src/sql/CopyTblStatement.cxx

   1 /***************************************************************************
   2  *   Copyright (C) 2007 by Prabakaran Thirumalai   *
   3  *   praba_tuty@yahoo.com   *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15   ***************************************************************************/
  16 #include <os.h>
  17 #include <Statement.h>
  18 #include <TableImpl.h>
  19 #include <OrderTableImpl.h>
  20
  21 CopyTblStatement::CopyTblStatement()
  22 {
  23     innerSelStmt = NULL;
  24     totalFields = 0;
  25     bindFieldValues= NULL;
  26 }
  27
  28 CopyTblStatement::~CopyTblStatement()
  29 {
  30     if (table) { table->close(); table = NULL; }
  31     SelStatement *stmt= (SelStatement *)innerSelStmt;
  32     stmt->close();
  33     if(totalFields){
  34        for(int i=0;i<totalFields;i++)
  35        {
  36            free(bindFieldValues[i]);
  37        }
  38        free(bindFieldValues); bindFieldValues = NULL;
  39     }
  40     totalFields =0;
  41     delete innerSelStmt;
  42 }
  43
  44 DbRetVal CopyTblStatement::resolve()
  45 {
  46     DbRetVal rv = OK;
  47     strcpy(tblName,parsedData->getPKTableName());
  48     SelStatement *sStmt = new SelStatement();
  49     innerSelStmt = ( Statement *) sStmt;
  50     innerSelStmt->setDbMgr(dbMgr);
  51     innerSelStmt->setParsedData(parsedData);
  52     innerSelStmt->resolve();
  53     if(parsedData->getCreateTbl())
  54         rv = resolveForCreate();
  55     else
  56         rv = resolveForInsert();
  57     return rv;
  58 }
  59
  60 DbRetVal CopyTblStatement::resolveForInsert()
  61 {
  62     table = dbMgr->openTable(tblName);
  63     if (table == NULL)
  64     {
  65         printError(ErrNotExists, "Unable to open the table:Table not exists");
  66         return ErrNotExists;
  67     }
  68     table->setLoading(true);
  69     //bind field
  70     List fNameList = table->getFieldNameList();
  71     ListIterator fNameIter = fNameList.getIterator();
  72     FieldInfo *info = new FieldInfo();
  73     int fcount = 1; void *valBuf; int fieldsize=0;
  74     Identifier *elem = NULL;
  75     totalFields = fNameList.size();
  76     bindFieldValues = (void**) malloc( totalFields * sizeof(char*));
  77     memset(bindFieldValues, 0, totalFields * sizeof(char*));
  78     SelStatement *selStmt = (SelStatement*) innerSelStmt;
  79     while (fNameIter.hasElement())
  80     {
  81         elem = (Identifier*) fNameIter.nextElement();
  82         table->getFieldInfo((const char*)elem->name, info);
  83         //TODO :: Should free
  84         valBuf = AllDataType::alloc(info->type, info->length);
  85         table->bindFld(elem->name, valBuf);
  86         fieldsize=0;
  87         selStmt->setBindField(fcount, valBuf);
  88         bindFieldValues[fcount-1] = valBuf;
  89         fcount++;
  90     }
  91     delete info;
  92     fNameIter.reset();
  93     while (fNameIter.hasElement())
  94     {
  95          delete (Identifier*) fNameIter.nextElement();
  96     }
  97     fNameList.reset();
  98     return OK;
  99 }
 100
 101 DbRetVal CopyTblStatement::resolveForCreate()
 102 {
 103     DbRetVal rv = OK;
 104     int  nop = 0;
 105     SelStatement *stmt = (SelStatement*) innerSelStmt;
 106     nop = stmt->noOfProjFields();
 107     FieldInfo *field = new FieldInfo();
 108     TableDef tabDef;
 109     char name[IDENTIFIER_LENGTH];
 110     for(int i=0; i<nop; i++)
 111     {
 112         rv = stmt->getProjFldInfo(i+1,field);
 113         Table::getFieldNameAlone(field->fldName, name);
 114         tabDef.addField(name,field->type, field->length, field->defaultValueBuf, field->isNull);
 115     }
 116     delete field;
 117     rv = dbMgr->createTable(tblName, tabDef);
 118     if(rv!=OK){
