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CdbBdbSDirectoryNodeP.ddl

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#ifndef CDBBDBSHARED_DIRECTORY_NODE_P_HH
#define CDBBDBSHARED_DIRECTORY_NODE_P_HH

// File and Version Information:
//      $Id: CdbBdbSDirectoryNodeP.ddl,v 1.4 2004/08/06 05:54:24 bartoldu Exp $

#include "BdbUtil/Bdb.hh"

#include "CdbBdbShared/CdbBdbSNodeP.hh"

/// Persistent directory node of the 'paged' v-array class
/**
  * This class provides storage for persistent reference onto other nodes.
  */
template< typename E >
class CdbBdbSDirectoryNodeP : public CdbBdbSNodeP<E> {

public:

  // Constructors

    CdbBdbSDirectoryNodeP( d_ULong theLevel = 1,
                           d_ULong theSize  = 0 );

  // Destructor

    virtual ~CdbBdbSDirectoryNodeP( );

  // Resize the node (including its subnodes if any) to fit specified size

    BdbStatus resize( d_ULong                        theNewSize,
                      d_ULong                        theNumPerLeaf,
                      d_ULong                        theNumPerDirectory,
                      const BdbRef(CdbBdbSNodeP<E>)& theNode );

  // Resize the node (including its subnodes if any) to fit specified size

    virtual BdbStatus resize( d_ULong theNewSize,
                              d_ULong theNumPerLeaf,
                              d_ULong theNumPerDirectory );

  // Modify an element at specified location

    virtual void setElementAt( d_ULong  theIndex,
                               const E& value,
                               d_ULong  theNumPerLeaf,
                               d_ULong  theNumPerDirectory );

  // Return a copy of an element at specified location

    virtual E elementAt( d_ULong theIndex,
                         d_ULong theNumPerLeaf,
                         d_ULong theNumPerDirectory ) const;

  /// Dump the node (recursive)
  /**
    * The detailed dump of the contents is only done if the corresponding
    * flass value is "true".
    */
    virtual void dump( d_ULong  numSpaces,
                       std::ostream& o,
                       bool     dumpContentsFlag ) const;

public:

  // An array of embeded objects

    ooVArray(BdbRef(CdbBdbSNodeP<E>)) _nodes;
};

#ifdef    BABAR_COMP_INST
#include "CdbBdbShared/CdbBdbSDirectoryNodeP.cc"
#endif /* BABAR_COMP_INST */

#endif /* CDBBDBSHARED_DIRECTORY_NODE_P_HH */

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