H2DatabaseEventListener.java

/**
 * OrbisGIS is a java GIS application dedicated to research in GIScience.
 * OrbisGIS is developed by the GIS group of the DECIDE team of the 
 * Lab-STICC CNRS laboratory, see <http://www.lab-sticc.fr/>.
 *
 * The GIS group of the DECIDE team is located at :
 *
 * Laboratoire Lab-STICC – CNRS UMR 6285
 * Equipe DECIDE
 * UNIVERSITÉ DE BRETAGNE-SUD
 * Institut Universitaire de Technologie de Vannes
 * 8, Rue Montaigne - BP 561 56017 Vannes Cedex
 * 
 * OrbisGIS is distributed under GPL 3 license.
 *
 * Copyright (C) 2007-2014 CNRS (IRSTV FR CNRS 2488)
 * Copyright (C) 2015-2017 CNRS (Lab-STICC UMR CNRS 6285)
 *
 * This file is part of OrbisGIS.
 *
 * OrbisGIS 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.
 *
 * OrbisGIS 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
 * OrbisGIS. If not, see <http://www.gnu.org/licenses/>.
 *
 * For more information, please consult: <http://www.orbisgis.org/>
 * or contact directly:
 * info_at_ orbisgis.org
 */
package org.orbisgis.h2triggers;

import org.h2.api.DatabaseEventListener;
import java.sql.SQLException;

/**
 * Link to H2 database in order to catch database events.
 * @author Nicolas Fortin
 */
public class H2DatabaseEventListener implements DatabaseEventListener {
    private static DatabaseEventListener delegateDatabaseEventListener;

    /**
     * @param delegateDatabaseEventListener DatabaseEventListener instance or null.
     */
    public static void setDelegateDatabaseEventListener(DatabaseEventListener delegateDatabaseEventListener) {
        H2DatabaseEventListener.delegateDatabaseEventListener = delegateDatabaseEventListener;
    }

    @Override
    public void init(String url) {
        DatabaseEventListener listener = delegateDatabaseEventListener;
        if(listener != null) {
            listener.init(url);
        }
    }

    @Override
    public void opened() {
        DatabaseEventListener listener = delegateDatabaseEventListener;
        if(listener != null) {
            listener.opened();
        }
    }

    @Override
    public void exceptionThrown(SQLException e, String sql) {
        DatabaseEventListener listener = delegateDatabaseEventListener;
        if(listener != null) {
            listener.exceptionThrown(e, sql);
        }
    }

    @Override
    public void setProgress(int state, String name, int x, int max) {
        DatabaseEventListener listener = delegateDatabaseEventListener;
        if(listener != null) {
            listener.setProgress(state, name, x, max);
        }
    }

    @Override
    public void closingDatabase() {
        DatabaseEventListener listener = delegateDatabaseEventListener;
        if(listener != null) {
            listener.closingDatabase();
        }
    }
}