greenplumn CParseHandlerDirectDispatchInfo 代码
文件路径：/src/backend/gporca/libnaucrates/include/naucrates/dxl/parser/CParseHandlerDirectDispatchInfo.h
/---------------------------------------------------------------------------
/ Greenplum Database
/ Copyright (C) 2013 VMware, Inc. or its affiliates.
/
/ @filename:
/ CParseHandlerDirectDispatchInfo.h
/
/ @doc:
/ SAX parse handler class for parsing the direct dispatch info
/---------------------------------------------------------------------------
#ifndef GPDXL_CParseHandlerDirectDispatchInfo_H
#define GPDXL_CParseHandlerDirectDispatchInfo_H
#include "gpos/base.h"
#include "naucrates/dxl/parser/CParseHandlerBase.h"
namespace gpdxl
{
using namespace gpos;
XERCES_CPP_NAMESPACE_USE
/ fwd decl
class CDXLDirectDispatchInfo;
/---------------------------------------------------------------------------
/ @class:
/ CParseHandlerDirectDispatchInfo
/
/ @doc:
/ Parse handler for direct dispatch info
/
/---------------------------------------------------------------------------
class CParseHandlerDirectDispatchInfo : public CParseHandlerBase
{
private:
/ current array of datums being parsed
CDXLDatumArray *m_dxl_datum_array;
/ array of datum combinations
CDXLDatum2dArray *m_datum_array_combination;
/ direct dispatch spec
CDXLDirectDispatchInfo *m_direct_dispatch_info;
/ true indicates m_dispatch_identifer_datum_array contains raw
/ gp_segment_id values rather than hashable datums
BOOL m_dispatch_is_raw;
/ 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:
CParseHandlerDirectDispatchInfo(const CParseHandlerDirectDispatchInfo &) =
delete;
/ ctor
CParseHandlerDirectDispatchInfo(CMemoryPool *mp,
CParseHandlerManager *parse_handler_mgr,
CParseHandlerBase *parse_handler_root);
/ dtor
~CParseHandlerDirectDispatchInfo() override;
/ accessor to the parsed direct dispatch spec
CDXLDirectDispatchInfo *GetDXLDirectDispatchInfo() const;
};
} / namespace gpdxl
#endif / !GPDXL_CParseHandlerDirectDispatchInfo_H
/ EOF
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