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2011-10-25T14:14:08.857
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2011-10-25T14:23:53.947
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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 2 (JSR-22)</a> expert group. The MOXy component in EclipseLink 2.4 will contain the type of JSON binding you are looking for. In the example below an Address object is mapped to the response of running <a href="http://code.google.com/apis/maps/documentation/geocoding/v2/" rel="nofollow">Google's Geocoding API V2</a>. This example demonstrates how the path based mapping eliminates the need to for close relationship between classes and JSON structure. <pre><code>package blog.geocode.json; import javax.xml.bind.annotation.XmlType; import org.eclipse.persistence.oxm.annotations.XmlPath; @XmlType(propOrder={"country", "state", "city", "street", "postalCode"}) public class Address { @XmlPath("Placemark/ns:AddressDetails/ns:Country/ns:AdministrativeArea/ns:Locality/ns:Thoroughfare/ns:ThoroughfareName/text()") private String street; @XmlPath("Placemark/ns:AddressDetails/ns:Country/ns:AdministrativeArea/ns:Locality/ns:LocalityName/text()") private String city; @XmlPath("Placemark/ns:AddressDetails/ns:Country/ns:AdministrativeArea/ns:AdministrativeAreaName/text()") private String state; @XmlPath("Placemark/ns:AddressDetails/ns:Country/ns:CountryNameCode/text()") private String country; @XmlPath("Placemark/ns:AddressDetails/ns:Country/ns:AdministrativeArea/ns:Locality/ns:PostalCode/ns:PostalCodeNumber/text()") private String postalCode; } </code></pre> <ul> <li><a href="http://blog.bdoughan.com/2011/08/binding-to-json-xml-geocode-example.html" rel="nofollow">http://blog.bdoughan.com/2011/08/binding-to-json-xml-geocode-example.html</a> (Full Example)</li> </ul> As you mention having a separate mapping document is key to applying multiple mappings to an object model. The MOXy binding document can be leveraged for both XML and JSON binding: <ul> <li><a href="http://blog.bdoughan.com/2011/09/mapping-objects-to-multiple-xml-schemas.html" rel="nofollow">http://blog.bdoughan.com/2011/09/mapping-objects-to-multiple-xml-schemas.html</a></li> </ul> You can try the JSON binding out today using one of the milestone builds: <ul> <li><a href="http://www.eclipse.org/eclipselink/downloads/milestones.php" rel="nofollow">http://www.eclipse.org/eclipselink/downloads/milestones.php</a></li> </ul>
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1. POmultiple json bindings in java
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1. USBlaise Doughan
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1. COdo you have an example for binding to a json structure?
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2. COThe following example demonstrates how to map to a JSON structure: http://blog.bdoughan.com/2011/08/json-binding-with-eclipselink-moxy.html, and this example demonstrates how the same metadata can be used to map to both JSON and XML: http://blog.bdoughan.com/2011/08/binding-to-json-xml-geocode-example.html
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