ODA - Oracle object Dependencies Analyzer

Sunday, September 4, 2016

An example of a java bean usage in Oracle Forms(Copy/Paste text)

I always wanted to learn to use java in Oracle Forms. Oracle form is very limited on a client side and you often need to expand your possibilities by use java code.
And I have, at last, a task that can not be solved without the java usage.

There is my target: I need to write a form for a text template creating, where I can create such a template for example:
Dear <<Client Name>>
Please accept this purchase order <<Order number>>
Once it has shipped, you will receive a Shipping Confirmation email <<Email address>>.

Our dictionary of tags is:

  • Client Name
  • Order number
  • Email address
The template will be created in one multi-lined item.

I have few tags in my dictionary and I need to pass a tag from the dictionary to a multi-lined text item as easily as possible.
Our tags list is a multi-record block. I write the template and I want to insert a tag value at the position where I am now. I want to click the row with a necessary tag and the tag will be inserted programmatically in a current position in the editable item.

What's a difficulty of this action? Oracle form does not be able to insert text into an inner place of a multi-lined item if you navigate from/to the item.

To pass the tag to the template I want to do:
  1. to edit the template item and to place a cursor to a position where I'd like to insert a tag;
  2. to click the tag;
  3. to copy the tag value into system clipboard(Copy);
  4. to navigate to the template item(a focus navigates to the current position);
  5. to simulate Cntrl-V pressing(Paste).

The actions (1) and (3) I intend to process by Java Bean.

I create Java class CopyPasteClipBoard.java
There's its code:

package com.metro.beans;

import java.awt.Robot;
import java.awt.Toolkit;
import java.awt.datatransfer.Clipboard;
import java.awt.datatransfer.ClipboardOwner;
import java.awt.datatransfer.StringSelection;
import java.awt.datatransfer.Transferable;
import java.awt.event.KeyEvent;

import oracle.forms.handler.IHandler;
import oracle.forms.properties.ID;
import oracle.forms.ui.VBean;

public class CopyPasteClipBoard extends VBean implements ClipboardOwner{
static IHandler handler;
static String selectedText;

protected static final ID CopyText = ID.registerProperty(COPY_PROPERTY_NAME);
protected static final ID PasteText = ID.registerProperty(PASTE_PROPERTY_NAME);

public CopyPasteClipBoard(){

public void init(IHandler hand){
handler = hand;

public boolean setProperty(ID property, Object value){
boolean rc = true;
if (property == CopyText){
selectedText = (String)value;
StringSelection stringSelection = new StringSelection( selectedText );
Clipboard clipboard = Toolkit.getDefaultToolkit().getSystemClipboard();
clipboard.setContents( stringSelection, this );
} else if (property == PasteText){
try {
Robot r = new Robot();

}catch(Exception e){
return super.setProperty(property, value);
return rc;

public void lostOwnership(Clipboard arg0, Transferable arg1) {

public static void main(String[] args) {
CopyPasteClipBoard obj = new CopyPasteClipBoard();
obj.setProperty(CopyText, "tratata");
obj.setProperty(PasteText, "");

In Form:

I add a new "Bean Area" item to control block, visible  on some canvas with width=0 and height=0.
I set the "Implementation class" property value com.metro.beans.CopyPasteClipBoard(the package and class name).

I create an item TEMPLATES.TEMPLATE_EDIT for a template editing.
You need to switch the template item property "Keep Cursor Position" to "Yes".(Oracle, thanks for think about). This gives us to navigate to a same position if I leave and I enter to the template item.

I create a multi-record block TEMPLATE_TAGS with an item TAG_LABEL.

There's the "WHEN-MOUSE-UP" trigger's code of the tag item  :RM_TEMPLATE_TAGS.TAG_LABEL

v_dummy := ' <<'||:TEMPLATE_TAGS.TAG_LABEL||'>> ';
end if;

There are steps and problems you need to solve:

  • To export our java project with CopyPaste bean to CopyPasteJbeans.jar and to place one in 
(Forms 10)

(Forms 11 for me, development web logic installation) c:\Oracle\Middleware\user_projects\domains\FormsReports\servers\AdminServer\tmp\_WL_user\formsapp_11.1.2\7tyy89\war\metro_java\
  • For Oracle*Forms 11 version you need ORACLE signature for this JAR by jarsigner. In addition you must create directory maping in the file(for server web logic installation):
  • To add the jar file name to the parameter archive_jini in an appropriate section of formsweb.cfg 
  • For Forms 11 you must create 
  • For example:
     archive_jini = frmall_jinit.jar, CopyPasteJbeans.jar
  • To solve java permissions. You search the c:\Program Files\Oracle\JInitiator\lib\security\java.policy
    (this location for 10 version, for 11 version you need to search in %JAVA_HOME% path a file with same name) 
    and after row
// "standard" properties that can be read by anyone

      to add two rows

            permission java.awt.AWTPermission "accessClipboard";
          permission java.awt.AWTPermission "createRobot";

    I see one problem only: where do you place your JARs. I've give directory pathes, this can help...

    I wish you success

    No comments:

    Post a Comment