src/include/gpopt/translate/CMappingElementColIdParamId.h

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

//---------------------------------------------------------------------------
//	@filename:
//		CMappingElementColIdParamId.h
//
//	@doc:
//		Wrapper class providing functions for the mapping element between ColId
//		and ParamId during DXL->PlStmt translation
//
//	@test:
//
//
//---------------------------------------------------------------------------
#ifndef GPDXL_CMappingElementColIdParamId_H
#define GPDXL_CMappingElementColIdParamId_H

#include "gpos/base.h"

#include "naucrates/dxl/operators/CDXLNode.h"
#include "naucrates/md/IMDId.h"

namespace gpdxl
{
	using namespace gpos;
	using namespace gpmd;
	//---------------------------------------------------------------------------
	//	@class:
	//		CMappingElementColIdParamId
	//
	//	@doc:
	//		Wrapper class providing functions for the mapping element between
	//		ColId and ParamId during DXL->PlStmt translation
	//
	//---------------------------------------------------------------------------
	class CMappingElementColIdParamId : public CRefCount
	{
		private:

			// column identifier that is used as the key
			ULONG m_ulColId;

			// param identifier
			ULONG m_ulParamId;

			// param type
			IMDId *m_pmdid;

		public:

			// ctors and dtor
			CMappingElementColIdParamId(ULONG ulColId, ULONG ulParamId, IMDId *pmdid);

			virtual
			~CMappingElementColIdParamId()
			{}

			// return the ColId
			ULONG UlColId() const
			{
				return m_ulColId;
			}

			// return the ParamId
			ULONG UlParamId() const
			{
				return m_ulParamId;
			}

			// return the type
			IMDId *PmdidType() const
			{
				return m_pmdid;
			}
	};
}

#endif // GPDXL_CMappingElementColIdParamId_H

// EOF