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The following page has been changed by KevinWilliams:
http://wiki.apache.org/ws/ColumnConverters

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+ The followoing example illustrates the use of the converter framework to 
obfuscate a String value before it is stored to the database and deobfuscate it 
on read.
+ {{{
+         DAS das = DAS.FACTORY.createDAS(getConfig("CustomerConfig.xml"), 
getConnection());
+ 
+         // Create and initialize command to read customers
+         Command read = das.getCommand("getFirstCustomer");
+ 
+         // Read
+         DataObject root = read.executeQuery();
+         
+         //Modify
+         root.setString("CUSTOMER[1]/LASTNAME", "Some new name");
+        
+         das.applyChanges(root);
+ 
+ }}}
+ 
+ This example just shows a simple read of a customer !DataObject followed 
setting the last name to some new value.  You will have to take my word for it 
that the value is not written as-is but is instead obfuscated.  The actual 
value written to the database table column is "Fbzr arj anzr" based on the 
ROT13 algorithm used in the converter.
+ 

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