/*
 * 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.    
 */
#ifndef RELATIONSHIP_H
#define RELATIONSHIP_H

#include <string>
#include <map>

#include "apache/das/rdb/KeyPair.h"
#include "apache/das/rdb/ConfigImpl.h"
#include "apache/das/rdb/DASInvalidTableNameException.h"
#include "apache/das/rdb/DASInvalidRelationshipNameException.h"

namespace apache {
	namespace das {
		namespace rdb {

class Relationship {

	friend class ConfigImpl;

	private:
		std::string relationshipName;
		std::string pkTableName;
		std::string fkTableName;
		bool many;
		std::map<std::string, const KeyPair*>* keyPairs;

		KeyPair& newKeyPair(KeyPair& keyPair);

		
	public:
		Relationship(const Relationship& relationship);
		Relationship(std::string pkTableName, std::string fkTableName, std::string relationshipName = "");
		virtual ~Relationship(void);

		KeyPair& addKeyPair(std::string pkColumnName, std::string fkColumnName);
		KeyPair& addKeyPair(const KeyPair& keyPair);
		void setMany(bool many);

		std::string getPKTableName(void) const;
		std::string getFKTableName(void) const;
		std::string getName(void) const;
		bool isMany(void) const;

		const std::map<std::string, const KeyPair*>& getKeyPairs(void) const;
		const KeyPair* getKeyPair(std::string pkColumnName, std::string fkColumnName) const;
		std::list<const KeyPair*>* getKeyPair(std::string columnName, bool pkColumn = true) const;
		bool containsColumn(std::string columnName, bool pkColumn = true) const;
		
};

		};
	};
};

#endif //RELATIONSHIP_H