本文整理汇总了C++中MetaData::getString方法的典型用法代码示例。如果您正苦于以下问题：C++ MetaData::getString方法的具体用法？C++ MetaData::getString怎么用？C++ MetaData::getString使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类MetaData的用法示例。
在下文中一共展示了MetaData::getString方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: next
feature_ptr occi_featureset::next()
{
while (rs_ != nullptr && rs_->next() == oracle::occi::ResultSet::DATA_AVAILABLE)
{
feature_ptr feature(feature_factory::create(ctx_, feature_id_));
if (use_wkb_)
{
Blob blob = rs_->getBlob(1);
blob.open(oracle::occi::OCCI_LOB_READONLY);
unsigned int size = blob.length();
if (buffer_.size() < size)
{
buffer_.resize(size);
}
oracle::occi::Stream* instream = blob.getStream(1, 0);
instream->readBuffer(buffer_.data(), size);
blob.closeStream(instream);
blob.close();
if (! geometry_utils::from_wkb(feature->paths(), buffer_.data(), size))
{
continue;
}
}
else
{
const std::unique_ptr<SDOGeometry> geom(dynamic_cast<SDOGeometry*>(rs_->getObject(1)));
if (geom.get())
{
convert_geometry(geom.get(), feature);
}
else
{
continue;
}
}
std::vector<MetaData> listOfColumns = rs_->getColumnListMetaData();
for (unsigned int i = 1; i < listOfColumns.size(); ++i)
{
MetaData columnObj = listOfColumns[i];
std::string fld_name = columnObj.getString(MetaData::ATTR_NAME);
int type_oid = columnObj.getInt(MetaData::ATTR_DATA_TYPE);
/*
int type_code = columnObj.getInt(MetaData::ATTR_TYPECODE);
if (type_code == OCCI_TYPECODE_OBJECT)
{
continue;
}
*/
switch (type_oid)
{
case oracle::occi::OCCIBOOL:
feature->put(fld_name, (rs_->getInt(i + 1) != 0));
break;
case oracle::occi::OCCIINT:
case oracle::occi::OCCIUNSIGNED_INT:
feature->put(fld_name, static_cast<mapnik::value_integer>(rs_->getInt(i + 1)));
break;
case oracle::occi::OCCIFLOAT:
case oracle::occi::OCCIBFLOAT:
feature->put(fld_name, (double)rs_->getFloat(i + 1));
break;
case oracle::occi::OCCIDOUBLE:
case oracle::occi::OCCIBDOUBLE:
case oracle::occi::OCCINUMBER:
case oracle::occi::OCCI_SQLT_NUM:
feature->put(fld_name, rs_->getDouble(i + 1));
break;
case oracle::occi::OCCICHAR:
case oracle::occi::OCCISTRING:
case oracle::occi::OCCI_SQLT_AFC:
case oracle::occi::OCCI_SQLT_AVC:
case oracle::occi::OCCI_SQLT_CHR:
case oracle::occi::OCCI_SQLT_LNG:
case oracle::occi::OCCI_SQLT_LVC:
case oracle::occi::OCCI_SQLT_STR:
case oracle::occi::OCCI_SQLT_VCS:
case oracle::occi::OCCI_SQLT_VNU:
case oracle::occi::OCCI_SQLT_VBI:
case oracle::occi::OCCI_SQLT_VST:
case oracle::occi::OCCIROWID:
case oracle::occi::OCCI_SQLT_RDD:
case oracle::occi::OCCI_SQLT_RID:
case oracle::occi::OCCIDATE:
case oracle::occi::OCCI_SQLT_DAT:
case oracle::occi::OCCI_SQLT_DATE:
case oracle::occi::OCCI_SQLT_TIME:
case oracle::occi::OCCI_SQLT_TIME_TZ:
case oracle::occi::OCCITIMESTAMP:
case oracle::occi::OCCI_SQLT_TIMESTAMP:
case oracle::occi::OCCI_SQLT_TIMESTAMP_LTZ:
case oracle::occi::OCCI_SQLT_TIMESTAMP_TZ:
//.........这里部分代码省略.........
