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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 _KEYOBJECT_HH_
#define _KEYOBJECT_HH_
class Tile;
class KeyObject;
#include "reladminif/dbobject.hh"
#include "raslib/minterval.hh"
#include "reladminif/dbref.hh"
/**
* @file keyobject.hh
*
* @ingroup indexmgr
*
* @Doc:
* This class is a carrier structure which carries objects and their domains
* through the different levels of the index.
*/
class KeyObject
{
public:
KeyObject();
KeyObject(const KeyObject& old);
/*@Doc:
Copy constructor. Copies the tile pointer.
*/
KeyObject(const Tile* p);
/*@Doc:
Construccts a new KeyObject. The type (persistent/transinet)
is deremined based on the Tile. The domain also.
This constructor is sometimes misused by the compiler in statements like KeyObject p = 0.
This will cause a crash because the domain is read from the tile which is NULL : )
*/
KeyObject(const DBObjectId& obj, const r_Minterval& dom);
/*@Doc:
Constructs a new KeyObject for a persistent object.
*/
const DBObjectId& getObject() const;
/*@Doc:
Returns a smartpointer to the persistent object attribute.
If this is a transient object carrier the returned smart-
pointer is invalid.
*/
Tile* getTransObject() const;
/*@Doc:
Returns the transient object. If this KeyObject carries
a persistent object a NULL is returned.
*/
r_Minterval getDomain() const;
/*@Doc:
Returns the domain which is associated with the objects that
is carried.
*/
~KeyObject();
/*@Doc:
Does not delete the TransTile!!
*/
bool isInitialised() const;
/*@Doc:
Returns true if trans object is initialised or the dbref is initialised.
*/
bool isPersCarrier() const;
/*@Doc:
Returns true if the transobject attribute is NULL.
*/
void setDomain(const r_Minterval& dom);
/*@Doc:
Alters the domain the KeyObject carries.
*/
void setTransObject(const Tile* tile);
/*@Doc:
makes the KeyObject a transient carrier and copies the pointer.
*/
void setObject(const DBObjectId& obj);
/*@Doc:
makes the KeyObject a persistent carrier and copies object.
*/
protected:
DBObjectId persobject;
/*@Doc:
A smartpointer to the carried object if it is persistent.
*/
r_Minterval domain;
/*@Doc:
The domain which the carried object belongs to.
*/
Tile* transobject;
/*@Doc:
Attribute for storing a transtile. is NULL if a persistent
object is carried.
*/
};
/*@Doc:
Prints the status of KeyObject object.
*/
extern std::ostream& operator<<(std::ostream& in, const KeyObject& d);
#endif
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