Reverted changes to freeze demos.

Squashed commit of the following:

commit 8538f7592c2394757efe5770e7ee64e6c798cc54
Author: Michi Henning <michi@zeroc.com>
Date:   Tue May 13 13:40:14 2008 +1000

    Revert "Updated Freeze demos to align with life cycle chapter. Added interactive"

    This reverts commit 3fc7fe8faf1c73e85fdb6f1274ed380155f9a8fc.

commit 4c8f5001f7488c942e6e42b4c935925b255c8de6
Author: Michi Henning <michi@zeroc.com>
Date:   Tue May 13 13:39:52 2008 +1000

    Revert "Removed freeze_filesystem demo (now called evictor_filesystem)."

    This reverts commit 024c99e50dc0a3e2dee903d1470e028273706ace.

commit db921eebbfea02a628a6d7ac2fc3fe876005da7c
Author: Michi Henning <michi@zeroc.com>
Date:   Tue May 13 13:39:33 2008 +1000

    Revert "Added map filesystem demo for Java."

    This reverts commit ed82a00405e11037b739b2a9e3a33d820a44d34d.

1 files changed, 81 insertions, 0 deletions

diff --git a/java/demo/book/freeze_filesystem/Server.java b/java/demo/book/freeze_filesystem/Server.java
new file mode 100644
index 00000000000..6e66f3ccb3f
--- /dev/null
+++ b/java/demo/book/freeze_filesystem/Server.java
@@ -0,0 +1,81 @@
+// **********************************************************************
+//
+// Copyright (c) 2003-2008 ZeroC, Inc. All rights reserved.
+//
+// This copy of Ice is licensed to you under the terms described in the
+// ICE_LICENSE file included in this distribution.
+//
+// **********************************************************************
+
+import Filesystem.*;
+
+public class Server extends Ice.Application
+{
+    public
+    Server(String envName)
+    {
+        _envName = envName;
+    }
+
+    public int
+    run(String[] args)
+    {
+        //
+        // Install object factories.
+        //
+        Ice.ObjectFactory factory = new NodeFactory();
+        communicator().addObjectFactory(factory, PersistentFile.ice_staticId());
+        communicator().addObjectFactory(factory, PersistentDirectory.ice_staticId());
+
+        //
+        // Create an object adapter.
+        //
+        Ice.ObjectAdapter adapter =
+            communicator().createObjectAdapterWithEndpoints("FreezeFilesystem", "default -p 10000");
+
+        //
+        // Create the Freeze evictor (stored in the _evictor
+        // static member).
+        //
+        Freeze.ServantInitializer init = new NodeInitializer();
+        Freeze.Evictor evictor = Freeze.Util.createBackgroundSaveEvictor(adapter, _envName, "evictorfs", init, null, true);
+        DirectoryI._evictor = evictor;
+        FileI._evictor = evictor;
+
+        adapter.addServantLocator(evictor, "");
+
+        //
+        // Create the root node if it doesn't exist.
+        //
+        Ice.Identity rootId = Ice.Util.stringToIdentity("RootDir");
+        if(!evictor.hasObject(rootId))
+        {
+            PersistentDirectory root = new DirectoryI(rootId);
+            root.nodeName = "/";
+            root.nodes = new java.util.HashMap();
+            evictor.add(root, rootId);
+        }
+
+        //
+        // Ready to accept requests now.
+        //
+        adapter.activate();
+
+        //
+        // Wait until we are done.
+        //
+        communicator().waitForShutdown();
+
+        return 0;
+    }
+
+    public static void
+    main(String[] args)
+    {
+        Server app = new Server("db");
+        int status = app.main("Server", args, "config.server");
+        System.exit(status);
+    }
+
+    private String _envName;
+}