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Javax.xml.bind.Binder.setProperty() Method
Description
The Javax.xml.bind.Binder.setProperty(String name, Object value) set the particular property in the underlying implementation of Binder. this method can only be used to set one of the standard JAXB defined unmarshal/marsrhal properties or a provider specific property for the binder unmarshal or marshal.
Declaration
Following is the declaration for javax.xml.bind.Binder.setProperty(String name, Object value) method
public abstract void setProperty(String name, Object value)
Parameters
name − the name of the property to be set. This value can either be specified using one of the constant fields or a user supplied string.
value − the value of the property set
Return Value
This method does not return any value.
Exception
PropertyException − when there is an error processing the given property or value
IllegalArgumentException − If the name parameter is null
Example
The following example shows the usage of javax.xml.bind.Binder.setProperty(String name, Object value) method. To proceed, consider the following Student class which will be used to have objects for marshalling purpose −
package com.tutorialspoint; import javax.xml.bind.annotation.XmlAttribute; import javax.xml.bind.annotation.XmlElement; import javax.xml.bind.annotation.XmlRootElement; @XmlRootElement public class Student{ String name; int age; int id; public String getName(){ return name; } @XmlElement public void setName(String name){ this.name = name; } public int getAge(){ return age; } @XmlElement public void setAge(int age){ this.age = age; } public int getId(){ return id; } @XmlAttribute public void setId(int id){ this.id = id; } }
Now let us create main class which will be used to marshal ie. convert Student object into an XML file. Here we will creat Binder object using JAXBContext because we can not create Binder object directly because it is an abstract class. This example marshals the Student object and prints it at STDOUT, but in practical scenario you can store the object in any file as an XML node.
package com.tutorialspoint; import javax.xml.bind.JAXBContext; import javax.xml.bind.Marshaller; import javax.xml.bind.Binder; import javax.xml.parsers.DocumentBuilder; import javax.xml.parsers.DocumentBuilderFactory; import javax.xml.transform.Transformer; import javax.xml.transform.TransformerFactory; import javax.xml.transform.dom.DOMSource; import javax.xml.transform.stream.StreamResult; import org.w3c.dom.Document; import org.w3c.dom.Node; public class BinderDemo { public static void main(String[] args) { // create a Student object and set its properties Student student = new Student(); student.setId(10); student.setName("Malik"); student.setAge(11); try { // we need a blank document to store final xml output DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance(); DocumentBuilder docBuilder = dbf.newDocumentBuilder(); Document document = docBuilder.newDocument(); // create JAXBContext which will be used to create a Binder JAXBContext jc = JAXBContext.newInstance(Student.class); Binder<Node> binder = jc.createBinder(); // set the property binder.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true); // let's marshal the object and store in document binder.marshal(student, document); // finally print the marshalled object on stdout TransformerFactory tf = TransformerFactory.newInstance(); Transformer t = tf.newTransformer(); t.transform(new DOMSource(document), new StreamResult(System.out)); }catch(Exception ex) { ex.printStackTrace(); } } }
Before we proceed for compilation, we need to make sure that that we download JAXB2.xxx.jar and put it in our CLASSPATH. Once setup is ready, let us compile and run the above program, this will produce the following result −
<?xml version = "1.0" encoding = "UTF-8" standalone = "no"?> <student id = "10"> <age>11</age> <name>Malik</name> </student>
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