Java Development Tools

Hi!

I have a problem with combining fileDownloadActionListener and BLOB returned by PL/SQL function.

Simply, I have a ADF table with some parameters for function and commandLink in each row. CommandLink calls some Java (getBlob method) to get BLOB (BlobDomain) from PL/SQL function. This part works perfectly.

Next, fileDownloadActionListener should call some method like this:

    public void downloadImage(FacesContext facesContext, OutputStream outputStream)
    {
        BindingContainer bindings = BindingContext.getCurrent().getCurrentBindingsEntry();

        // get an ADF attributevalue from the ADF page definitions
        AttributeBinding attr = (AttributeBinding) bindings.getControlBinding("getBlob");
        if (attr == null)
        {
            return;
        }

        // the value is a BlobDomain data type
        BlobDomain blob = (BlobDomain) attr.getInputValue();

        try
        {   // copy hte data from the BlobDomain to the output stream
            IOUtils.copy(blob.getInputStream(), outputStream);
            // cloase the blob to release the recources
            blob.closeInputStream();
            // flush the outout stream
            outputStream.flush();
        }
        catch (IOException e)
        {
            // handle errors
            e.printStackTrace();
            FacesMessage msg = new FacesMessage(FacesMessage.SEVERITY_ERROR, e.getMessage(), "");
            FacesContext.getCurrentInstance().addMessage(null, msg);
        }
    }

and here is the problem: I get blank page. No errors, just nothing.

I'm not sure what is wrong. Thanks for any help.

I'm runing JDeveloper 11.1.1.6.0