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.BatchComponent;
023    import org.sonar.api.measures.Measure;
024    
025    import java.util.List;
026    
027    /**
028     * The TimeMachine extension point
029     *
030     * @since 1.10
031     */
032    public interface TimeMachine extends BatchComponent {
033    
034      /**
035       * Past measures, sorted by date. Returns all fields.
036       * <p/>
037       * <p>Measures of current analysis are not included.</p>
038       */
039      List<Measure> getMeasures(TimeMachineQuery query);
040    
041      /**
042       * Past measures sorted by date. Return only a subset of basic fields : [date (java.util.Date), metric (org.sonar.api.measures.Metric), value (Double)].
043       * <p/>
044       * <p>Measures of current analysis are not included.</p>
045       * <p>This method is recommended instead of getMeasures() for performance reasons. It needs less memory.</p>
046       */
047      List<Object[]> getMeasuresFields(TimeMachineQuery query);
048    
049    }