示例2: bind
void occi_datasource::bind() const
{
if (is_bound_) return;
#ifdef MAPNIK_STATS
mapnik::progress_timer __stats__(std::clog, "occi_datasource::bind");
#endif
// connect to environment
if (use_connection_pool_)
{
try
{
Environment* env = occi_environment::get_environment();
pool_ = env->createStatelessConnectionPool(
*params_.get<std::string>("user"),
*params_.get<std::string>("password"),
*params_.get<std::string>("host"),
*params_.get<int>("max_size", 5),
*params_.get<int>("initial_size", 1),
1,
StatelessConnectionPool::HOMOGENEOUS);
}
catch (SQLException& ex)
{
throw datasource_exception("OCCI Plugin: " + ex.getMessage());
}
}
else
{
try
{
Environment* env = occi_environment::get_environment();
conn_ = env->createConnection(
*params_.get<std::string>("user"),
*params_.get<std::string>("password"),
*params_.get<std::string>("host"));
}
catch (SQLException& ex)
{
throw datasource_exception("OCCI Plugin: " + ex.getMessage());
}
}
// extract real table name
table_name_ = mapnik::sql_utils::table_from_sql(table_);
// get SRID and/or GEOMETRY_FIELD from metadata table only if we need to
if (! srid_initialized_ || geometry_field_ == "")
{
#ifdef MAPNIK_STATS
mapnik::progress_timer __stats__(std::clog, "occi_datasource::get_srid_and_geometry_field");
#endif
std::ostringstream s;
s << "SELECT srid, column_name FROM " << METADATA_TABLE << " WHERE";
s << " LOWER(table_name) = LOWER('" << table_name_ << "')";
if (geometry_field_ != "")
{
s << " AND LOWER(column_name) = LOWER('" << geometry_field_ << "')";
}
MAPNIK_LOG_DEBUG(occi) << "occi_datasource: " << s.str();
try
{
occi_connection_ptr conn;
if (use_connection_pool_) conn.set_pool(pool_);
else conn.set_connection(conn_, false);
ResultSet* rs = conn.execute_query(s.str());
if (rs && rs->next ())
{
if (! srid_initialized_)
{
srid_ = rs->getInt(1);
srid_initialized_ = true;
}
if (geometry_field_ == "")
{
geometry_field_ = rs->getString(2);
}
}
}
catch (SQLException& ex)
{
throw datasource_exception("OCCI Plugin: " + ex.getMessage());
}
}
// get columns description
{
#ifdef MAPNIK_STATS
mapnik::progress_timer __stats__(std::clog, "occi_datasource::get_column_description");
#endif
//.........这里部分代码省略.........
示例3: __stats__
//.........这里部分代码省略.........
{
#ifdef MAPNIK_STATS
mapnik::progress_timer __stats__(std::clog, "occi_datasource::get_srid_and_geometry_field");
#endif
std::ostringstream s;
s << "SELECT srid, column_name FROM " << METADATA_TABLE << " WHERE";
s << " LOWER(table_name) = LOWER('" << table_name_ << "')";
if (geometry_field_ != "")
{
s << " AND LOWER(column_name) = LOWER('" << geometry_field_ << "')";
}
MAPNIK_LOG_DEBUG(occi) << "occi_datasource: " << s.str();
try
{
occi_connection_ptr conn;
if (use_connection_pool_) conn.set_pool(pool_);
else conn.set_connection(conn_, false);
ResultSet* rs = conn.execute_query(s.str());
if (rs && rs->next ())
{
if (! srid_initialized_)
{
srid_ = rs->getInt(1);
srid_initialized_ = true;
}
if (geometry_field_ == "")
{
geometry_field_ = rs->getString(2);
}
}
}
catch (SQLException& ex)
{
throw datasource_exception("OCCI Plugin: " + ex.getMessage());
}
}
// get columns description
{
#ifdef MAPNIK_STATS
mapnik::progress_timer __stats__(std::clog, "occi_datasource::get_column_description");
#endif
std::ostringstream s;
s << "SELECT " << fields_ << " FROM (" << table_name_ << ") WHERE ROWNUM < 1";
MAPNIK_LOG_DEBUG(occi) << "occi_datasource: " << s.str();
try
{
occi_connection_ptr conn;
if (use_connection_pool_) conn.set_pool(pool_);
else conn.set_connection(conn_, false);
ResultSet* rs = conn.execute_query(s.str());
if (rs)
{
std::vector<MetaData> listOfColumns = rs->getColumnListMetaData();
for (unsigned int i = 0; i < listOfColumns.size(); ++i)