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/* Copyright (C) 2003 MySQL AB
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
/*********************************************************************
Name: NdbSchemaCon.cpp
Include:
Link:
Author: UABMNST Mona Natterkvist UAB/B/SD
EMIKRON Mikael Ronstrom
Date: 020826
Version: 3.0
Description: Old Interface between application and NDB
Documentation:
Adjust: 980126 UABMNST First version.
020826 EMIKRON New version adapted to new DICT version
040524 Magnus Svensson - Adapted to not be included in public NdbApi
unless the user wants to use it.
NOTE: This file is only used as a compatibility layer for old test programs,
New programs should use NdbDictionary.hpp
*********************************************************************/
#include <ndb_global.h>
#include <NdbApi.hpp>
#include <NdbSchemaCon.hpp>
#include <NdbSchemaOp.hpp>
/*********************************************************************
NdbSchemaCon(Ndb* aNdb);
Parameters: aNdb: Pointers to the Ndb object
Remark: Creates a schemacon object.
************************************************************************************************/
NdbSchemaCon::NdbSchemaCon( Ndb* aNdb ) :
theNdb(aNdb),
theFirstSchemaOpInList(NULL),
theMagicNumber(0x75318642)
{
theError.code = 0;
}//NdbSchemaCon::NdbSchemaCon()
/*********************************************************************
~NdbSchemaCon();
Remark: Deletes the connection object.
************************************************************************************************/
NdbSchemaCon::~NdbSchemaCon()
{
}//NdbSchemaCon::~NdbSchemaCon()
/*********************************************************************
NdbSchemaOp* getNdbSchemaOp();
Return Value Return a pointer to a NdbSchemaOp object if getNdbSchemaOp was sussesful.
Return NULL: In all other case.
Parameters: tableId : Id of the database table beeing deleted.
************************************************************************************************/
NdbSchemaOp*
NdbSchemaCon::getNdbSchemaOp()
{
NdbSchemaOp* tSchemaOp;
if (theFirstSchemaOpInList != NULL) {
theError.code = 4401; // Only support one add table per transaction
return NULL;
}//if
tSchemaOp = new NdbSchemaOp(theNdb);
if ( tSchemaOp == NULL ) {
theError.code = 4000; // Could not allocate schema operation
return NULL;
}//if
theFirstSchemaOpInList = tSchemaOp;
int retValue = tSchemaOp->init(this);
if (retValue == -1) {
release();
theError.code = 4000; // Could not allocate buffer in schema operation
return NULL;
}//if
return tSchemaOp;
}//NdbSchemaCon::getNdbSchemaOp()
/*********************************************************************
int execute();
Return Value: Return 0 : execute was successful.
Return -1: In all other case.
Parameters : aTypeOfExec: Type of execute.
Remark: Initialise connection object for new transaction.
************************************************************************************************/
int
NdbSchemaCon::execute()
{
if(theError.code != 0) {
return -1;
}//if
NdbSchemaOp* tSchemaOp;
tSchemaOp = theFirstSchemaOpInList;
if (tSchemaOp == NULL) {
theError.code = 4402;
return -1;
}//if
if ((tSchemaOp->sendRec() == -1) || (theError.code != 0)) {
// Error Code already set in other place
return -1;
}//if
return 0;
}//NdbSchemaCon::execute()
/*********************************************************************
void release();
Remark: Release all schemaop.
************************************************************************************************/
void
NdbSchemaCon::release()
{
NdbSchemaOp* tSchemaOp;
tSchemaOp = theFirstSchemaOpInList;
if (tSchemaOp != NULL) {
tSchemaOp->release();
delete tSchemaOp;
}//if
theFirstSchemaOpInList = NULL;
return;
}//NdbSchemaCon::release()
#include <NdbError.hpp>
static void
update(const NdbError & _err){
NdbError & error = (NdbError &) _err;
ndberror_struct ndberror = (ndberror_struct)error;
ndberror_update(&ndberror);
error = NdbError(ndberror);
}
const
NdbError &
NdbSchemaCon::getNdbError() const {
update(theError);
return theError;
}
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