Serializing Java Objects as XML
Reading Archived Objects
Reading (unarchiving) a Java object from an XML archive is just as easy as reading it from a serialized object binary file. However, instead of using java.io.ObjectInputStream, you use java.beans.XMLDecoder. Here is the algorithm:
// Create input stream. FileInputStream fos = new FileInputStream("foo.xml"); // Create XML decoder. XMLDecoder xdec = new XMLDecoder(fis); // Read object. Foo aFoo = (Foo) xdec.readObject();
WriteAtomXML is a program that demonstrates archiving an object graph. It archives an instance of Atom that references two instances of Quark. ReadXML can be used to read the archive that WriteAtomXML creates.
- Example Programs -- examples.zip
- Using XMLEncoder -- http://java.sun.com/products/jfc/tsc/articles/persistence4/index.html
- Long-Term Persistence for JavaBeans -- http://java.sun.com/products/jfc/tsc/articles/persistence/index.html
- Long-Term Persistence of JavaBeans Components: XML Schema -- http://java.sun.com/products/jfc/tsc/articles/persistence3/index.html
- XML Archive DTD -- http://java.sun.com/products/jfc/tsc/articles/persistence3/javabeans.dtd
About the Author
Thornton Rose is a contract software developer in Atlanta, Ga. He can be reached via e-mail at firstname.lastname@example.org.
Copyright© 2002, Thornton Rose.
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