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Java.xml.bind.JAXBElement.setNil() Method
Description
The Java.xml.bind.JAXBElement.setNil(boolean value) method set element's content as nil if value passed is true.
Declaration
Following is the declaration for java.xml.bind.JAXBElement.setNil(boolean value) method −
public boolean setNil(boolean value)
Parameters
value − true if this element has nil content false otherwise.
Return Value
NA
Exception
NA
Example
The following example shows the usage of java.xml.bind.JAXBElement.setNil() method. To proceed, consider the following Student class which will be used to have objects for marshalling and unmarshalling purposes −
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 show the usage of java.xml.bind.JAXBElement.setNil() method. Here we will create a JAXBElement of a Student object and then get the class of Student. This example set the value of JAXBElement object as Nil and prints the result.
package com.tutorialspoint; import javax.xml.bind.JAXBElement; import javax.xml.namespace.QName; public class JAXBElementDemo { public static void main(String[] args) { //Create a student object Student student = new Student(); //fill details of the student student.setName("Robert"); student.setId(1); student.setAge(12); //create JAXBElement of type Student //Pass it the student object JAXBElement<Student> jaxbElement = new JAXBElement( new QName(Student.class.getSimpleName()), Student.class, student); //set content as Nil jaxbElement.setNil(true); //print the result System.out.println("Is Nil: "+jaxbElement.isNil()); } }
Let us compile and run the above program, this will produce the following result −
Is Nil: true
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