greenplumn CParseHandlerLogicalTVF 源码
greenplumn CParseHandlerLogicalTVF 代码
文件路径：/src/backend/gporca/libnaucrates/include/naucrates/dxl/parser/CParseHandlerLogicalTVF.h
//---------------------------------------------------------------------------
// Greenplum Database
// Copyright (C) 2012 EMC Corp.
//
// @filename:
// CParseHandlerLogicalTVF.h
//
// @doc:
//
// SAX parse handler class for parsing Logical TVF
//---------------------------------------------------------------------------
#ifndef GPDXL_CParseHandlerLogicalTVF_H
#define GPDXL_CParseHandlerLogicalTVF_H
#include "gpos/base.h"
#include "naucrates/dxl/parser/CParseHandlerLogicalOp.h"
namespace gpdxl
{
using namespace gpos;
XERCES_CPP_NAMESPACE_USE
//---------------------------------------------------------------------------
// @class:
// CParseHandlerLogicalTVF
//
// @doc:
// Parse handler for parsing a Logical TVF
//
//---------------------------------------------------------------------------
class CParseHandlerLogicalTVF : public CParseHandlerLogicalOp
{
private:
// catalog id of the function
IMDId *m_func_mdid;
// return type
IMDId *m_return_type_mdid;
// function name
CMDName *m_mdname;
// 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:
CParseHandlerLogicalTVF(const CParseHandlerLogicalTVF &) = delete;
// ctor
CParseHandlerLogicalTVF(CMemoryPool *mp,
CParseHandlerManager *parse_handler_mgr,
CParseHandlerBase *parse_handler_root);
};
} // namespace gpdxl
#endif // GPDXL_CParseHandlerLogicalTVF_H
// EOF
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