greenplumn CDXLDatumInt2 源码
greenplumn CDXLDatumInt2 代码
文件路径：/src/backend/gporca/libnaucrates/include/naucrates/dxl/operators/CDXLDatumInt2.h
//---------------------------------------------------------------------------
// Greenplum Database
// Copyright (C) 2014 VMware, Inc. or its affiliates.
//
// @filename:
// CDXLDatumInt2.h
//
// @doc:
// Class for representing DXL short integer datum
//
// @owner:
//
//
// @test:
//
//---------------------------------------------------------------------------
#ifndef GPDXL_CDXLDatumInt2_H
#define GPDXL_CDXLDatumInt2_H
#include "gpos/base.h"
#include "naucrates/dxl/operators/CDXLDatum.h"
namespace gpdxl
{
using namespace gpos;
// fwd decl
class CXMLSerializer;
//---------------------------------------------------------------------------
// @class:
// CDXLDatumInt2
//
// @doc:
// Class for representing DXL short integer datums
//
//---------------------------------------------------------------------------
class CDXLDatumInt2 : public CDXLDatum
{
private:
// int2 value
SINT m_val;
public:
CDXLDatumInt2(const CDXLDatumInt2 &) = delete;
// ctor
CDXLDatumInt2(CMemoryPool *mp, IMDId *mdid_type, BOOL is_null, SINT val);
// dtor
~CDXLDatumInt2() override = default;
// accessor of int value
SINT Value() const;
// serialize the datum as the given element
void Serialize(CXMLSerializer *xml_serializer) override;
// datum type
EdxldatumType
GetDatumType() const override
{
return CDXLDatum::EdxldatumInt2;
}
// conversion function
static CDXLDatumInt2 *
Cast(CDXLDatum *dxl_datum)
{
GPOS_ASSERT(nullptr != dxl_datum);
GPOS_ASSERT(CDXLDatum::EdxldatumInt2 == dxl_datum->GetDatumType());
return dynamic_cast<CDXLDatumInt2 *>(dxl_datum);
}
};
} // namespace gpdxl
#endif // !GPDXL_CDXLDatumInt2_H
// EOF
相关信息
相关文章
greenplumn CDXLCtasStorageOptions 源码
0
赞
热门推荐
-
2、 - 优质文章
-
3、 gate.io
-
8、 golang
-
9、 openharmony
-
10、 Vue中input框自动聚焦