greenplumn CParseHandlerScalarDMLAction 代码
文件路径：/src/backend/gporca/libnaucrates/src/parser/CParseHandlerScalarDMLAction.cpp
/---------------------------------------------------------------------------
/ Greenplum Database
/ Copyright (C) 2012 EMC Corp.
/
/ @filename:
/ CParseHandlerScalarDMLAction.cpp
/
/ @doc:
/ Implementation of the SAX parse handler class for parsing scalar
/ DML Action operators
/---------------------------------------------------------------------------
#include "naucrates/dxl/parser/CParseHandlerScalarDMLAction.h"
#include "naucrates/dxl/operators/CDXLOperatorFactory.h"
#include "naucrates/dxl/operators/CDXLScalarDMLAction.h"
#include "naucrates/dxl/parser/CParseHandlerFactory.h"
#include "naucrates/dxl/parser/CParseHandlerScalarOp.h"
using namespace gpdxl;
XERCES_CPP_NAMESPACE_USE
/---------------------------------------------------------------------------
/ @function:
/ CParseHandlerScalarDMLAction::CParseHandlerScalarDMLAction
/
/ @doc:
/ Ctor
/
/---------------------------------------------------------------------------
CParseHandlerScalarDMLAction::CParseHandlerScalarDMLAction(
CMemoryPool *mp, CParseHandlerManager *parse_handler_mgr,
CParseHandlerBase *parse_handler_root)
: CParseHandlerScalarOp(mp, parse_handler_mgr, parse_handler_root)
{
}
/---------------------------------------------------------------------------
/ @function:
/ CParseHandlerScalarDMLAction::StartElement
/
/ @doc:
/ Processes a Xerces start element event
/
/---------------------------------------------------------------------------
void
CParseHandlerScalarDMLAction::StartElement(
const XMLCh *const, / element_uri,
const XMLCh *const element_local_name,
const XMLCh *const, / element_qname
const Attributes & / attrs
)
{
if (0 != XMLString::compareString(
CDXLTokens::XmlstrToken(EdxltokenScalarDMLAction),
element_local_name))
{
CWStringDynamic *str = CDXLUtils::CreateDynamicStringFromXMLChArray(
m_parse_handler_mgr->GetDXLMemoryManager(), element_local_name);
GPOS_RAISE(gpdxl::ExmaDXL, gpdxl::ExmiDXLUnexpectedTag,
str->GetBuffer());
}
m_dxl_node =
GPOS_NEW(m_mp) CDXLNode(m_mp, GPOS_NEW(m_mp) CDXLScalarDMLAction(m_mp));
}
/---------------------------------------------------------------------------
/ @function:
/ CParseHandlerScalarDMLAction::EndElement
/
/ @doc:
/ Processes a Xerces end element event
/
/---------------------------------------------------------------------------
void
CParseHandlerScalarDMLAction::EndElement(const XMLCh *const, / element_uri,
const XMLCh *const element_local_name,
const XMLCh *const / element_qname
)
{
if (0 != XMLString::compareString(
CDXLTokens::XmlstrToken(EdxltokenScalarDMLAction),
element_local_name))
{
CWStringDynamic *str = CDXLUtils::CreateDynamicStringFromXMLChArray(
m_parse_handler_mgr->GetDXLMemoryManager(), element_local_name);
GPOS_RAISE(gpdxl::ExmaDXL, gpdxl::ExmiDXLUnexpectedTag,
str->GetBuffer());
}
m_parse_handler_mgr->DeactivateHandler();
}
/ EOF
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