- Javax.xml.bind classes
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- Binder
- DatatypeConverter
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- JAXBContext
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- Marshaller.Listener
- SchemaOutputResolver
- Unmarshaller.Listener
- Javax.xml.bind.util classes
- JAXBResult
- JAXBSource
- ValidationEventCollector
- Javax.xml.parsers classes
- DocumentBuilder
- DocumentBuilderFactory
- SAXParser
- SAXParserFactory
- Javax.xml.soap classes
- AttachmentPart
- MessageFactory
- MimeHeader
- MimeHeaders
- SAAJMetaFactory
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- SOAPConnectionFactory
- SOAPFactory
- SOAPMessage
- SOAPPart
- Javax.xml.validation classes
- Schema
- SchemaFactory
- TypeInfoProvider
- Validator
- ValidatorHandler
- Javax.xml.xpath classes
- XPathConstants
- XPathFactory
- Java Useful Resources
- Java - Quick Guide
- Java - Useful Resources
javax.xml.bind.Binder.setSchema() Method
Description
The Javax.xml.bind.Binder.setSchema(Schema schema) method specifies whether marshal, unmarshal and update methods performs validation on their XML content.
Declaration
Following is the declaration for javax.xml.bind.Binder.setSchema(Schema schema) method
public abstract void setSchema(Schema schema)
Parameters
schema − set to null to disable validation.
Return Value
This method does not return any value.
Exception
NA
Example
The following example shows the usage of javax.xml.bind.Binder.setSchema(Schema schema) 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 java.io.File; import javax.xml.XMLConstants; 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.validation.Schema; import javax.xml.validation.SchemaFactory; import org.w3c.dom.Document; import org.w3c.dom.Node; public class BinderDemo { public static void main(String[] args) { try { // we need a blank document to store final xml output DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance(); DocumentBuilder docBuilder = dbf.newDocumentBuilder(); Document document = docBuilder.parse("Student.xml"); SchemaFactory sf = null; sf = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI); File f = new File("Student.xsd"); // create new schema Schema schema = sf.newSchema(f); // create JAXBContext which will be used to create a Binder JAXBContext jc = JAXBContext.newInstance(Student.class); // create binder object Binder<Node> binder = jc.createBinder(); // set the property binder.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true); // get xml node Node xmlNode = document.getDocumentElement(); // set schema for binder binder.setSchema(schema); // set validation event handler binder.setEventHandler(new StudentValidationEventHandler()); // unmarshaling xml to JAXB object Student st = (Student)binder.unmarshal(xmlNode); // finally print the marshalled object on stdout System.out.println("Name : "+st.getName()); System.out.println("Age : "+st.getAge()); }catch(Exception ex) { ex.printStackTrace(); } } }
The following is the xml input to the program.
<?xml version = "1.0" encoding = "UTF-8" standalone = "yes"?> <student id = "10"> <age>12</age> <name>Malik</name> </student>
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 −
Name : Malik Age : 12
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