The java.jaxb option enables a JAXB facility for Relaxer objects.
The java.jaxb option takes one of the following values as a parameter:
The default configuration is false
.
No parameter implies that the parameter is true
.
List 4.18.3.1[javaJaxb.rng] is a sample schema for the java.jaxb option.
<grammar xmlns="http://relaxng.org/ns/structure/1.0" datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes" ns="http://example.com/account"> <start> <choice> <ref name="account"/> <ref name="address"/> <ref name="phone"/> </choice> </start> <define name="account"> <element name="account"> <attribute name="accountNo"> <data type="token"/> </attribute> <element name="balance"> <data type="int"/> </element> <element name="owner"> <data type="token"/> </element> <optional> <ref name="address"/> </optional> <zeroOrMore> <ref name="phone"/> </zeroOrMore> </element> </define> <define name="address"> <element name="address"> <attribute name="zip"> <data type="token"/> </attribute> <text/> </element> </define> <define name="phone"> <element name="phone"> <attribute name="area"> <data type="token"/> </attribute> <data type="token"/> </element> </define> </grammar>
Execution of Relaxer with the java.jaxb option is as follows:
$ relaxer -java -java.jaxb javaJaxb.rng
Because the Java generator is a default generator, execution of Relaxer as shown below has the same effect:
$ relaxer -java.jaxb javaJaxb.rng
As a result, Relaxer generates six files:
List 4.18.3.1.1[JavaJaxb.java] is a sample program for the java.jaxb option.
package com.example; import java.io.File; import java.io.IOException; import javax.xml.parsers.ParserConfigurationException; import javax.xml.bind.JAXBContext; import javax.xml.bind.Unmarshaller; import javax.xml.bind.Marshaller; import javax.xml.bind.JAXBException; import org.xml.sax.SAXException; public class JavaJaxb { public static void main(String[] args) throws JAXBException { String uri = args[0]; Account account = makeAccount(uri); printAccount(account); showAccount(account); } private static Account makeAccount(String uri) throws JAXBException { System.out.println("*** makeAccount ***"); JAXBContext jc = JAXBContext.newInstance("com.example"); Unmarshaller u = jc.createUnmarshaller(); Account account = (Account)u.unmarshal(new File(uri)); return (account); } private static void printAccount(Account account) { System.out.println("*** printAccount ***"); String accountNo = account.getAccountNo(); long balance = account.getBalance(); String owner = account.getOwner(); System.out.println("AccountNo:" + accountNo); System.out.println("Balance:" + balance); System.out.println("Owner:" + owner); Address address = account.getAddress(); if (address != null) { String zip = address.getZip(); String place = address.getContent(); System.out.println("Address: [" + zip + "] " + place); } Phone[] phones = account.getPhone(); for (int i = 0;i < phones.length;i++) { Phone phone = phones[i]; String area = phone.getArea(); String number = phone.getContent(); System.out.println("Phone: [" + area + "] " + number); } } private static void showAccount(Account account) throws JAXBException { System.out.println("*** showAccount ***"); JAXBContext jc = JAXBContext.newInstance("com.example"); Marshaller m = jc.createMarshaller(); System.out.print("XML:"); m.marshal(account, System.out); System.out.println(); } }
Compilation of JavaJaxb.java
class is shown here:
$ javac JavaJaxb.java
List 4.18.3.2.1[javaJaxb.xml] is an XML document for testing.
<account xmlns="http://example.com/account" accountNo="12345"> <balance>102030</balance> <owner>XML Taro</owner> <address zip="213">Yokohama</address> <phone area="123">456-7890</phone> <phone area="090">123-4567</phone> </account>
Execution of the JavaJaxb
class is shown here:
$ java JavaPatternIdmap javaPathlist.xml *** makeAccount *** *** printAccount *** AccountNo:12345 Balance:102030 Owner:XML Taro Address: [213] Yokohama Phone: [123] 456-7890 Phone: [090] 123-4567 XML:<account \ accountNo="12345"><balance>102030</balance><owner>XML \ Taro</owner><address id="id_address" \ zip="213">Yokohama</address><phone \ area="123">456-7890</phone><phone id="id_phone" \ area="090">123-4567</phone></account> *** findElementsById *** Address: [213] Yokohama Phone: [090] 123-4567