greenplumn CDXLPhysicalRowTrigger 源码
greenplumn CDXLPhysicalRowTrigger 代码
文件路径：/src/backend/gporca/libnaucrates/include/naucrates/dxl/operators/CDXLPhysicalRowTrigger.h
//---------------------------------------------------------------------------
// Greenplum Database
// Copyright (C) 2012 EMC Corp.
//
// @filename:
// CDXLPhysicalRowTrigger.h
//
// @doc:
// Class for representing physical row trigger operator
//---------------------------------------------------------------------------
#ifndef GPDXL_CDXLPhysicalRowTrigger_H
#define GPDXL_CDXLPhysicalRowTrigger_H
#include "gpos/base.h"
#include "gpos/common/CDynamicPtrArray.h"
#include "naucrates/dxl/operators/CDXLPhysical.h"
#include "naucrates/md/IMDId.h"
using gpmd::IMDId;
namespace gpdxl
{
//---------------------------------------------------------------------------
// @class:
// CDXLPhysicalRowTrigger
//
// @doc:
// Class for representing physical row trigger operators
//
//---------------------------------------------------------------------------
class CDXLPhysicalRowTrigger : public CDXLPhysical
{
private:
// relation id on which triggers are to be executed
IMDId *m_rel_mdid;
// trigger type
INT m_type;
// old column ids
ULongPtrArray *m_colids_old;
// new column ids
ULongPtrArray *m_colids_new;
public:
CDXLPhysicalRowTrigger(const CDXLPhysicalRowTrigger &) = delete;
// ctor
CDXLPhysicalRowTrigger(CMemoryPool *mp, IMDId *rel_mdid, INT type,
ULongPtrArray *colids_old,
ULongPtrArray *colids_new);
// dtor
~CDXLPhysicalRowTrigger() override;
// operator type
Edxlopid GetDXLOperator() const override;
// operator name
const CWStringConst *GetOpNameStr() const override;
// relation id
IMDId *
GetRelMdId() const
{
return m_rel_mdid;
}
// trigger type
INT
GetType() const
{
return m_type;
}
// old column ids
ULongPtrArray *
GetColIdsOld() const
{
return m_colids_old;
}
// new column ids
ULongPtrArray *
GetColIdsNew() const
{
return m_colids_new;
}
#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
// serialize operator in DXL format
void SerializeToDXL(CXMLSerializer *xml_serializer,
const CDXLNode *dxlnode) const override;
// conversion function
static CDXLPhysicalRowTrigger *
Cast(CDXLOperator *dxl_op)
{
GPOS_ASSERT(nullptr != dxl_op);
GPOS_ASSERT(EdxlopPhysicalRowTrigger == dxl_op->GetDXLOperator());
return dynamic_cast<CDXLPhysicalRowTrigger *>(dxl_op);
}
};
} // namespace gpdxl
#endif // !GPDXL_CDXLPhysicalRowTrigger_H
// EOF
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