I can't use REF to Database Object

Question

i use the following code to retrieve the Oracle Spatial SDO_GEOMETRY Object references:
string sel_geom = "SELECT REF(geom)
FROM addr_tab states";
ResultSet *rs = stmt->executeQuery(sel_geom);
rs->next();
Ref<SDOGeometry> geom_ref = rs->getRef(1);
i can retireve the GEOMETRY objects by useing:
string sel_geom = "SELECT geom
FROM addr_tab states";
ResultSet *rs = stmt->executeQuery(sel_geom);
rs->next();
SDOGeometry* geom = rs->getObject(1);
but when i use "delete geom" to free the object, its memories can not be free completely.
who can tell me what can i do?
thank you very much!
Bin

Answer 1

Yes, I use "stmt->closeResultSet(rs)" and "conn->terminateStatement(stmt)" to do that.
The classes.cpp like:
// generated method implementations for the SDO_GEOMETRY object type.
oracle::occi::Number SDOGeometry::getSdo_gtype() const
return SDO_GTYPE;
void SDOGeometry::setSdo_gtype(const oracle::occi::Number &value)
SDO_GTYPE = value;
oracle::occi::Number SDOGeometry::getSdo_srid() const
return SDO_SRID;
void SDOGeometry::setSdo_srid(const oracle::occi::Number &value)
SDO_SRID = value;
SDOPointType * SDOGeometry::getSdo_point() const
return SDO_POINT;
void SDOGeometry::setSdo_point(SDOPointType * value)
SDO_POINT = value;
OCCI_STD_NAMESPACE::vector< oracle::occi::Number >& SDOGeometry::getSdo_elem_info()
return SDO_ELEM_INFO;
const OCCI_STD_NAMESPACE::vector< oracle::occi::Number >& SDOGeometry::getSdo_elem_info() const
return SDO_ELEM_INFO;
void SDOGeometry::setSdo_elem_info(const OCCI_STD_NAMESPACE::vector< oracle::occi::Number > &value)
SDO_ELEM_INFO = value;
OCCI_STD_NAMESPACE::vector< oracle::occi::Number >& SDOGeometry::getSdo_ordinates()
return SDO_ORDINATES;
const OCCI_STD_NAMESPACE::vector< oracle::occi::Number >& SDOGeometry::getSdo_ordinates() const
return SDO_ORDINATES;
void SDOGeometry::setSdo_ordinates(const OCCI_STD_NAMESPACE::vector< oracle::occi::Number > &value)
SDO_ORDINATES = value;
void *SDOGeometry::operator new(size_t size)
return oracle::occi::PObject::operator new(size);
void SDOGeometry::operator new(size_t size, const oracle::occi::Connection sess,
const OCCI_STD_NAMESPACE::string& table)
return oracle::occi::PObject::operator new(size, sess, table,
(char *) "MDSYS.SDO_GEOMETRY");
void SDOGeometry::operator new(size_t size, void ctxOCCI_)
return oracle::occi::PObject::operator new(size, ctxOCCI_);
void *SDOGeometry::operator new(size_t size,
const oracle::occi::Connection *sess,
const OCCI_STD_NAMESPACE::string &tableName,
const OCCI_STD_NAMESPACE::string &typeName,
const OCCI_STD_NAMESPACE::string &tableSchema,
const OCCI_STD_NAMESPACE::string &typeSchema)
return oracle::occi::PObject::operator new(size, sess, tableName,
typeName, tableSchema, typeSchema);
OCCI_STD_NAMESPACE::string SDOGeometry::getSQLTypeName() const
return OCCI_STD_NAMESPACE::string("MDSYS.SDO_GEOMETRY");
void SDOGeometry::getSQLTypeName(oracle::occi::Environment env, void *schemaName,
unsigned int &schemaNameLen, void **typeName, unsigned int &typeNameLen) const
PObject::getSQLTypeName(env, &SDOGeometry::readSQL, schemaName,
schemaNameLen, typeName, typeNameLen);
SDOGeometry::SDOGeometry()
SDO_POINT = (SDOPointType *) 0;
void SDOGeometry::readSQL(void ctxOCCI_)
SDOGeometry *objOCCI_ = new(ctxOCCI_) SDOGeometry(ctxOCCI_);
oracle::occi::AnyData streamOCCI_(ctxOCCI_);
try
if (streamOCCI_.isNull())
objOCCI_->setNull();
else
objOCCI_->readSQL(streamOCCI_);
catch (oracle::occi::SQLException& excep)
delete objOCCI_;
excep.setErrorCtx(ctxOCCI_);
return (void *)NULL;
return (void *)objOCCI_;
void SDOGeometry::readSQL(oracle::occi::AnyData& streamOCCI_)
SDO_GTYPE = streamOCCI_.getNumber();
SDO_SRID = streamOCCI_.getNumber();
SDO_POINT = (SDOPointType *) streamOCCI_.getObject(&SDOPointType::readSQL);
oracle::occi::getVector(streamOCCI_, SDO_ELEM_INFO);
oracle::occi::getVector(streamOCCI_, SDO_ORDINATES);
void SDOGeometry::writeSQL(void objectOCCI_, void ctxOCCI_)
SDOGeometry objOCCI_ = (SDOGeometry ) objectOCCI_;
oracle::occi::AnyData streamOCCI_(ctxOCCI_);
try
if (objOCCI_->isNull())
streamOCCI_.setNull();
else
objOCCI_->writeSQL(streamOCCI_);
catch (oracle::occi::SQLException& excep)
excep.setErrorCtx(ctxOCCI_);
return;
void SDOGeometry::writeSQL(oracle::occi::AnyData& streamOCCI_)
streamOCCI_.setNumber(SDO_GTYPE);
streamOCCI_.setNumber(SDO_SRID);
streamOCCI_.setObject(SDO_POINT);
oracle::occi::setVector(streamOCCI_, SDO_ELEM_INFO);
oracle::occi::setVector(streamOCCI_, SDO_ORDINATES);
SDOGeometry::~SDOGeometry()
// I added the tow line codes but they can't free the mem
// and the performance is lower.
// SDO_ELEM_INFO.clear();
// SDO_ORDINATES.clear();
delete SDO_POINT;
I think it should be free the mem by delete the SDOGeometry object. I can free the POINT_TYPE SDOGeometry (that the SDO_ELEM_INFO and SDO_ORDINATES are both empty) completely. So I think the SDO_ELEM_INFO and SDO_ORDINATES arrays can't be freed by SDOGeometry class. As I said, I can free the "new SDOGeometry()" object by "delete operator".
Why?
thanks a lot.