cli@42: /*
cli@42:  *   SONEWS News Server
cli@42:  *   see AUTHORS for the list of contributors
cli@42:  *
cli@42:  *   This program is free software: you can redistribute it and/or modify
cli@42:  *   it under the terms of the GNU General Public License as published by
cli@42:  *   the Free Software Foundation, either version 3 of the License, or
cli@42:  *   (at your option) any later version.
cli@42:  *
cli@42:  *   This program is distributed in the hope that it will be useful,
cli@42:  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
cli@42:  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
cli@42:  *   GNU General Public License for more details.
cli@42:  *
cli@42:  *   You should have received a copy of the GNU General Public License
cli@42:  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
cli@42:  */
cli@42: package org.sonews.storage.impl;
cli@42: 
cli@45: import java.sql.SQLException;
cli@45: import org.sonews.storage.Channel;
cli@42: import org.sonews.storage.Storage;
cli@45: import org.sonews.storage.StorageBackendException;
cli@42: 
cli@42: /**
cli@44:  * A specialized JDBCDatabase supporting HSQLDB.
cli@42:  * @author Christian Lins
cli@42:  * @since sonews/1.1
cli@42:  */
cli@44: public class HSQLDB extends JDBCDatabase implements Storage {
cli@42: 
cli@45: 	@Override
cli@45: 	protected void prepareAddGroupStatement() throws SQLException {
cli@45: 		this.pstmtAddGroup0 = conn.prepareStatement(
cli@45: 				"INSERT INTO groups (name, flags, group_id) VALUES (?, ?, IDENTITY())");
cli@45: 	}
cli@42: 
cli@45: 	@Override
cli@45: 	protected void prepareCountGroupsStatement() throws SQLException {
cli@45: 		this.pstmtCountGroups = conn.prepareStatement(
cli@45: 				"SELECT Count(group_id) FROM groups WHERE "
cli@45: 				+ "BITAND(flags, " + Channel.DELETED + ") = 0");
cli@45: 	}
cli@45: 
cli@45: 	@Override
cli@45: 	protected void prepareGetPostingsCountStatement() throws SQLException {
cli@45: 		this.pstmtGetPostingsCount = conn.prepareStatement(
cli@45: 				"SELECT Count(*) FROM postings JOIN groups "
cli@45: 				+ "ON groups.name = ? GROUP BY groups.name");
cli@45: 	}
cli@45: 
cli@45: 	@Override
cli@45: 	protected void prepareGetSubscriptionsStatement() throws SQLException {
cli@45: 		this.pstmtGetSubscriptions = conn.prepareStatement(
cli@45: 				"SELECT * FROM (SELECT feedtype, host, port, peer_id FROM peers JOIN "
cli@45: 				+ "peer_subscriptions ON peers.peer_id = peer_subscriptions.peer_id) "
cli@45: 				+ "JOIN groups ON group_id = groups.group_id WHERE feedtype = ?");
cli@45: 	}
cli@42: }