1 files changed, 64 insertions, 0 deletions
diff --git a/src/de/lmu/ifi/dbs/elki/logging/statistics/Duration.java b/src/de/lmu/ifi/dbs/elki/logging/statistics/Duration.java
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index 00000000..24799408
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+++ b/src/de/lmu/ifi/dbs/elki/logging/statistics/Duration.java
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+package de.lmu.ifi.dbs.elki.logging.statistics;
+
+/*
+ This file is part of ELKI:
+ Environment for Developing KDD-Applications Supported by Index-Structures
+
+ Copyright (C) 2013
+ Ludwig-Maximilians-Universität München
+ Lehr- und Forschungseinheit für Datenbanksysteme
+ ELKI Development Team
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU Affero General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU Affero General Public License for more details.
+
+ You should have received a copy of the GNU Affero General Public License
+ along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/**
+ * Class that tracks the duration of a task.
+ * 
+ * TODO: add support for different time units?
+ * 
+ * @author Erich Schubert
+ */
+public interface Duration extends Statistic {
+  /**
+   * Start the timer.
+   */
+  void begin();
+
+  /**
+   * Finish the timer.
+   */
+  void end();
+
+  /**
+   * Get the begin of the interval.
+   * 
+   * @return Begin
+   */
+  long getBegin();
+
+  /**
+   * Get the end of the interval.
+   * 
+   * @return End
+   */
+  long getEnd();
+  
+  /**
+   * Get the duration of the interval.
+   * 
+   * @return Duration
+   */
+  long getDuration();
+}