| home / experts / xml / column81 |
|
|
This is a tool which converts an input DTD into a set of corresponding java source or class files, which can then be used to create valid XML documents for use with the database.
import oracle.xml.parser.*;
import oracle.xml.classgen.*;
// generate the Java files...
ClassGenerator generator = new ClassGenerator();
// set output directory
generator.setOutputDirectory(".");
// generate java src
generator.generate(dtd, doctype_name);
If a DTD was used corresponding to the employee table emp above, the resulting classes could be used to create valid XML documents containing updated or new employees e.g
public class CreateEmployees {
EMP EMPLIST = new EMP();
DTD dtd = EMPLIST.getDTDNode(); // get static from base document
// New employee emp_row1
EMP_ROW emp_row1 = new EMP_ROW(1); // create row and set ROWNO
EMPNO empno1 = new EMPNO("7654");
ENAME ename1 = new ENAME("MARTIN");
JOB job1 = new JOB("SALESMAN");
...
}
XML in this case would be:
<?xml version="1.0"?>
<!DOCTYPE EMP SYSTEM "employee.dtd">
<EMP>
<EMP_ROW ROWNO = "1">
<EMPNO>7654</EMPNO>
<ENAME>MARTIN</ENAME>
<JOB>SALESMAN</JOB>
<MGR>7698</MGR>
<HIREDATE>1981-09-28 00:00:00.0</HIREDATE>
<SAL>1250</SAL>
<COMM>1400</COMM>
<DEPTNO>30</DEPTNO>
</EMP_ROW>
<EMP>
Last but nor least the transviewer...
Produced by Michael Claßen
Legal Notices, Licensing, Reprints, Permissions, Privacy Policy.
Advertise | Newsletters | Shopping | E-mail Offers | Freelance Jobs 
URL: http://www.webreference.com/xml/column81/5.html
Created: May 10, 2003
Revised: May 10, 2003
