Is there any way to make all the inputComponents readon-only in a page

Question

Hi All,
Is there any way by which we can make all the inputComponents belong to a specific iterator as read-only..?
Depending on some condition I want to make all the editable components which belong to a particular iterator, in page to read-only. I can put an expression in the read-only property of all the inputFields
and make them read-only depending on a condition. But this is going to be difficult as we have a lot of pagefragments and Task-flows.
So I think I can do it programmatically. I can add this method as an method binding in the container jsff. So that it will do the job for all the pages [pages may be inside a region also ].
Can any one give a similar code segment to do this..?
Is this approach going to impact performance badly..?
Any comments...
Thanks

Answer 1

Hi Chacko
Have a look at [Advanced View object Techniqies|http://download.oracle.com/docs/cd/E12839_01/web.1111/b31974/bcadvvo.htm#sthref3138] at the bottom Example 38-32 Preventing Insert, Update, or Delete Based on Custom Properties
<pre>
Example 38-32 Preventing Insert, Update, or Delete Based on Custom Properties
public class CustomViewRowImpl extends ViewRowImpl {
public boolean isAttributeUpdateable(int index) {
if (hasEntities() &&
((isNewOrInitialized() && !isInsertAllowed()) ||
(isModifiedOrUnmodified() && !isUpdateAllowed()))) {
return false;
return super.isAttributeUpdateable(index);
protected void setAttributeInternal(int index, Object val) {
if (hasEntities()) {
if (isNewOrInitialized() && !isInsertAllowed())
throw new JboException("No inserts allowed in this view");
else if (isModifiedOrUnmodified() && !isUpdateAllowed())
throw new JboException("No updates allowed in this view");
super.setAttributeInternal(index, val);
public void remove() {
if (!hasEntities() || isDeleteAllowed() || isNewOrInitialized())
super.remove();
else
throw new JboException("Delete not allowed in this view");
protected void create(AttributeList nvp) {
if (isInsertAllowed()) {
super.create(nvp);
} else {
throw new JboException("Insert not allowed in this view");
// private helper methods omitted from this example
</pre>
Hope, this will help you :)
Regards,
JavaDeVeLoper