EmptyMongoCursor.java

/*******************************************************************************
 * Copyright French Prime minister Office/SGMAP/DINSIC/Vitam Program (2015-2019)
 *
 * contact.vitam@culture.gouv.fr
 *
 * This software is a computer program whose purpose is to implement a digital archiving back-office system managing
 * high volumetry securely and efficiently.
 *
 * This software is governed by the CeCILL 2.1 license under French law and abiding by the rules of distribution of free
 * software. You can use, modify and/ or redistribute the software under the terms of the CeCILL 2.1 license as
 * circulated by CEA, CNRS and INRIA at the following URL "http://www.cecill.info".
 *
 * As a counterpart to the access to the source code and rights to copy, modify and redistribute granted by the license,
 * users are provided only with a limited warranty and the software's author, the holder of the economic rights, and the
 * successive licensors have only limited liability.
 *
 * In this respect, the user's attention is drawn to the risks associated with loading, using, modifying and/or
 * developing or reproducing the software by the user in light of its specific status of free software, that may mean
 * that it is complicated to manipulate, and that also therefore means that it is reserved for developers and
 * experienced professionals having in-depth computer knowledge. Users are therefore encouraged to load and test the
 * software's suitability as regards their requirements in conditions enabling the security of their systems and/or data
 * to be ensured and, more generally, to use and operate it in the same conditions as regards security.
 *
 * The fact that you are presently reading this means that you have had knowledge of the CeCILL 2.1 license and that you
 * accept its terms.
 *******************************************************************************/
package fr.gouv.vitam.common.database.server.mongodb;

import com.mongodb.ServerAddress;
import com.mongodb.ServerCursor;
import com.mongodb.client.MongoCursor;

/**
 * Empty mongo cursor implementation to use in place of a real MongoCursor
 * 
 * @param <TResult> The type of documents the cursor is supposed to contains
 */
public class EmptyMongoCursor<TResult> implements MongoCursor<TResult> {

    public EmptyMongoCursor() {
        super();
    }

    @Override
    public void close() {
        // nothing to do
    }

    @Override
    public boolean hasNext() {
        return false;
    }

    @Override
    public TResult next() {
        return null;
    }

    @Override
    public TResult tryNext() {
        return null;
    }

    @Override
    public ServerCursor getServerCursor() {
        return null;
    }

    @Override
    public ServerAddress getServerAddress() {
        return null;
    }

}