 2000-2025 */
/*                                                                           */
/* Interface for connectivity information by entity type.                    */
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#ifndef ARCANE_CORE_IITEMCONNECTIVITYINFO_H
#define ARCANE_CORE_IITEMCONNECTIVITYINFO_H
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#include "arcane/core/ArcaneTypes.h"
 
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namespace Arcane
{
 
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/*!
 * \ingroup Mesh
 *
 * \brief Interface for connectivity information by entity type.
 *
 * This interface allows knowing for a given entity type
 * the maximum number of connected entities. This can be used
 * for example to size variables.
 *
 * Instances of this interface are generally retrieved
 * via IItemFamily::localConnectivityInfos() for local information within the
 * subdomain or IItemFamily::globalConnectivityInfos() for global information
 * across all meshes.
 */
class IItemConnectivityInfo
{
 public:
 
  virtual ~IItemConnectivityInfo() = default; //<! Releases resources
 
 public:
 
  //! Maximum number of nodes per entity
  virtual Integer maxNodePerItem() const = 0;
 
  //! Maximum number of edges per entity
  virtual Integer maxEdgePerItem() const = 0;
 
  //! Maximum number of faces per entity
  virtual Integer maxFacePerItem() const = 0;
 
  //! Maximum number of cells per entity
  virtual Integer maxCellPerItem() const = 0;
};
 
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} // End namespace Arcane
 
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#endif