/* This file is part of VoltDB.
* Copyright (C) 2008-2017 VoltDB Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with VoltDB. If not, see <http://www.gnu.org/licenses/>.
*/
package org.voltdb.utils;
import java.util.Map;
import java.util.concurrent.ExecutionException;
import org.voltdb.VoltType;
import org.voltdb.client.NoConnectionsException;
/**
* The interface CSVLoader uses to insert rows into the database.
*/
public interface CSVDataLoader {
/**
* @return The column types of the table or the procedure that will be used by this loader.
*/
public VoltType[] getColumnTypes();
/**
* Insert a single row.
*
* @param metaData The metadata of the line in the CSV file, can be used to generate error
* messages.
* @param values The values to insert.
* @throws InterruptedException
*/
public void insertRow(RowWithMetaData metaData, Object[] values) throws InterruptedException;
/**
* Close the loader.
* @throws InterruptedException
* @throws NoConnectionsException
*/
public void close() throws Exception;
/**
* @return The number of rows processed, including successfully inserted and failed ones.
*/
public long getProcessedRows();
/**
* @return The number of rows failed to be inserted.
*/
public long getFailedRows();
public void setFlushInterval(int delay, int seconds);
/**
* Flush use this only when you think you are done and want to push everything before close/quit.
*/
public void flush() throws ExecutionException, InterruptedException;
public Map<Integer, String> getColumnNames();
}