001    /*
002     * Sonar, open source software quality management tool.
003     * Copyright (C) 2009 SonarSource SA
004     * mailto:contact AT sonarsource DOT com
005     *
006     * Sonar is free software; you can redistribute it and/or
007     * modify it under the terms of the GNU Lesser General Public
008     * License as published by the Free Software Foundation; either
009     * version 3 of the License, or (at your option) any later version.
010     *
011     * Sonar is distributed in the hope that it will be useful,
012     * but WITHOUT ANY WARRANTY; without even the implied warranty of
013     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014     * Lesser General Public License for more details.
015     *
016     * You should have received a copy of the GNU Lesser General Public
017     * License along with Sonar; if not, write to the Free Software
018     * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02
019     */
020    package org.sonar.api.batch;
021    
022    import org.sonar.api.BatchExtension;
023    
024    /**
025     * Extension point to purge data.
026     * <p/>
027     * <p>It is executed when the batch finishes.
028     *
029     * @since 1.10
030     */
031    public interface Purge extends BatchExtension {
032    
033      /**
034       * Snapshots include the current snapshot (flagged as last) and optionally the penultimate one.
035       *
036       * @snapshots never null.
037       */
038      void purge(PurgeContext context);
039    
040    }