greenplumn CParseHandlerTraceFlags 源码
greenplumn CParseHandlerTraceFlags 代码
文件路径：/src/backend/gporca/libnaucrates/include/naucrates/dxl/parser/CParseHandlerTraceFlags.h
//---------------------------------------------------------------------------
// Greenplum Database
// Copyright (C) 2012 EMC Corp.
//
// @filename:
// CParseHandlerTraceFlags.h
//
// @doc:
// SAX parse handler class for parsing a set of traceflags
//---------------------------------------------------------------------------
#ifndef GPDXL_CParseHandlerTraceFlags_H
#define GPDXL_CParseHandlerTraceFlags_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:
// CParseHandlerTraceFlags
//
// @doc:
// SAX parse handler class for parsing the list of output segment indices in a
// redistribute motion node.
//
//---------------------------------------------------------------------------
class CParseHandlerTraceFlags : public CParseHandlerBase
{
private:
// trace flag bitset
CBitSet *m_trace_flags_bitset;
// 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:
CParseHandlerTraceFlags(const CParseHandlerTraceFlags &) = delete;
// ctor/dtor
CParseHandlerTraceFlags(CMemoryPool *mp,
CParseHandlerManager *parse_handler_mgr,
CParseHandlerBase *parse_handler_root);
~CParseHandlerTraceFlags() override;
// type of the parse handler
EDxlParseHandlerType GetParseHandlerType() const override;
// accessor
CBitSet *GetTraceFlagBitSet();
};
} // namespace gpdxl
#endif // !GPDXL_CParseHandlerTraceFlags_H
// EOF
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