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CdbBdbSPartitionListenerP.ddl

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#ifndef CDBBDBSHARED_PARTITION_LISTENER_P_HH
#define CDBBDBSHARED_PARTITION_LISTENER_P_HH

// File and Version Information:
//      $Id: CdbBdbSPartitionListenerP.ddl,v 1.2 2002/09/23 22:41:11 gapon Exp $

#include "BdbUtil/Bdb.hh"

#include "CdbBase/CdbCommon.hh"

/// Base class for a persistent Listener
/**
  * This is an abstract persistent class providing the listening methods
  * to be called when the state of a partition changes.
  */
class CdbBdbSPartitionListenerP : public BdbPersObj {

public:

  /// Destructor

    virtual ~CdbBdbSPartitionListenerP( );

  /// Close a partition
  /**
    * The partition closure time will be taken from a persistent partition
    * object corresponding to the specified (the partition) identifier. The idea
    * behind this is that the partition closing operation is made of two
    * steps done sequentially:
    *
    * - close a persistent partition object at the MASTER or a SLAVE database
    * - update the PartitionLayout.
    *
    * This actually highlights one important idea that the only reliable
    * source of a partition's "openness" is the persistent partition object
    * itself.
    *
    * The method will return CdbStatus::NotFound if the partition was not
    * found in the layout. Other possible completion statuses are as usual.
    *
    * This pure virtual method is supposed to be implemented by a subclass.
    */
    virtual CdbStatus close( d_UShort theId     /**< the partition's identifier */
                           ) = 0;
};

#endif /* CDBBDBSHARED_PARTITION_LISTENER_P_HH */

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