How to call Oracle function or stored procedure using spring persistence framework?

Question

I am using Spring persistence framework for my project. I want to call oracle function or stored procedure from this framework.

Can anybody suggest how can I achieve

Answer 1

Simpler way of calling a Oracle function in Spring is subclassing StoredProcedure like below

public class MyStoredProcedure extends StoredProcedure{
    private static final String SQL = "package.function";

    public MyStoredProcedure(DataSource ds){
        super(ds,SQL);
        declareParameter(new SqlOutParameter("param_out",Types.NUMERIC));
        declareParameter(new SqlParameter("param_in",Types.NUMERIC));
        setFunction(true);//you must set this as it distinguishes it from a sproc
        compile();
    }

    public String execute(Long rdsId){
        Map in = new HashMap();
        in.put("param_in",rdsId);
        Map out = execute(in);
        if(!out.isEmpty())
            return out.get("param_out").toString();
        else
            return null;
    }
}

And call it like this

@Autowired DataSource ds;
MyStoredProcedure sp = new MyStoredProcedure(ds);
String i = sp.execute(1l);

The Oracle function used here just takes in a numeric parameter and returns a numeric paramter.