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POWCF Exception handling with batch operations
 

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    <p>I need an hint on this architectural problem.</p> <p>My application calls different wcf services that perform specific tasks returning a list of model objects.</p> <p>Say, I have a service which polls stock exchange titles returning a <code>List&lt;SeTitle&gt;</code>. [Purely fictional example, I'm reading a book on this subject]</p> <p>If an exception happens in one or few elements of this list I have two options in the wcf service: </p> <ul> <li>catch the exception, log it and return the List&lt;>, but in this way I'll lose evidence of all the faulty items in my application.</li> <li>throw an exception on first error, but in this way I won't receive any info even if only one item was "faulty".</li> </ul> <p>My will is to go for a third option, meaning that I'll always return my List but with the evidence of faulty items.</p> <p>My idea is to let all my model object extend a simple interface like (pardon names, they are horrible)</p> <pre><code>public interface IWcfReturnObject { public List&lt;WarningModel&gt; Warnings; } </code></pre> <p>and </p> <pre><code>public class SeTitle : IWcfReturnObject </code></pre> <p>in a such a way each element of the list could have an associated List of Warnings/Error to be returned to the application and then to the interface.</p> <p>My questions are:</p> <ul> <li>Is my question clear to understand?! ;)</li> <li>Do you think my desire (receive all element from wcf with warnings attached) is architecturally good?</li> <li>Do you think it exists a better approach to solve this problem?</li> </ul> <p>Thanks</p> <p>M.</p> <p>EDIT: I was doing research and looking at the first answer I think it is useful to give one solution I found on the NET</p> <p>Possible Solutions</p> <ol> <li>My way</li> <li>Log with some kind of correlation and refer it on the business layer as decyclone suggested</li> <li><a href="http://jclaes.blogspot.com/2010/05/exception-handling-in-batch-operations.html" rel="nofollow">AggregateException</a> </li> </ol>
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