diff -r f464a16d553a -r dbe255defdbb samples/messagedigest/src-new-api/org/apidesign/api/security/DigestImpl.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/samples/messagedigest/src-new-api/org/apidesign/api/security/DigestImpl.java	Thu Dec 25 19:25:59 2008 +0100
@@ -0,0 +1,46 @@
+/*
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+
+package org.apidesign.api.security;
+
+import java.nio.ByteBuffer;
+import org.apidesign.spi.security.Digestor;
+
+/**
+ *
+ * @author Jaroslav Tulach <jaroslav.tulach@apidesign.org>
+ */
+// BEGIN: day.end.bridges.DigestImpl
+final class DigestImpl<Data> {
+    private static final DigestorAccessorImpl ACCESSOR = new DigestorAccessorImpl();
+    
+    private final Digestor<Data> digestor;
+    private final String algorithm;
+    private Data data;
+    
+    private DigestImpl(Digestor<Data> digestor, String algorithm, Data d) {
+        this.digestor = digestor;
+        this.algorithm = algorithm;
+        this.data = d;
+    }
+    
+    static <Data> DigestImpl create(Digestor<Data> digestor, String algorithm) {
+        // indirectly calls digestor.create(algorithm)
+        Data d = ACCESSOR.create(digestor, algorithm);
+        if (d == null) {
+            return null;
+        } else {
+            return new DigestImpl(digestor, algorithm, d);
+        }
+    }
+
+    byte[] digest(ByteBuffer bb) {
+        // indirectly calls digestor.update(data, bb)
+        ACCESSOR.update(digestor, data, bb);
+        // indirectly calls digestor.digest(data)
+        return ACCESSOR.digest(digestor, data);
+    }
+}
+// END: day.end.bridges.DigestImpl
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