PL/SQL Programming

Question

Hi
" I Need Help"
I am trying to call a java program from inside a PL/SQL block. I created a java class and compiled it and then loaded that class into ORACLE database using the following method.
Step 1:
CONNECT System/Manager
GRANT CREATE ANY DIRECTORY TO Scott IDENTIFIED BY Tiger;
CONNECT Scott/Tiger
CREATE DIRECTORY Bfile_dir AS '/home/java/bin';
step 2:
CREATE JAVA CLASS USING BFILE (Bfile_dir, 'Factorial.class');
step 3:
publishing Java Class Methods
package myRoutines.math;
public class Factorial {
public static int J_calcFactorial (int n) {
if (n == 1) return 1;
else return n * J_calcFactorial(n - 1);
Associate the Java Method with an Oracle Function
CREATE OR REPLACE FUNCTION Plstojavafac_func (N NUMBER) RETURN NUMBER AS
LANGUAGE JAVA
NAME 'myRoutines.math.Factorial.J_calcFactorial(int) return int';
while I try to invoke the java method, I get the following error message
" DBMS_JAVA.SHORTNAME not declared"
Should I run any of the .sql files to create this procedure. I was of the notion that the procedure gets automatically created when Oracle JVM is installed

Answer 1

Mostly the error "identifier 'DBMS_JAVA.SHORTNAME' must be declared" occurs when the JVM is not installed properly.
Reinstall the JVM running initjvm.sql in the <OracleHome>/javavm/install directory.
Make sure you satisfy the requirements as described in <OracleHome>/javavm/doc/readme.txt in the section '2.1 Memory usage'