greenplumn CDXLPhysicalProperties 源码
greenplumn CDXLPhysicalProperties 代码
文件路径：/src/backend/gporca/libnaucrates/src/operators/CDXLPhysicalProperties.cpp
//---------------------------------------------------------------------------
// Greenplum Database
// Copyright (C) 2010 Greenplum, Inc.
//
// @filename:
// CDXLPhysicalProperties.cpp
//
// @doc:
// Implementation of DXL physical operators
//---------------------------------------------------------------------------
#include "naucrates/dxl/operators/CDXLPhysicalProperties.h"
#include "naucrates/dxl/xml/CXMLSerializer.h"
using namespace gpdxl;
//---------------------------------------------------------------------------
// @function:
// CDXLPhysicalProperties::CDXLPhysicalProperties
//
// @doc:
// Constructor
//
//---------------------------------------------------------------------------
CDXLPhysicalProperties::CDXLPhysicalProperties(CDXLOperatorCost *cost)
: CDXLProperties(), m_operator_cost_dxl(cost)
{
}
//---------------------------------------------------------------------------
// @function:
// CDXLPhysicalProperties::~CDXLPhysicalProperties
//
// @doc:
// Destructor
//
//---------------------------------------------------------------------------
CDXLPhysicalProperties::~CDXLPhysicalProperties()
{
CRefCount::SafeRelease(m_operator_cost_dxl);
}
//---------------------------------------------------------------------------
// @function:
// CDXLPhysicalProperties::SerializePropertiesToDXL
//
// @doc:
// Serialize operator properties in DXL format
//
//---------------------------------------------------------------------------
void
CDXLPhysicalProperties::SerializePropertiesToDXL(
CXMLSerializer *xml_serializer) const
{
xml_serializer->OpenElement(
CDXLTokens::GetDXLTokenStr(EdxltokenNamespacePrefix),
CDXLTokens::GetDXLTokenStr(EdxltokenProperties));
m_operator_cost_dxl->SerializeToDXL(xml_serializer);
SerializeStatsToDXL(xml_serializer);
xml_serializer->CloseElement(
CDXLTokens::GetDXLTokenStr(EdxltokenNamespacePrefix),
CDXLTokens::GetDXLTokenStr(EdxltokenProperties));
}
//---------------------------------------------------------------------------
// @function:
// CDXLPhysicalProperties::MakeDXLOperatorCost
//
// @doc:
// Return cost of operator
//
//---------------------------------------------------------------------------
CDXLOperatorCost *
CDXLPhysicalProperties::GetDXLOperatorCost() const
{
return m_operator_cost_dxl;
}
// EOF
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