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 package org.apidesign.spi.security;

 import java.nio.ByteBuffer;

 /**

  *

  * @author  Jaroslav Tulach <jaroslav.tulach@apidesign.org>

  */

 // BEGIN: day.end.bridges.Digestor

 public abstract class Digestor<Data> {

    protected abstract byte[] digest(Data data);

    protected abstract Data create(String algorithm); 

    protected abstract void update(Data data, ByteBuffer input);

 // FINISH: day.end.bridges.Digestor   

    static {

        // initializes the accessor, so the api package can call protected

        // methods from this class

        new DigestorAccessorImpl();

    }

 }