mariadb-columnstore-engine/dbcon/joblist/command-jl.h

/* Copyright (C) 2014 InfiniDB, Inc.

   This program is free software; you can redistribute it and/or
   modify it under the terms of the GNU General Public License
   as published by the Free Software Foundation; version 2 of
   the License.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
   MA 02110-1301, USA. */

/** @file */

#ifndef COMMANDJL_H
#define COMMANDJL_H

#include <string>
#include <boost/uuid/uuid.hpp>

#include "serializeable.h"
#include "bytestream.h"

namespace joblist
{

class BatchPrimitiveProcessorJL;

class CommandJL
{
public:
    CommandJL();
    CommandJL(const CommandJL&);
    virtual ~CommandJL();

    // converts a rid or dictionary token to an LBID.  For ColumnCommandJL it's a RID,
    // for a DictStep it's a token.
    virtual void setLBID(uint64_t data, uint32_t dbroot) = 0;
    virtual uint8_t getTableColumnType() = 0;
    virtual std::string toString() = 0;
    virtual void createCommand(messageqcpp::ByteStream&) const;
    virtual void runCommand(messageqcpp::ByteStream&) const = 0;
    uint32_t getOID() const
    {
        return OID;
    }
    const std::string& getColName() const
    {
        return colName;
    }
    void setTupleKey(uint32_t tkey)
    {
        tupleKey = tkey;
    }
    uint32_t getTupleKey() const
    {
        return tupleKey;
    }
    virtual uint16_t getWidth() = 0;
    const boost::uuids::uuid& getQueryUuid() const
    {
        return queryUuid;
    }
    void setQueryUuid(const boost::uuids::uuid& u)
    {
        queryUuid = u;
    }
    const boost::uuids::uuid& getStepUuid() const
    {
        return stepUuid;
    }
    void setStepUuid(const boost::uuids::uuid& u)
    {
        stepUuid = u;
    }

    void setBatchPrimitiveProcessor(BatchPrimitiveProcessorJL* b)
    {
        bpp = b;
    }

    enum CommandType
    {
        NONE,
        COLUMN_COMMAND,
        DICT_STEP,
        DICT_SCAN,
        PASS_THRU,
        RID_TO_STRING,
        FILTER_COMMAND,
        PSEUDO_COLUMN
    };

    virtual CommandType getCommandType() = 0;

protected:
    BatchPrimitiveProcessorJL* bpp;
    uint32_t OID;
    uint32_t tupleKey;
    std::string colName;  // for stats
    boost::uuids::uuid queryUuid;
    boost::uuids::uuid stepUuid;

private:

};

typedef boost::shared_ptr<CommandJL> SCommand;

}

#endif