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Importer high-performance multi-threaded initial data load into Neo4j from CSV/SQL with custom logic

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/*
 * Copyright (c) 2013-2016 GraphAware
 *
 * This file is part of the GraphAware Framework.
 *
 * GraphAware Framework 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, 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 General Public License for more details. You should have received a copy of the
 * GNU General Public License along with this program.  If not, see .
 */

package com.graphaware.importer.data.access;

/**
 * A data writer.
 */
public interface DataWriter extends DataAccess {

    /**
     * Append a string to the writer.
     *
     * @param s to append. Must not be null.
     * @return this instance.
     */
    DataWriter append(String s);
}