The business value of combining XML, Java and XMLBeans

By reading this article, you will see how service-oriented architectures (service-oriented Architecture,soa), XML, and XMLBeans play an important role in solving real business problems and their causes, and case studies will be conducted in the entertainment industry as an example. The purpose of this article is not to introduce code, but to give you an idea of how to use XMLBeans and why when you need to use XML.

In the face of increasing software complexity, the Enterprise Architect's attention is focused on a way to solve system integration problems-object-oriented architecture (SOA). In essence, SOA is to improve business efficiency by enhancing the operational relationship between the service and information Technology (IT).

SOA applies the request/answer design paradigm to synchronous and asynchronous applications. In this approach, the logic and functionality of business applications are embodied in the form of services. An application developer or system integrator can build an application by combining one or more services without having to know the underlying implementation method of the service. In this way, you can actually consolidate all IT resources, including orphaned data and legacy systems that were previously incompatible.

In the SOA paradigm, providers communicate with consumers through messages. The messaging interface must be platform-and language-independent. Therefore, you typically use XML documents that conform to XML schemas to construct messages. Of course, application data is often stored in XML format.

XML provides the basic syntax, and you can use basic syntax to share information between computers, various applications, and various organizations without having to go through multiple layers of transformations. XML is important because it provides a common, standardized platform for building an integrated infrastructure to support enterprise application integration efforts.

Why use XMLBeans?

Using XMLBeans, you can use the Java™ programming language in conjunction with XML. The Java programming language is an object-oriented language that is based on open, open standards, portable, robust, and reliable. With these features, the Java programming language has been widely accepted and implemented in many industries, including the entertainment industry. However, XML is not compatible with the Java programming language. And XMLBeans is the best way to clear the barrier.

XMLBeans is used for XML data binding. Use the Xmlbeans,java application to take advantage of the benefits of XML. XMLBeans uses an XML Schema to compile Java interfaces and classes for accessing and modifying XML instance data. With this technique, you can compile an XML Schema into a set of Java classes that have the following features:

Use XMLBeans when encountering any Schema

Access to XML data at any level as needed

XMLBeans provides the following application interfaces (APIs) for data binding:

Xmlobject: If Java classes are generated from XML schemas, these Java classes are derived from the Xmlobject API.

The Xmlcursor:xmlcursor API provides low-level access to XML Infoset, which represents the position of the cursor in an XML instance.

SchemaType: XML Schema object model for underlying meta information.

The XMLBeans compiler represents an object that generates an XML schema. This object represents a set of generic Java classes and interfaces that represent the structure and constraints of a schema. After the Java class and interface are generated, the XML instance document that conforms to the schema is bound to it. The binding process involves using the XMLBeans API in an object-oriented manner to access data in an actual XML instance document.

If you use a powerful XMLBeans, you do not need to write all the code to use XML. You can easily use XML in your application. If you do not use XMLBeans, you must write code to take advantage of each part of the pattern. Imagine using XMLBeans as a pattern to generate classes, assuming that there are several pairs of one or one pairs of many-to-many and many-to-many relationships that need to be managed, and using XMLBeans can easily accomplish this task:

Install XMLBeans.

Compile-mode to generate Java Archive (JAR) files.

Write code to bind the XML instance to the Java type that represents the pattern. Listing 1 provides a simple example:

Listing 1. XMLBeans simple and easy to use

File xmlEntertainFile = new File("c:\entertain.xml");
// Bind the instance to the XMLBeans types that were generated.
EntertainDocument entDoc =
EntertainDocument.Factory.parse(xmlEntertainFile);
// Get and then print pieces of the XML instance.
Entertain ent = entDoc.getEntertain();
Entertain[] entArray = ent.getEntertainArray();
for (int i = 0; i < entArray.length; i++)
{
System.out.println(entArray[i]);
}