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8136248
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2011-11-15T12:20:59.657
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2011-11-15T12:20:59.657
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<p>Your question is a little bit general. You probably have to deal with two questions which can be handled separately:</p> <ol> <li>Communication with the backend. </li> <li>GUI for CRUD operations</li> </ol> <h2>Communication with the backend:</h2> <p>It depends on which kind of backend you are using. </p> <p><strong>Java-backend:</strong> For Java backends the recommended client-server communication protocol is <a href="http://code.google.com/webtoolkit/doc/latest/DevGuideRequestFactory.html" rel="nofollow">RequestFactory</a>. </p> <p><strong>Non-Java-backend:</strong> In case you are using a non-java backend (python, PHP, etc) you have to use <a href="http://code.google.com/webtoolkit/doc/latest/tutorial/JSONphp.html" rel="nofollow">RequestBuilder</a> using JSON or XML (I would recommend JSON). </p> <p>For mapping JSON/XML to DTO's and vice verca you can use different methods:</p> <ol> <li>Third party tools like <a href="http://code.google.com/p/piriti/" rel="nofollow">piriti</a> which are based on GWT generators </li> <li><a href="http://code.google.com/webtoolkit/doc/latest/DevGuideCodingBasicsOverlay.html" rel="nofollow">Javascript Overlay Types</a> (JSO) </li> <li><a href="http://code.google.com/p/google-web-toolkit/wiki/AutoBean" rel="nofollow">GWT Autobean framework</a> (which is used by RequestFactory btw).</li> </ol> <h2>GUI for CRUD operations</h2> <p>For mapping your DTOs to your UI and doing the CRUD operations you can do it either:</p> <ol> <li>manually </li> <li>with the <a href="http://code.google.com/webtoolkit/doc/latest/DevGuideUiEditors.html" rel="nofollow">Editor</a> framework</li> </ol> <p>I would recommend to use the <code>Editor</code> framework as it reduces the amount of boilerplate code to move an object from your object graph to the UI and back.<br> The Editor framework works well with <code>RequestFactory</code> (<code>RequestFactoryEditorDriver</code>), <code>Autobean</code> (<code>SimpleBeanEditorDriver</code>) and <code>Javascript Overlay Types</code>.</p>
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