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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; 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 "Code_query_repeat.hpp"
#include "Code_root.hpp"
// Plan_query_repeat
Plan_query_repeat::~Plan_query_repeat()
{
}
Plan_base*
Plan_query_repeat::analyze(Ctx& ctx, Ctl& ctl)
{
return this;
}
Exec_base*
Plan_query_repeat::codegen(Ctx& ctx, Ctl& ctl)
{
Exec_query_repeat* exec = new Exec_query_repeat(ctl.m_execRoot);
ctl.m_execRoot->saveNode(exec);
// SqlSpecs is empty
const SqlSpecs sqlSpecs(0);
Exec_query_repeat::Code& code = *new Exec_query_repeat::Code(sqlSpecs, m_forever, m_maxcount);
exec->setCode(code);
return exec;
}
void
Plan_query_repeat::print(Ctx& ctx)
{
ctx.print(" [query_repeat");
if (! m_forever)
ctx.print(" %ld", (long)m_maxcount);
ctx.print("]");
}
// Exec_query_repeat
Exec_query_repeat::Code::~Code()
{
}
Exec_query_repeat::Data::~Data()
{
}
Exec_query_repeat::~Exec_query_repeat()
{
}
void
Exec_query_repeat::alloc(Ctx& ctx, Ctl& ctl)
{
const Code& code = getCode();
// SqlRow is empty
Data& data = *new Data(this, code.sqlSpecs());
setData(data);
}
void
Exec_query_repeat::execImpl(Ctx& ctx, Ctl& ctl)
{
Data& data = getData();
data.m_count = 0;
}
bool
Exec_query_repeat::fetchImpl(Ctx& ctx, Ctl& ctl)
{
const Code& code = getCode();
Data& data = getData();
// fetch until count is up
if (code.m_forever || data.m_count < code.m_maxcount) {
data.m_count++;
return true;
}
return false;
}
void
Exec_query_repeat::close(Ctx& ctx)
{
}
void
Exec_query_repeat::print(Ctx& ctx)
{
const Code& code = getCode();
ctx.print(" [query_repeat");
if (! code.m_forever)
ctx.print(" %ld", (long)code.m_maxcount);
ctx.print("]");
}
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