/*=============================================================================
# Filename: SPARQLquery.h
# Author: Bookug Lobert 
# Mail: 1181955272@qq.com
# Last Modified: 2015-10-31 19:13
# Description: originally written by liyouhuan, modified by chenjiaqi and zengli
=============================================================================*/

#ifndef _QUERY_SPARQLQUERY_H
#define _QUERY_SPARQLQUERY_H

#include "BasicQuery.h"

class SPARQLquery
{
private:
	vector<BasicQuery*> query_union;
	vector<string>	query_var;
public:
	SPARQLquery(const string& _query);

	SPARQLquery();
	~SPARQLquery();

	void addQueryVar(const string& _var);

	void addTriple(const Triple& _triple);

	void addBasicQuery(BasicQuery* _basic_q);

	void addBasicQuery();

	const int getBasicQueryNum();

	BasicQuery& getBasicQuery(int _basic_query_id);

	const int getQueryVarNum();

	const vector<string>& getQueryVar()const;

	const string& getQueryVar(int _id);

	void encodeQuery(KVstore* _p_kv_store);
	void encodeQuery(KVstore* _p_kv_store, vector< vector<string> > sparql_query_varset);

	vector<BasicQuery*>& getBasicQueryVec();

	void print(ostream& _out_stream);
	std::string triple_str();
	std::string candidate_str();
	std::string result_str();
	std::string to_str();
};

#endif //_QUERY_SPARQLQUERY_H