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