--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gnv-artifacts/src/main/java/de/intevation/gnv/chart/AbstractChart.java	Fri Sep 28 12:14:00 2012 +0200
@@ -0,0 +1,90 @@
+/*
+ * Copyright (c) 2010 by Intevation GmbH
+ *
+ * This program is free software under the LGPL (>=v2.1)
+ * Read the file LGPL.txt coming with the software for details
+ * or visit http://www.gnu.org/licenses/ if it does not exist.
+ */
+
+package de.intevation.gnv.chart;
+
+import java.util.Collection;
+import java.util.Locale;
+
+import org.jfree.chart.ChartTheme;
+import org.jfree.chart.JFreeChart;
+
+/**
+ * Abstract chart class to define the basic fields used for chart creation.
+ *
+ * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
+ */
+public abstract class AbstractChart
+implements            Chart
+{
+    /**
+     * JFreeChart object. Created after {@link #generateChart()} is called.
+     */
+    protected JFreeChart  chart;
+
+    /**
+     * Field storing the visibility of lines in the chart plot.
+     */
+    protected boolean     linesVisible;
+
+    /**
+     * Field storing the visibility of points in the chart plot.
+     */
+    protected boolean     shapesVisible;
+
+    /**
+     * Locale object used for i18n support.
+     */
+    protected Locale      locale;
+
+    /**
+     * ChartLabels
+     */
+    protected ChartLabels labels;
+
+    /**
+     * ChartTheme
+     */
+    protected ChartTheme  theme;
+
+    /**
+     * Collection which contains a bunch of parameters.
+     */
+    protected Collection  parameters;
+
+    /**
+     * Collection which contains a bunch of measurements.
+     */
+    protected Collection  measurements;
+
+    /**
+     * Collection which contains all data objects used to be displayed in the
+     * chart. It contains different series and different datasets which is not
+     * very elegant.
+     */
+    protected Collection  resultSet;
+
+    /**
+     * Collection which contains a bunch of date objects.
+     */
+    protected Collection  dates;
+
+    /**
+     * Collection which contains a bunch of time gap definitions used to
+     * detect gaps in timeseries charts.
+     */
+    protected Collection  timeGaps;
+
+    /**
+     * Abstract method which needs to be implemented by concrete subclasses.
+     * This method triggers the JFreeChart creation process. After calling this
+     * method {@link #chart} should be a valid <code>JFreeChart</code> object.
+     */
+    public abstract JFreeChart generateChart();
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :