How to Add Row Filtering to an af:table which wasn't setup initially for this?

When you add an ADF Read Only table to a JSF page you can add "Row Filtering" to the table. Here is how to set this on a table which was not setup with "Row Filtering" and you now wish to enable it now.

1. Right click on the JSF page which contains the "af:table" and select "Go To Page Definition".

2. In the structure window right click on "Executables" and select "Insert inside executables -> search region".

3. Enter an ID as follows -> SrListQuery
4. Alter binding XML file so it adds these 3 attributes as shown.

<searchRegion
Binds="SrlistView1Iterator"
Criteria=""
Customizer="oracle.jbo.uicli.binding.JUSearchBindingCustomizer"
id="SrListQuery"/>

5. Switch back to the JSF page and go to the source editor and add 

these 3 attributes in bold to your "af:table". You must use "SrListQuery" 

which is the Id for the search region executable.

<af:table
value="#{bindings.SrlistView1.collectionModel}"
var="row" rows="#{bindings.SrlistView1.rangeSize}"
emptyText="#{bindings.SrlistView1.viewable ? 'No rows yet.' : 'Access Denied.'}"
fetchSize="#{bindings.SrlistView1.rangeSize}"
  filterModel="#{bindings.SrListQuery.queryDescriptor}"
  queryListener="#{bindings.SrListQuery.processQuery}" 
selectedRowKeys="#{bindings.SrlistView1.collectionModel.selectedRow}"
selectionListener="#{bindings.SrlistView1.collectionModel.makeCurrent}"
rowSelection="single" id="table"
filterVisible="true">

Finally we need to determine which columns we wish to allow filtering to occur for which we do as follows

6. Select the "af:column" tag in the structure window.
7. Click on the + symbol to expand the "Behavior" options in the property inspector.
8. Set "Filterable" to "true".
9. Repeat steps 6 - 8 for each column you wish to be filterable.

Now when you switch to design view of your JSF page you should see your table which has a row on the top of the table which enables row filtering for the columns you enabled this for.