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Java/transform/Version2.java

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+/*   
+Version2.java
+ *    
+ *    You may use and distribute under the terms of either the GNU Lesser
+ *    General Public License, either version 2 of the license or,
+ *    at your choice, any later version. Alternatively, you may use and
+ *    distribute under the terms of the XPL.
+ *
+ *    See the LICENSE.lgpl and LICENSE.xpl files for the specific terms of 
+ *    the licenses.
+ *
+ *    This software 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 README
+ *    file for more details.
+ *
+ */
+/*
+ * Written by Tuomas Lukka
+ */
+package org.gzigzag.transform;
+import java.util.*;
+import org.gzigzag.*;
+
+/** ZZspace version changer - from version 2 to version 3.
+ * The change in the structure is that now rasters have names,
+ * and rasters are called views.
+ */
+
+public class Version2 implements VersionChanger {
+String rcsid = "$Id: Version2.java,v 1.3 2000/09/19 10:32:01 ajk Exp $";
+	static public final void pa(String s) { System.out.println(s); }
+	static public final void pan(String s) { System.out.print(s); }
+/** Change the space from version 2 to version 3 to make it compatible.
+ * Simply recreates the system part of the space, since we now use names for views.
+ */
+        public int changeVersion(ZZSpace s) {
+		pa("Converting from version 2 to version 3:");
+		pa("Recreating system space (not disconnecting old)");
+		ZZDefaultSpace.create(s.getHomeCell(), false);
+                return 3;
+        }
+}
+