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    <p>There is a deployment option that can be used to ignore the application bindings in your updated EAR file, such that the existing configuration in your <em>installed EAR</em> takes precedence. When <a href="http://publib.boulder.ibm.com/infocenter/wasinfo/v7r0/topic/com.ibm.websphere.nd.doc/info/ae/ae/rxml_adminapp.html#rxml_adminapp__cmd18" rel="nofollow">updating</a> your application using <code>wsadmin</code>, the option is <a href="http://publib.boulder.ibm.com/infocenter/wasinfo/v7r0/topic/com.ibm.websphere.nd.doc/info/ae/ae/rxml_taskoptions.html#rxml_taskoptions__cmd83" rel="nofollow"><strong><code>update.ignore.new</code></strong></a>. If updating your application using the admin console, this option is available by selecting the "<strong>use existing bindings</strong>" option from the <a href="http://publib.boulder.ibm.com/infocenter/wasinfo/v7r0/index.jsp?topic=/com.ibm.websphere.nd.doc/info/ae/ae/urun_rapp_instw_gendefbind.html" rel="nofollow">"Preparing for the application update"</a> step during the update.</p> <p>This should accomplish what it seems that you are looking for. For example, consider that you have a resource reference in your application named "<code>jdbc/MyDataSource</code>" that is mapped to <code>jdbc/ProductionDataSource</code> in your <em>installed</em> application, and you are <em>updating</em> this application with a version of the EAR file that maps this resource reference to <code>jdbc/TestDataSource</code> in the IBM config files. Using the <code>update.ignore.new</code> option, this resource reference will continue to remain mapped to <code>jdbc/ProductionDataSource</code> after you have completed your application update. (Note that the <em>default</em> deployment behavior in WAS is that, <em>without</em> using this option, the resource reference would map to <code>jdbc/TestDataSource</code> in your updated application unless you explicitly overrode it otherwise during the deployment process.)</p>
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