Calling PL/SQL Package in the same connection

Question

I have a PL/SQL Package MYPCKG, stored in the database, with a function GETDFLT(). I need it to initiate the default values for fields (Attributes) of an EntityImpl Object (EOImpl) in its create method.
I used JPublisher to generate a wrapper class of the package, named MyPckg. It has three Constructors: MyPckg (),MyPckg (ConnectionContext c) and MyPckg (Connection c). The problem is that I dont know how to use the existing connection of EntityImpl object (or of ApplicationModuleImpl) to create a new MyPckg object.
The example below makes a new connection to database:
public class EOImpl extends oracle.jbo.server.EntityImpl {
public void create(AttributeList attributeList) {
Oracle.connect("jdbc:oracle:thin:@host:1521:DB1", "user", "pwd");
MyPckg dflts = new MyPckg ();
setField1 (dflts.getDflt ());
I believed that I can do it through DBTransaction but I couldnt find a relationship between DBTransaction and java.sql.Connection or sqlj.runtime.ConnectionContext.
In MetaLink, I found a couple of items with the same problem, but they appear not to be answered.
Thanks in advance
Mirza
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Answer 1

Thank you very much for replay.
The suggested technique uses JDBC. In fact, I wanted to use BC4J Entity Object and embedded SQLJ (generated by JPublisher). In the JDeveloper Help Topic Embedding SQL in Java Programs with JDBCstays: JDBC provides Java programs with low-level access to databases. If your application or applet uses purely static SQL, where you know the database schema at compile time, you should consider using SQLJ instead. So what I am looking for is how to get a java.sql.Connection or sqlj.runtime.ConnectionContext or sqlj.runtime.ref.DefaultContext Object from some BC4J Object (ApplicationModule or Entity).
Thanks in advance
Mirza