How to use ExecuteWithParams to pass a list as parameter

Question

Hi All,
I need to have a read-only View from SQL with the following script Select * from XXXX_Table where ID is in (:ID_LIST)"
So for example, the script will be something like "Select * from XXXX_Table where ID is in ('d1','d2') "
How do I compose the parameter :ID_LIST from the frond end? I try to use
OperationBinding operationBinding = bindings.getOperationBinding("ExecuteWithParams");
operationBinding.getParamsMap().put("ID_LIST", " 'd1','d2' "); // ID_LIST is set to expression (string type) in the view object
It does not work. I also try to use operationBinding.getParamsMap().put("ID_LIST", an_arraylist); not working either.
It is working fine if I input only one ID, i.e operationBinding.getParamsMap().put("ID_LIST", " d1 "). But operationBinding.getParamsMap().put("ID_LIST", " d1, d2 ") doesn't.
I spend several hours in trying all kinds of combination in parameters types(String, Object, Array) and parameters composed, none of them work. I believe the problem is the single quoto...
Any one had soloved it before?

Answer 1

The first thing you need is a Nested Table type in the database. I created one with:
CREATE TYPE vc_arraytype AS TABLE OF VARCHAR2(4000);This allows you to pass arrays to SQL. Now theoretically, you should now be able to do this in the where clause of your View Object's query:
WHERE myfield in CAST(:myArrayParameter AS vc_arraytype)All you should have to do is specify the where clause parameter named myArrayParameter as a java.sql.Array, and ADF should do the conversions properly. But as of JDeveloper 10.1.3.5 it didn't work that way. I don't know if it works in 11g, because I'm not using it very much yet.
So instead, I do some of my own conversions to make this work:
    private Connection getCurrentConnection() throws SQLException {
        PreparedStatement st =
            getDBTransaction().createPreparedStatement("commit", 1);
        Connection conn = st.getConnection();
        st.close();
        return conn;
    private synchronized void setupDescriptor(Connection conn) throws SQLException {
        descriptor = new ArrayDescriptor("COMMON.VC_ARRAYTYPE", conn);
    private Array toArray(ArrayList<String> theArray) {
        Array arr = null;
        try {
            Connection conn = getCurrentConnection();
            if (descriptor == null) {
                setupDescriptor(conn);
            arr = new Array(descriptor, conn, theArray.toArray());
        } catch (SQLException s) {
            s.printStackTrace();
        return arr;
    }