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POFiltering Subscriptions to Windows Azure Service Bus Topics using Java
 

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  1. POFiltering Subscriptions to Windows Azure Service Bus Topics using Java
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    <p>I would like to use Windows Azure Service Bus Topics with subscription filters in my Java application. I am using the <a href="http://msdn.microsoft.com/en-us/library/hh690946.aspx" rel="nofollow">Windows Azure Plugin for Eclipse with Java (by Microsoft Open Technologies)</a> and the Windows Azure SDK 2.0.</p> <p>I found that the <a href="http://www.windowsazure.com/en-us/develop/java/how-to-guides/service-bus-topics/" rel="nofollow">basic example code</a> on the Microsoft website showing how to do this with the Java API is not working. </p> <p>How should the basic example code accomplish the following programmatically from a Java application using the API?</p> <p>1) Get a ServiceBusContract object for an existing “TestTopic” in my existing namespace.</p> <p>2) Create an “AllMessages” subscription using the default MatchAll filter. This subscription receives all the messages sent to “TestTopic” in it’s virtual queue.</p> <p>3) Create a “LowMessages” subscription using a SqlFilter filter to filter for “MessageNumber &lt;=3”. The virtual queue for this subscription should only receive messages having a MessageNumber custom property value less than or equal to 3 .</p> <p>4) Create a “HighMessages” subscription using a SqlFilter to filter for “MessageNumber &lt;=3”. The virtual queue for this subscription should only receive messages having a MessageNumber custom property value greater than 3.</p> <p>5) Send a batch of example brokered messages to “TestTopic” with ( 0&lt;= MessageNumber &lt;7)</p> <p>6) Receive the messages for all three subscriptions and show they have been filtered.</p> <p>I believe I found reasons the example was not working, and I include the corrected Java code as an answer below for others that may also want to see a basic example of how to do this.</p>
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    1. USMark Rovetta
    1. USMark Rovetta
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