greenplumn CParseHandlerOptimizerConfig 源码
greenplumn CParseHandlerOptimizerConfig 代码
文件路径：/src/backend/gporca/libnaucrates/include/naucrates/dxl/parser/CParseHandlerOptimizerConfig.h
//---------------------------------------------------------------------------
// Greenplum Database
// Copyright (C) 2013 EMC Corp.
//
// @filename:
// CParseHandlerOptimizerConfig.h
//
// @doc:
// SAX parse handler class for parsing optimizer config options
//---------------------------------------------------------------------------
#ifndef GPDXL_CParseHandlerOptimizerConfig_H
#define GPDXL_CParseHandlerOptimizerConfig_H
#include "gpos/base.h"
#include "naucrates/dxl/parser/CParseHandlerBase.h"
// fwd decl
namespace gpos
{
class CBitSet;
}
namespace gpdxl
{
using namespace gpos;
XERCES_CPP_NAMESPACE_USE
//---------------------------------------------------------------------------
// @class:
// CParseHandlerOptimizerConfig
//
// @doc:
// SAX parse handler class for parsing optimizer config options
//
//---------------------------------------------------------------------------
class CParseHandlerOptimizerConfig : public CParseHandlerBase
{
private:
// trace flag bitset
CBitSet *m_pbs;
// optimizer configuration
COptimizerConfig *m_optimizer_config;
// 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:
CParseHandlerOptimizerConfig(const CParseHandlerOptimizerConfig &) = delete;
// ctor/dtor
CParseHandlerOptimizerConfig(CMemoryPool *mp,
CParseHandlerManager *parse_handler_mgr,
CParseHandlerBase *parse_handler_root);
~CParseHandlerOptimizerConfig() override;
// type of the parse handler
EDxlParseHandlerType GetParseHandlerType() const override;
// trace flags
CBitSet *Pbs() const;
// optimizer config
COptimizerConfig *GetOptimizerConfig() const;
};
} // namespace gpdxl
#endif // !GPDXL_CParseHandlerOptimizerConfig_H
// EOF
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