001/*
002 * HA-JDBC: High-Availability JDBC
003 * Copyright (C) 2012  Paul Ferraro
004 *
005 * This program is free software: you can redistribute it and/or modify
006 * it under the terms of the GNU Lesser General Public License as published by
007 * the Free Software Foundation, either version 3 of the License, or
008 * (at your option) any later version.
009 *
010 * This program is distributed in the hope that it will be useful,
011 * but WITHOUT ANY WARRANTY; without even the implied warranty of
012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
013 * GNU Lesser General Public License for more details.
014 *
015 * You should have received a copy of the GNU Lesser General Public License
016 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
017 */
018package net.sf.hajdbc.sync;
019
020import net.sf.hajdbc.Database;
021import net.sf.hajdbc.DatabaseCluster;
022import net.sf.hajdbc.SynchronizationStrategy;
023
024/**
025 * Work in progress...
026 * @author Paul Ferraro
027 */
028public class FastDifferentialSynchronizationStrategy implements SynchronizationStrategy
029{
030        private static final long serialVersionUID = 2556031934309008750L;
031
032        @Override
033        public String getId()
034        {
035                return "delta";
036        }
037
038        /**
039         * {@inheritDoc}
040         * @see net.sf.hajdbc.SynchronizationStrategy#init(net.sf.hajdbc.DatabaseCluster)
041         */
042        @Override
043        public <Z, D extends Database<Z>> void init(DatabaseCluster<Z, D> cluster)
044        {
045//              "UPDATE changes.table SET new_flag = $1 WHERE id = NEW.id;";
046//              "INSERT INTO changes.table (id, new_flag) SELECT NEW.id, $1 WHERE NOT EXISTS (SELECT 1 FROM changes.table WHERE id = NEW.id);";
047        }
048
049        /**
050         * {@inheritDoc}
051         * @see net.sf.hajdbc.SynchronizationStrategy#synchronize(net.sf.hajdbc.sync.SynchronizationContext)
052         */
053        @Override
054        public <Z, D extends Database<Z>> void synchronize(SynchronizationContext<Z, D> context)
055        {
056        }
057
058        /**
059         * {@inheritDoc}
060         * @see net.sf.hajdbc.SynchronizationStrategy#destroy(net.sf.hajdbc.DatabaseCluster)
061         */
062        @Override
063        public <Z, D extends Database<Z>> void destroy(DatabaseCluster<Z, D> cluster)
064        {
065        }
066}