NDBT_ResultRow.cpp
上传用户:romrleung
上传日期:2022-05-23
资源大小:18897k
文件大小:3k
- /* 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; either version 2 of the License, or
- (at your option) any later version.
- 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 */
- #include <ndb_global.h>
- #include "NDBT_ResultRow.hpp"
- #include <NdbOut.hpp>
- #include <NdbSchemaCon.hpp>
- NDBT_ResultRow::NDBT_ResultRow(const NdbDictionary::Table& tab,
- char attrib_delimiter)
- : m_table(tab)
- {
- assert(tab.getObjectStatus() == NdbDictionary::Object::Retrieved);
- cols = tab.getNoOfColumns();
- names = new char * [cols];
- data = new NdbRecAttr * [cols];
-
- for(int i = 0; i<cols; i++){
- names[i] = new char[255];
- strcpy(names[i], tab.getColumn(i)->getName());
- }
- ad[0] = attrib_delimiter;
- ad[1] = 0;
- m_ownData = false;
- }
- NDBT_ResultRow::~NDBT_ResultRow(){
- for(int i = 0; i<cols; i++){
- delete [] names[i];
- }
- delete [] names;
- if(m_ownData){
- for(int i = 0; i<cols; i++)
- delete data[i];
- }
- delete [] data;
- }
- NdbRecAttr* &
- NDBT_ResultRow::attributeStore(int i){
- return data[i];
- }
- const NdbRecAttr*
- NDBT_ResultRow::attributeStore(int i) const {
- return data[i];
- }
- const
- NdbRecAttr *
- NDBT_ResultRow::attributeStore(const char* name) const {
- for(int i = 0; i<cols; i++){
- if (strcmp(names[i], name) == 0)
- return data[i];
- }
- assert(false);
- return 0;
- }
- NdbOut &
- NDBT_ResultRow::header (NdbOut & out) const {
- for(int i = 0; i<cols; i++){
- out << names[i];
- if (i < cols-1)
- out << ad;
- }
- return out;
- }
- BaseString NDBT_ResultRow::c_str() {
-
- BaseString str;
-
- char buf[10];
- for(int i = 0; i<cols; i++){
- if(data[i]->isNULL()){
- sprintf(buf, "NULL");
- str.append(buf);
- }else{
- Uint32* p = (Uint32*)data[i]->aRef();
- Uint32 sizeInBytes = data[i]->attrSize() * data[i]->arraySize();
- for (Uint32 j = 0; j < sizeInBytes; j+=(sizeof(Uint32))){
- str.append("H'");
- sprintf(buf, "%.8x", *p);
- p++;
- str.append(buf);
- if ((j + sizeof(Uint32)) < sizeInBytes)
- str.append(", ");
- }
- }
- str.append("n");
- }
- str.append("*");
-
- //ndbout << "NDBT_ResultRow::c_str() = " << str.c_str() << endl;
-
- return str;
- }
- NdbOut &
- operator << (NdbOut& ndbout, const NDBT_ResultRow & res) {
- if (res.cols != 0)
- {
- ndbout << *(res.data[0]);
- for(int i = 1; i<res.cols; i++)
- ndbout << res.ad << *(res.data[i]);
- }
- return ndbout;
- }
- NDBT_ResultRow *
- NDBT_ResultRow::clone () const {
- NDBT_ResultRow * row = new NDBT_ResultRow(m_table, ad[0]);
- row->m_ownData = true;
- Uint32 noOfColumns = m_table.getNoOfColumns();
- for(Uint32 i = 0; i < noOfColumns; i++){
- row->data[i] = data[i]->clone();
- }
-
- return row;
- }