diff -r 000000000000 -r 639991d0808a java/cewolf-1.0/src/main/java/de/laures/cewolf/taglib/ChartConstants.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/java/cewolf-1.0/src/main/java/de/laures/cewolf/taglib/ChartConstants.java	Sat Feb 28 21:31:02 2009 +0100
@@ -0,0 +1,60 @@
+/* ================================================================
+ * Cewolf : Chart enabling Web Objects Framework
+ * ================================================================
+ *
+ * Project Info:  http://cewolf.sourceforge.net
+ * Project Lead:  Guido Laures (guido@laures.de);
+ *
+ * (C) Copyright 2002, by Guido Laures
+ *
+ * This library is free software; you can redistribute it and/or modify it under the terms
+ * of the GNU Lesser General Public License as published by the Free Software Foundation;
+ * either version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License along with this
+ * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+package de.laures.cewolf.taglib;
+
+/**
+ * Contains some base constants to avoid explicit dependancy to concrete chart 
+ * implementation's constant values. The constants of this class also serve as
+ * the base contract for data exchange between sub packages.
+ * @author  Guido Laures
+ */
+public interface ChartConstants {
+
+    int AREA = 0;
+    int AREA_XY = 1;
+    int HORIZONTAL_BAR = 2;
+    int HORIZONTAL_BAR_3D = 3;
+    int LINE = 4;
+    int PIE = 5;
+    int SCATTER = 6;
+    int STACKED_HORIZONTAL_BAR = 7;
+    int STACKED_VERTICAL_BAR = 8;
+    int STACKED_VERTICAL_BAR_3D = 9;
+    int TIME_SERIES = 10;
+    int VERTICAL_BAR = 11;
+    int VERTICAL_BAR_3D = 12;
+    int XY = 13;
+    int CANDLE_STICK = 14;
+    int HIGH_LOW = 15;
+    int GANTT = 16;
+    int WIND = 17;
+    int SIGNAL = 18;
+    int VERRTICAL_XY_BAR = 19;
+    int PIE_3D = 20;
+    int OVERLAY_XY = 21;
+    int OVERLAY_CATEGORY = 22;
+    int COMBINED_XY = 23;
+    int METER = 24;
+    int STACKED_AREA = 25;
+    int BUBBLE = 26;
+}