greenplumn CParseHandlerMDIndex 源码
greenplumn CParseHandlerMDIndex 代码
文件路径：/src/backend/gporca/libnaucrates/include/naucrates/dxl/parser/CParseHandlerMDIndex.h
//---------------------------------------------------------------------------
// Greenplum Database
// Copyright (C) 2012 EMC Corp.
//
// @filename:
// CParseHandlerMDIndex.h
//
// @doc:
// SAX parse handler class for parsing an MD index
//---------------------------------------------------------------------------
#ifndef GPDXL_CParseHandlerMDIndex_H
#define GPDXL_CParseHandlerMDIndex_H
#include "gpos/base.h"
#include "naucrates/dxl/parser/CParseHandlerMetadataObject.h"
#include "naucrates/md/CMDPartConstraintGPDB.h"
#include "naucrates/md/IMDIndex.h"
namespace gpdxl
{
using namespace gpos;
using namespace gpmd;
using namespace gpnaucrates;
XERCES_CPP_NAMESPACE_USE
//---------------------------------------------------------------------------
// @class:
// CParseHandlerMDIndex
//
// @doc:
// Parse handler class for parsing an MD index
//
//---------------------------------------------------------------------------
class CParseHandlerMDIndex : public CParseHandlerMetadataObject
{
private:
// mdid of the index
IMDId *m_mdid;
// name of the index
CMDName *m_mdname;
// is the index clustered
BOOL m_clustered;
// index type
IMDIndex::EmdindexType m_index_type;
// type id of index items
// for instance, for bitmap indexes, this is the type id of the bitmap
IMDId *m_mdid_item_type;
// index keys
ULongPtrArray *m_index_key_cols_array;
// included columns
ULongPtrArray *m_included_cols_array;
// index part constraint
CMDPartConstraintGPDB *m_part_constraint;
// levels that include default partitions
ULongPtrArray *m_level_with_default_part_array;
// is constraint unbounded
BOOL m_part_constraint_unbounded;
// child index oids parse handler
CParseHandlerBase *m_child_indexes_parse_handler;
// 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:
CParseHandlerMDIndex(const CParseHandlerMDIndex &) = delete;
// ctor
CParseHandlerMDIndex(CMemoryPool *mp,
CParseHandlerManager *parse_handler_mgr,
CParseHandlerBase *parse_handler_root);
};
} // namespace gpdxl
#endif // !GPDXL_CParseHandlerMDIndex_H
// EOF
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