Message Types and bpel:exec

Question

I'm trying to determine if BPEL will allow me to reuse existing DAO code by testing this little example. So far, I have the following code in a Java Embedding activity...
java.util.ArrayList movies = com.package.MovieDAO.getMovies();
for(int i = 0; i < movies.size(); i++) {
setVariableData("outputVariable", "payload",
"Movies/title", ((com.package.Movie)movies.get(i)).getTitle());
I've altered my outputVariable Message Type to be "MoviesCollection" of the Movies.xsd from the BPEL DBAdapter examples. I was hoping to get a XML response payload containing a collection of all the movies in the table, however, instead I get this...
<MoviesCollection>
<Movies>
<title>Darkness</title>
</Movies>
</MoviesCollection>
"Darkness" is of course the last movie title in the ResultSet. Anyone have an idea how to get a collection of all the Movies in the database? Much like the DB_SelectAll example.

Answer 1

You could use a PL/SQL stored procedure to query the table. Then use a Java stored procedure to convert the java.sql.ResultSet into a java.sql.Array. The Array represents an Oracle nested table of objects, which is the entire collection of Movies. A sample that demonstrates this use case has been provided. Look at DB_ResultSetConverter for complete details.