object.hh

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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 _D_OBJECT_
#define _D_OBJECT_
 
#include "raslib/oid.hh"
 
#include <cstdlib>
 
// forward declarations
class r_Database;
class r_Transaction;
class r_Type;
 
//@ManMemo: Module: {\bf rasodmg}
 
class r_Object
{
public:
    r_Object(r_Transaction *transaction = NULL);
 
    r_Object(unsigned short objType, r_Transaction *transaction = NULL);
    r_Object(const r_Object &, unsigned short objType = 0, r_Transaction *transaction = NULL);
    virtual ~r_Object();
 
    void mark_modified();
 
    void *operator new(size_t size);
 
    void *operator new(size_t size, r_Database *database, const char *type_name = 0);
 
    void *operator new(size_t size, const char *type_name);
 
    void operator delete(void *obj_ptr);
 
    void set_type_by_name(const char *name);
    void set_type_structure(const char *name);
 
    const char *get_type_name() const;
 
    const char *get_type_structure() const;
 
    const r_OId &get_oid() const;
 
    const r_Type *get_type_schema();
 
    void set_type_schema(const r_Type *type);
 
    //@Man: Methods and types for internal use only:
 
 
    enum ObjectStatus
    {
        no_status,
        deleted,
        created,
        modified,
        read,
        transient
    };
    enum ObjectType
    {
        no_object,
        persistent_object,
        transient_object
    };
 
    virtual void insert_obj_into_db() = 0;
    virtual void insert_obj_into_db(const char *) = 0;
    virtual void update_obj_in_db();
    virtual void load_obj_from_db();
    void delete_obj_from_db();
 
    void initialize_oid(const r_OId &initOId);
 
    virtual void r_activate()
    {
        ;
    }
    virtual void r_deactivate();
 
    bool test_status(ObjectStatus status);
    ObjectStatus get_status() const;
 
    void set_object_name(const char *name);
    const char *get_object_name() const;
 
    void *operator new(size_t size, r_Database *database, ObjectStatus status, const r_OId &oid);
 
 
 
    r_Transaction *get_transaction() const;
 
protected:
    void update_transaction();
 
    bool test_type(ObjectType type);
 
    char *object_name{0};
 
    char *type_name{0};
 
    char *type_structure{0};
 
    r_Type *type_schema{0};
 
    unsigned short internal_obj_type{0};
 
    r_Transaction *transaction{NULL};
 
private:
    ObjectStatus object_status;
 
    ObjectType object_type;
 
    r_OId oid;
 
    static ObjectType next_object_type;
 
    static ObjectStatus next_object_status;
 
    static char *next_object_type_name;
 
    static r_OId next_object_oid;
 
    static ObjectType last_object_type;
};
 
#endif