AttrArea.cpp
上传用户:romrleung
上传日期:2022-05-23
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文件大小:2k
- /* 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 "AttrArea.hpp"
- // AttrSpec
- // AttrField
- // AttrArea
- AttrArea::AttrArea(const AttrSpec* specList) :
- m_specList(specList)
- {
- }
- AttrArea::~AttrArea()
- {
- }
- const AttrSpec&
- AttrArea::findSpec(int id) const
- {
- const AttrSpec* p;
- for (p = m_specList; p->m_mode != Attr_mode_undef; p++) {
- if (p->m_id == id)
- break;
- }
- return *p;
- }
- void
- AttrArea::setAttr(Ctx& ctx, int id, const OdbcData& data)
- {
- const AttrSpec& spec = findSpec(id);
- if (spec.m_mode == Attr_mode_undef) {
- ctx.pushStatus(Sqlstate::_HY092, Error::Gen, "undefined attribute id %d", id);
- return;
- }
- ctx_assert(spec.m_type == data.type());
- ctx_assert(spec.m_set != 0);
- spec.m_set(ctx, m_handle, data);
- if (! ctx.ok())
- return;
- Fields::iterator iter;
- if (ctx.logLevel() >= 3) {
- char buf[100];
- data.print(buf, sizeof(buf));
- ctx_log3(("attr handle 0x%x set id %d = %s", (unsigned)m_handle, id, buf));
- }
- iter = m_fields.find(id);
- if (iter != m_fields.end()) {
- AttrField& field = (*iter).second;
- field.setData(data);
- return;
- }
- AttrField field(spec, data);
- m_fields.insert(Fields::value_type(id, field));
- }
- void
- AttrArea::getAttr(Ctx& ctx, int id, OdbcData& data)
- {
- const AttrSpec& spec = findSpec(id);
- if (spec.m_mode == Attr_mode_undef) {
- ctx.pushStatus(Sqlstate::_HY092, Error::Gen, "undefined attribute id %d", id);
- return;
- }
- Fields::iterator iter;
- iter = m_fields.find(id);
- if (iter != m_fields.end()) {
- AttrField& field = (*iter).second;
- data.setValue(field.getData());
- return;
- }
- ctx_assert(spec.m_default != 0);
- spec.m_default(ctx, m_handle, data);
- }