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/* Copyright (c) 2003-2005 MySQL AB
Use is subject to license terms
This program 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; version 2 of the License.
This program 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 this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA */
#ifndef NdbSchemaCon_H
#define NdbSchemaCon_H
#ifndef DOXYGEN_SHOULD_SKIP_DEPRECATED
#include <ndb_types.h>
#include "NdbError.hpp"
#include <NdbSchemaOp.hpp>
class NdbSchemaOp;
class Ndb;
class NdbApiSignal;
/**
* @class NdbSchemaCon
* @brief Represents a schema transaction.
*
* When creating a new table,
* the first step is to get a NdbSchemaCon object to represent
* the schema transaction.
* This is done by calling Ndb::startSchemaTransaction.
*
* The next step is to get a NdbSchemaOp object by calling
* NdbSchemaCon::getNdbSchemaOp.
* The NdbSchemaOp object then has methods to define the table and
* its attributes.
*
* Finally, the NdbSchemaCon::execute method inserts the table
* into the database.
*
* @note Currently only one table can be added per transaction.
* @note Depricated, use NdbDictionary
*/
class NdbSchemaCon
{
friend class Ndb;
friend class NdbSchemaOp;
public:
static
NdbSchemaCon* startSchemaTrans(Ndb* pNdb){
return new NdbSchemaCon(pNdb);
}
static
void closeSchemaTrans(NdbSchemaCon* pSchCon){
delete pSchCon;
}
/**
* Execute a schema transaction.
*
* @return 0 if successful otherwise -1.
*/
int execute();
/**
* Get a schemaoperation.
*
* @note Currently, only one operation per transaction is allowed.
*
* @return Pointer to a NdbSchemaOp or NULL if unsuccessful.
*/
NdbSchemaOp* getNdbSchemaOp();
/**
* Get the latest error
*
* @return Error object.
*/
const NdbError & getNdbError() const;
private:
/******************************************************************************
* These are the create and delete methods of this class.
*****************************************************************************/
NdbSchemaCon(Ndb* aNdb);
~NdbSchemaCon();
/******************************************************************************
* These are the private methods of this class.
*****************************************************************************/
void release(); // Release all schemaop in schemaCon
/***************************************************************************
* These methods are service methods to other classes in the NDBAPI.
***************************************************************************/
int checkMagicNumber(); // Verify correct object
int receiveDICTTABCONF(NdbApiSignal* aSignal);
int receiveDICTTABREF(NdbApiSignal* aSignal);
int receiveCREATE_INDX_CONF(NdbApiSignal*);
int receiveCREATE_INDX_REF(NdbApiSignal*);
int receiveDROP_INDX_CONF(NdbApiSignal*);
int receiveDROP_INDX_REF(NdbApiSignal*);
/*****************************************************************************
* These are the private variables of this class.
*****************************************************************************/
NdbError theError; // Errorcode
Ndb* theNdb; // Pointer to Ndb object
NdbSchemaOp* theFirstSchemaOpInList; // First operation in operation list.
int theMagicNumber; // Magic number
};
inline
int
NdbSchemaCon::checkMagicNumber()
{
if (theMagicNumber != 0x75318642)
return -1;
return 0;
}//NdbSchemaCon::checkMagicNumber()
#endif
#endif
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