greenplumn CDXLPhysicalAssert 代码
文件路径：/src/backend/gporca/libnaucrates/include/naucrates/dxl/operators/CDXLPhysicalAssert.h
/---------------------------------------------------------------------------
/ Greenplum Database
/ Copyright (C) 2012 EMC Corp.
/
/ @filename:
/ CDXLPhysicalAssert.h
/
/ @doc:
/ Class for representing DXL physical assert operators
/---------------------------------------------------------------------------
#ifndef GPDXL_CDXLPhysicalAssert_H
#define GPDXL_CDXLPhysicalAssert_H
#include "gpos/base.h"
#include "naucrates/dxl/errorcodes.h"
#include "naucrates/dxl/operators/CDXLPhysical.h"
namespace gpdxl
{
/---------------------------------------------------------------------------
/ @class:
/ CDXLPhysicalAssert
/
/ @doc:
/ Class for representing DXL assert operators
/
/---------------------------------------------------------------------------
class CDXLPhysicalAssert : public CDXLPhysical
{
public:
/ indices of assert elements in the children array
enum Edxlassert
{
EdxlassertIndexProjList = 0,
EdxlassertIndexFilter,
EdxlassertIndexChild,
EdxlassertIndexSentinel
};
private:
/ error code
CHAR m_sql_state[GPOS_SQLSTATE_LENGTH + 1];
public:
CDXLPhysicalAssert(CDXLPhysicalAssert &) = delete;
/ ctor
CDXLPhysicalAssert(CMemoryPool *mp, const CHAR *sql_state);
/ dtor
~CDXLPhysicalAssert() override;
/ operator type
Edxlopid GetDXLOperator() const override;
/ operator name
const CWStringConst *GetOpNameStr() const override;
/ error code
const CHAR *
GetSQLState() const
{
return m_sql_state;
}
/ serialize operator in DXL format
void SerializeToDXL(CXMLSerializer *xml_serializer,
const CDXLNode *dxlnode) const override;
#ifdef GPOS_DEBUG
/ checks whether the operator has valid structure, i.e. number and
/ types of child nodes
void AssertValid(const CDXLNode *dxlnode,
BOOL validate_children) const override;
#endif / GPOS_DEBUG
/ conversion function
static CDXLPhysicalAssert *
Cast(CDXLOperator *dxl_op)
{
GPOS_ASSERT(nullptr != dxl_op);
GPOS_ASSERT(EdxlopPhysicalAssert == dxl_op->GetDXLOperator());
return dynamic_cast<CDXLPhysicalAssert *>(dxl_op);
}
};
} / namespace gpdxl
#endif / !GPDXL_CDXLPhysicalAssert_H
/ EOF
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