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Note: I'm the <a href="http://www.eclipse.org/eclipselink/moxy.php" rel="nofollow">EclipseLink JAXB (MOXy)</a> lead and a member of the <a href="http://jcp.org/en/jsr/detail?id=222" rel="nofollow">JAXB (JSR-222)</a> expert group. In EclipseLink 2.5 (get it here: <a href="http://www.eclipse.org/eclipselink/downloads/milestones.php" rel="nofollow">http://www.eclipse.org/eclipselink/downloads/milestones.php</a>) we added a new feature to MOXy JAXB called Object Graphs. Object Graphs allow to programatically or through metadata select a subset of properties that you want to marshal/unmarshal. Below is an example of creating an object graph to get a subset of data from a <code>Customer</code>, <code>Address</code>, and <code>PhoneNumber</code> model. <pre><code> // Create the Object Graph ObjectGraph contactInfo = JAXBHelper.getJAXBContext(jc).createObjectGraph(Customer.class); contactInfo.addAttributeNodes("name"); Subgraph location = contactInfo.addSubgraph("billingAddress"); location.addAttributeNodes("city", "province"); Subgraph simple = contactInfo.addSubgraph("phoneNumbers"); simple.addAttributeNodes("value"); // Output XML - Based on Object Graph marshaller.setProperty(MarshallerProperties.OBJECT_GRAPH, contactInfo); marshaller.marshal(customer, System.out); </code></pre> For More Information <ul> <li><a href="http://wiki.eclipse.org/EclipseLink/Examples/MOXy/ObjectGraphs/Programmatic" rel="nofollow">http://wiki.eclipse.org/EclipseLink/Examples/MOXy/ObjectGraphs/Programmatic</a></li> </ul>
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1. POHow to tell JAXB which fields to serialize at run time?
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1. USBlaise Doughan
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1. POHow to tell JAXB which fields to serialize at run time?
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1. COThanks, this is nice. Works well. However I have some problem with marshaling of ID fields in subgraph. I have a list of objects of class A (wrapped in a JaxbList). Each object of class A in turn has a list of objects of class B. I create object graph by passing to JaxbList.class . From that I create a Subgraph for B. A is serialized as expected, but the ID field of subgraph is not serialized. If I try marshaling by keeping B as the main graph (instead of subgraph), then ID field is serialized as expected. Any idea what could be wrong? I tried commenting out XmlID annotation. It still happens.
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