.. java:import:: java.io IOException

.. java:import:: java.security NoSuchAlgorithmException

.. java:import:: org.caosdb.server CaosDBException

.. java:import:: org.caosdb.server.database DatabaseAccessManager

.. java:import:: org.caosdb.server.database.access Access

.. java:import:: org.caosdb.server.database.backend.transaction GetUpdateableChecksums

.. java:import:: org.caosdb.server.database.backend.transaction RetrieveSparseEntity

.. java:import:: org.caosdb.server.database.backend.transaction SetFileChecksum

.. java:import:: org.caosdb.server.database.exceptions TransactionException

.. java:import:: org.caosdb.server.entity EntityID

.. java:import:: org.caosdb.server.entity EntityInterface

.. java:import:: org.caosdb.server.entity FileProperties

.. java:import:: org.caosdb.server.entity Message

.. java:import:: org.caosdb.server.entity.container WritableContainer

.. java:import:: org.caosdb.server.utils FileUtils

ChecksumUpdater
===============

.. java:package:: org.caosdb.server.transaction
   :noindex:

.. java:type:: public class ChecksumUpdater extends WriteTransaction implements Runnable, WriteTransactionInterface

   Retrieves all file without a checksum, calculates one and stores it to the database (method 'run'). This is meant for asynchronous checksum calculation.

   :author: tf

Methods
-------
init
^^^^

.. java:method:: @Override protected void init() throws Exception
   :outertype: ChecksumUpdater

logHistory
^^^^^^^^^^

.. java:method:: @Override public boolean logHistory()
   :outertype: ChecksumUpdater

postCheck
^^^^^^^^^

.. java:method:: @Override protected void postCheck()
   :outertype: ChecksumUpdater

postTransaction
^^^^^^^^^^^^^^^

.. java:method:: @Override protected void postTransaction() throws Exception
   :outertype: ChecksumUpdater

preCheck
^^^^^^^^

.. java:method:: @Override protected void preCheck() throws InterruptedException, Exception
   :outertype: ChecksumUpdater

run
^^^

.. java:method:: @Override public void run()
   :outertype: ChecksumUpdater

   Retrieves all file without a checksum, calculates one and stores it to the database

start
^^^^^

.. java:method:: public static void start()
   :outertype: ChecksumUpdater

transaction
^^^^^^^^^^^

.. java:method:: @Override protected void transaction() throws Exception
   :outertype: ChecksumUpdater