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CdbBdbSCollectionBte.hh

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#ifndef CDBBDBSHARED_COLLECTION_BTE_HH
#define CDBBDBSHARED_COLLECTION_BTE_HH

// File and Version Information:
//      $Id: CdbBdbSCollectionBte.hh,v 1.3 2004/08/06 05:54:24 bartoldu Exp $

#include "BdbUtil/Bdb.hh"

#include "CdbBase/CdbCommon.hh"

#include "CdbBdbShared/CdbBdbSCollectionElementP.hh"

/// Objects of this class represent entries in the corresponding B-tree 
/**
  * Objects of this embedded class represent simple pairs of the "key-value"
  * entries in a B-tree, which is meant to sort CollectionElement-s.
  */
class CdbBdbSCollectionBte {

public:

  // Default and normal constructors

    CdbBdbSCollectionBte( )
    { }

    CdbBdbSCollectionBte( d_UShort theKey ) :
        key(theKey)
    { }

    CdbBdbSCollectionBte( d_UShort                                 theKey,
                          const BdbRef(CdbBdbSCollectionElementP)& theValue ) :
        key(theKey),
        value(theValue)
    { }

  /// Copy constructor

    CdbBdbSCollectionBte( const CdbBdbSCollectionBte& theEntry )
    {
        key   = theEntry.key;
        value = theEntry.value;
    }

  /// The destructor
  /**
    * NOTE: The destructor is NOT virtual because this is an embedded
    *       class.
    */
    ~CdbBdbSCollectionBte( ) { }

  /// The assignment operator
  /**
    */
    CdbBdbSCollectionBte& operator=( const CdbBdbSCollectionBte& theEntry )
    {
        if( this != &theEntry ) {
            key   = theEntry.key;
            value = theEntry.value;
        }
        return *this;
    }

  /// The "equal" operator
  /**
    * NOTE: This comparisioon is only done for "key".
    */
    bool operator==( const CdbBdbSCollectionBte& theEntry ) const
    {
        return key == theEntry.key;
    }

  /// The "less" operator
  /**
    * NOTE: This comparisioon is only done for "key".
    */
    bool operator<( const CdbBdbSCollectionBte& theEntry ) const
    {
        return key < theEntry.key;
    }

public:

    d_UShort                          key;      // The key
    BdbRef(CdbBdbSCollectionElementP) value;    // The value of the coresponding data object
};

inline std::ostream&
operator<<( std::ostream&                    o,
            const CdbBdbSCollectionBte& theEntry )
{
    return o << theEntry.key <<std::endl;
}

#endif  // CDBBDBSHARED_COLLECTION_BTE_HH

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