* as marshalling and reverse process is called unmarshalling.MQTT is a publish/subscribe protocol that is lightweight and requires a minimal footprint and bandwidth to connect an IoT device.
Converting a Java object to XML is also knonwn * Java program to convert Java object to XML Document using Here is the complete Java program to convert a Java object to an XML file using JAXB API : Let's see how you can use JAXB to create an XML document from Java classes This is how JAXB works, let's say you have an Item object that needs to be converted to an XML document, all you need to do is create a class Item with getters and annotate them appropriately as shown below : This book covers not only DOM and SAX but also StAX parser and locating information with XPath. If you want to learn more about XML processing in Java, I suggest to look at chapter 2 of Core Java Volume 2 By Cay S. The package provides a runtime binding framework for clients to marshal, unmarshal and validate XML files in Java.īy the way, JAXB is not the only option to parse XML in Java, you can always use SAX or DOM parser or JAXP API to convert XML to Java object and vice-versa. JAXB actually defines the behavior of a standard set of tools and interfaces that automatically generate Java class files from an XML schema, remember JAXB is actually a framework and architecture, not an implementation. It uses a combination of annotations and getters and setters to marshal Java objects into XML. JAXB, which stands for Java API for XML Binding or sometimes Java Architecture for XML Binding is a decade-old technology to directly convert a Java object into an XML document (marshaling) and back to XML file into Java object(unmarshalling).
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