diff -r 000000000000 -r 716af5f2ebd1 samples/messagedigest/src-test/test/CountingDigestor.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/samples/messagedigest/src-test/test/CountingDigestor.java	Sat Jun 14 09:52:23 2008 +0200
@@ -0,0 +1,35 @@
+/*
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+
+package test;
+
+import java.nio.ByteBuffer;
+import org.apidesign.spi.security.Digestor;
+
+/**
+ *
+ * @author jarda
+ */
+public final class CountingDigestor extends Digestor<int[]> {
+
+    @Override
+    protected byte[] digest(int[] data) {
+        int i = data[0];
+        byte[] arr = { (byte) (i & 255), (byte) ((i >> 8) & 255), (byte) ((i >> 16) & 255), (byte) ((i >> 24) & 255) };
+        return arr;
+    }
+
+    @Override
+    protected int[] create(String algorithm) {
+        return "cnt".equals(algorithm) ? new int[1] : null; // NOI18N
+    }
+
+    @Override
+    protected void update(int[] data, ByteBuffer input) {
+        data[0] += input.remaining();
+        input.position(input.position() + input.remaining());
+    }
+
+}