created mirror

Java/storage/DummyStreamSet.java

@@ -0,0 +1,50 @@
+/*   
+DummyStreamSet.java
+ *    
+ *    Copyright (c) 1999-2001, Ted Nelson and Tuomas Lukka
+ *
+ *    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 Benjamin Fallenstein
+ */
+
+package org.gzigzag;
+
+import java.awt.*;
+import java.applet.*;
+import java.io.*;
+import java.util.*;
+
+/** A dummy stream set for ZZ spaces.
+ * Save fails, mostly for applets and testing.
+ */
+
+public class DummyStreamSet extends StreamSet {
+    public InputStream getInputStream(String id) { return null; }
+    public OutputStream getAppendStream(String id) { return null; }
+    public boolean exists(String id) { return false; }
+
+    Hashtable ws = new Hashtable();
+    public Writable getWritable(String id) {
+	Writable res = (Writable)ws.get(id);
+	if(res == null) {
+	    res = new MemWritable();
+	    ws.put(id, res);
+	}
+	return res;
+    }
+}
+