greenplumn CParseHandlerScalarSubPlan 代码
文件路径：/src/backend/gporca/libnaucrates/include/naucrates/dxl/parser/CParseHandlerScalarSubPlan.h
/---------------------------------------------------------------------------
/ Greenplum Database
/ Copyright (C) 2012 EMC Corp.
/
/ @filename:
/ CParseHandlerScalarSubPlan.h
/
/ @doc:
/
/ SAX parse handler class for parsing SubPlan.
/---------------------------------------------------------------------------
#ifndef GPDXL_CParseHandlerScalarSubPlan_H
#define GPDXL_CParseHandlerScalarSubPlan_H
#include "gpos/base.h"
#include "naucrates/dxl/operators/CDXLScalarSubPlan.h"
#include "naucrates/dxl/parser/CParseHandlerScalarOp.h"
namespace gpdxl
{
using namespace gpos;
XERCES_CPP_NAMESPACE_USE
/---------------------------------------------------------------------------
/ @class:
/ CParseHandlerScalarSubPlan
/
/ @doc:
/ Parse handler for parsing a scalar SubPlan
/
/---------------------------------------------------------------------------
class CParseHandlerScalarSubPlan : public CParseHandlerScalarOp
{
private:
/ first col type
IMDId *m_mdid_first_col;
/ subplan type
EdxlSubPlanType m_dxl_subplan_type;
/ map character sequence to subplan type
static EdxlSubPlanType GetDXLSubplanType(const XMLCh *xml_subplan_type);
/ process the start of an element
void StartElement(
const XMLCh *const element_uri, / URI of element's namespace
const XMLCh *const element_local_name, / local part of element's name
const XMLCh *const element_qname, / element's qname
const Attributes &attr / element's attributes
) override;
/ process the end of an element
void EndElement(
const XMLCh *const element_uri, / URI of element's namespace
const XMLCh *const element_local_name, / local part of element's name
const XMLCh *const element_qname / element's qname
) override;
public:
CParseHandlerScalarSubPlan(const CParseHandlerScalarSubPlan &) = delete;
/ ctor
CParseHandlerScalarSubPlan(CMemoryPool *mp,
CParseHandlerManager *parse_handler_mgr,
CParseHandlerBase *parse_handler_root);
};
} / namespace gpdxl
#endif / GPDXL_CParseHandlerScalarSubPlan_H
/EOF
相关信息
相关文章
greenplumn CParseHandlerAgg 源码
greenplumn CParseHandlerAppend 源码
greenplumn CParseHandlerArray 源码
greenplumn CParseHandlerAssert 源码
greenplumn CParseHandlerBase 源码
greenplumn CParseHandlerBroadcastMotion 源码
greenplumn CParseHandlerCTEConfig 源码
greenplumn CParseHandlerCTEList 源码