 119        return rv;
 120     }
 121     rv = resolveForInsert();
 122     return rv;
 123 }
 124
 125 DbRetVal CopyTblStatement::execute(int &rowsAffected)
 126 {
 127     DbRetVal rv = OK;
 128     SelStatement *selStmt = (SelStatement*) innerSelStmt;
 129     selStmt->execute(rowsAffected);
 130     while(selStmt->fetch())
 131     {
 132         rv = table->insertTuple();
 133         if(rv!=OK) break;
 134     }
 135     if( (rv!=OK) && ( !parsedData->getCreateTbl()))
 136     {
 137         dbMgr->dropTable(tblName);
 138     }
 139     return rv;
 140 }
 141
 142 DbRetVal CopyTblStatement::setShortParam(int paramNo, short value)
 143 {
 144     SelStatement *stmt = (SelStatement*) innerSelStmt;
 145     return stmt->setShortParam(paramNo,value);
 146 }
 147
 148 DbRetVal CopyTblStatement::setIntParam(int paramNo, int value)
 149 {
 150     SelStatement *stmt = (SelStatement*) innerSelStmt;
 151     return stmt->setIntParam(paramNo,value);
 152 }
 153
 154 DbRetVal CopyTblStatement::setLongParam(int paramNo, long value)
 155 {
 156     SelStatement *stmt = (SelStatement*) innerSelStmt;
 157     return stmt->setLongParam(paramNo,value);
 158 }
 159
 160 DbRetVal CopyTblStatement::setLongLongParam(int paramNo, long long value)
 161 {
 162     SelStatement *stmt = (SelStatement*) innerSelStmt;
 163     return stmt->setLongLongParam(paramNo,value);
 164 }
 165
 166 DbRetVal CopyTblStatement::setByteIntParam(int paramNo, ByteInt value)
 167 {
 168     SelStatement *stmt = (SelStatement*) innerSelStmt;
 169     return stmt->setByteIntParam(paramNo,value);
 170 }
 171
 172 DbRetVal CopyTblStatement::setFloatParam(int paramNo, float value)
 173 {
 174     SelStatement *stmt = (SelStatement*) innerSelStmt;
 175     return stmt->setFloatParam(paramNo,value);
 176 }
 177
 178 DbRetVal CopyTblStatement::setDoubleParam(int paramNo, double value)
 179 {
 180     SelStatement *stmt = (SelStatement*) innerSelStmt;
 181     return stmt->setDoubleParam(paramNo,value);
 182 }
 183
 184 DbRetVal CopyTblStatement::setStringParam(int paramNo, char *value)
 185 {
 186     SelStatement *stmt = (SelStatement*) innerSelStmt;
 187     return stmt->setStringParam(paramNo,value);
 188 }
 189
 190 DbRetVal CopyTblStatement::setDateParam(int paramNo, Date value)
 191 {
 192     SelStatement *stmt = (SelStatement*) innerSelStmt;
 193     return stmt->setDateParam(paramNo,value);
 194 }
 195
 196 DbRetVal CopyTblStatement::setTimeParam(int paramNo, Time value)
 197 {
 198     SelStatement *stmt = (SelStatement*) innerSelStmt;
 199     return stmt->setTimeParam(paramNo,value);
 200 }
 201
 202 DbRetVal CopyTblStatement::setTimeStampParam(int paramNo, TimeStamp value)
 203 {
 204     SelStatement *stmt = (SelStatement*) innerSelStmt;
 205     return stmt->setTimeStampParam(paramNo,value);
 206 }
 207
 208 DbRetVal CopyTblStatement::setBinaryParam(int paramNo, void *value, int length)
 209 {
 210     SelStatement *stmt = (SelStatement*) innerSelStmt;
 211     return stmt->setBinaryParam(paramNo,value,length);
 212 }
 213
 214 void* CopyTblStatement::getParamValuePtr(int pos)
 215 {
 216     SelStatement *stmt = (SelStatement*) innerSelStmt;
 217     return stmt->getParamValuePtr(pos);
 218 }
 219
 220 int CopyTblStatement::getFldPos(char *name)
 221 {
 222    return 0;
 223 }
 224
 225 DbRetVal CopyTblStatement::getParamFldInfo(int paramPos, FieldInfo *&info)
 226 {
 227     DbRetVal rv = OK;
 228     SelStatement *stmt = (SelStatement*) innerSelStmt;
 229     rv = stmt->getParamFldInfo(paramPos, info);
 230     return rv;
 231 }
 232 DbRetVal CopyTblStatement::setParam(int paramNo, void *value)
 233 {
 234     DbRetVal rv = OK;
 235     SelStatement *stmt = (SelStatement*) innerSelStmt;
 236     rv = stmt->setParam(paramNo,value);
 237     return rv;
 238 }