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/*
* This file is part of rasdaman community.
*
* Rasdaman community is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Rasdaman community is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with rasdaman community. If not, see <http://www.gnu.org/licenses/>.
*
* Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009 Peter Baumann /
rasdaman GmbH.
*
* For more information please see <http://www.rasdaman.org>
* or contact Peter Baumann via <baumann@rasdaman.com>.
*/
#ifndef _MDDSET_HH_
#define _MDDSET_HH_
class MDDSet;
class OId;
class EOId;
class r_Error;
class DBMDDObj;
class CollectionType;
#include "reladminif/lists.h"
#include "mddid.hh"
#include "reladminif/dbnamedobject.hh"
#include "reladminif/dbref.hh"
//@ManMemo: Module: {\bf mddif}
/*@Doc:
MDDSet is the persistent class for collections of MDD objects.
Each instance of MDDSet represents a collection stored in the base
DBMS.
This class should only be used by DBMDDColl.
*/
class DBMDDSet : public DBNamedObject
{
public:
DBMDDSet(const char* name, const CollectionType* type) throw (r_Error);
/*@Doc:
creates a new set
*/
DBMDDSet(const char* name, const OId& id, const CollectionType* type) throw (r_Error);
/*@Doc:
creates a new set
*/
static DBMDDSetId getDBMDDSet(const char* name) throw (r_Error);
static DBMDDSetId getDBMDDSet(const OId& id) throw (r_Error);
static bool deleteDBMDDSet(const OId& id);
/*@Doc:
returns succes
*/
static bool deleteDBMDDSet(const char* name);
/*@Doc:
returns succes
*/
virtual void printStatus(unsigned int level = 0, std::ostream& stream = std::cout) const;
virtual void setPersistent(bool state) throw (r_Error);
/*@Doc:
throws r_Error when the mdd set may not be made persistent.
*/
void insert(DBMDDObjId newObj);
/*@Doc:
Inserts an object into the MDD Collection.
The persistent reference count of this DBMDDObj is updated.
*/
DBMDDObjIdIter* newIterator() const;
/*@Doc:
Returns a new iterator for this collection.
*/
unsigned int getCardinality() const;
/*@Doc:
Returns the number of elements in the collection.
*/
void remove(DBMDDObjId& obj);
/*@Doc:
Removes an object from the MDD Collection.
The persistent reference count of this DBMDDObj is updated.
*/
void removeAll();
/*@Doc:
Removes all objects from the MDD Collection.
The persistent reference count of the DBMDDObjs is updated.
*/
void releaseAll();
/*@Doc:
Releases all dynamic memory used by this collection.
*/
bool contains_element(const DBMDDObjId& elem) const;
/*@Doc:
*/
virtual ~DBMDDSet( );
/*@Doc:
*/
void deleteName();
/*@Doc:
sets the name of this object to a null string.
used by DatabaseIf::destroyRoot
*/
virtual r_Bytes getMemorySize() const;
/*@Doc:
*/
const CollectionType* getCollType() const;
/*@Doc:
Returns the collectiontype of this entry.
*/
protected:
friend class ObjectBroker;
typedef std::set<DBMDDObjId, std::less<DBMDDObjId> > DBMDDObjIdSet;
DBMDDSet(const OId& id) throw (r_Error);
/*@Doc:
gets an existing coll from the db
*/
virtual void updateInDb() throw(r_Error);
/*@Doc:
*/
virtual void insertInDb() throw(r_Error);
/*@Doc:
*/
virtual void readFromDb() throw(r_Error);
/*@Doc:
*/
virtual void deleteFromDb() throw(r_Error);
/*@Doc:
*/
private:
DBMDDObjIdSet mySet;
/*@Doc:
Memory representation of the list of oids of DBMDDObjs.
*/
const CollectionType* collType;
/*@Doc:
Pointer to the collectiontype.
*/
};
#endif
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