Oracle EBS OAF attachment to be updated / deleted by creator only

Have you ever got a requirement in Oracle EBS FND attachments where in multiple users can add an attachment of the same category but only the person who has created it can delete or update it.

 For others delete and update column will be disabled. I achieved it recently in OAF by creating a custom DataBoundValueVIewObject class and associating it with update and delete icons of the attachment table. Since attachment table is a seeded region, I had to extend its controller to associate custom DataBoundValueVIewObject with update and delete icons.

1. Create a custom DataBoundValueViewObject (xxOADataBoundValueViewObject ) class:
   
   
   
   
   
   
   
   
    package oracle.apps.xx.webui;
   
   
   import java.util.Enumeration;
   
   
   import oracle.apps.fnd.framework.webui.OADataBoundValueViewObject;
   
   
   import oracle.apps.fnd.framework.webui.OAPageContext;
   import oracle.apps.fnd.framework.webui.OARenderingContext;
   import oracle.apps.fnd.framework.webui.OAWebBeanUtils;
   import oracle.apps.fnd.framework.webui.beans.OAImageBean;
   import oracle.apps.fnd.framework.webui.beans.OAWebBean;
   
   
   import oracle.apps.fnd.framework.webui.beans.message.OAMessageCheckBoxBean;
   import oracle.apps.fnd.framework.webui.beans.table.OAColumnBean;
   
   
   import oracle.cabo.style.CSSStyle;
   import oracle.cabo.ui.RenderingContext;
   import oracle.cabo.ui.UINode;
   
   
   
   
   public class xxOADataBoundValueViewObject extends OADataBoundValueViewObject {
       public String loggedInUser;
       public String property;
       public xxOADataBoundValueViewObject(OAWebBean p1, String p2, String p3, String p4) {
           super(p1, p2);
          loggedInUser = p3;
           property = p4;
          
       }
      
       public Object getValue(RenderingContext renderingContext) {
           String value = (String)super.getValue(renderingContext);
          
           if(loggedInUser != null && value != null && !loggedInUser.equals(value))
           {
               if("disabled".equals(property))
                   return true;
               if("source".equals(property) && "UpdateSwitcher".equals(mOAWebBean.getID()))
                   return "/OA_MEDIA/updateicon_disabled.gif";
               else if("source".equals(property) && "DeleteSwitcher".equals(mOAWebBean.getID()))
                   return "/OA_MEDIA/deleteicon_disabled.gif";
           }
           if("source".equals(property)  && "UpdateSwitcher".equals(mOAWebBean.getID())) {
                   return "/OA_MEDIA/updateicon_enabled.gif";
           }
           else if("source".equals(property)  && "DeleteSwitcher".equals(mOAWebBean.getID())) {
               return "/OA_MEDIA/deleteicon_enabled.gif";
           }
           return false;
       }
      
   }                                                                                                                                                                                                     
2. Extend AkAttachmentTableCO (standard controller for Attachment Table)                                                                                                                                                                Create a new class say xxhrAkAttachmentTableCO. Personalize OAAttachmentTablePG and  mention xxhrAkAttachmentTableCO as the controller.
   
   
   
   
   package oracle.apps.xx.ak.webui;
   
   
   
   import java.util.Enumeration;
   
   
   import oracle.apps.fnd.framework.webui.OABoundValueELEvaluator;
   import oracle.apps.fnd.framework.webui.OAPageContext;
   import oracle.apps.fnd.framework.webui.OAWebBeanConstants;
   import oracle.apps.fnd.framework.webui.beans.OAImageBean;
   import oracle.apps.fnd.framework.webui.beans.OAWebBean;
   import oracle.apps.fnd.framework.webui.beans.message.OAMessageTextInputBean;
   
   
   import oracle.apps.xx.webui.xxhrOADataBoundValueViewObject;
   
   
   import oracle.cabo.ui.UIConstants;
   
   
   public class xxhrAkAttachmentTableCO extends oracle.apps.ak.attach.webui.AkAttachmentTableCO {
       public xxhrAkAttachmentTableCO() {
       }
   
   
       public void processRequest(OAPageContext oapagecontext,
                                  OAWebBean oawebbean) {
           super.processRequest(oapagecontext, oawebbean);
          
           String entityName = (String)oapagecontext.getTransactionValue("EntityName");
           if("XX_ATTACHMENT".equals(entityName)) {
               OAImageBean updateSwitcher = (OAImageBean)oawebbean.findChildRecursive("UpdateSwitcher");
               xxOADataBoundValueViewObject  boundValue = new xxOADataBoundValueViewObject(updateSwitcher, "LastUpdatedByName", oapagecontext.getUserName(), "disabled");
               xxOADataBoundValueViewObject  boundValue2 = new xxOADataBoundValueViewObject(updateSwitcher, "LastUpdatedByName", oapagecontext.getUserName(), "source");
               updateSwitcher.setAttributeValue(OAWebBeanConstants.DISABLED_ATTR, boundValue);
               updateSwitcher.setAttributeValue(OAWebBeanConstants.SOURCE_ATTR, boundValue2);
              
               OAImageBean deleteSwitcher = (OAImageBean)oawebbean.findChildRecursive("DeleteSwitcher");
               xxOADataBoundValueViewObject  boundValue3 = new xxOADataBoundValueViewObject(deleteSwitcher, "LastUpdatedByName", oapagecontext.getUserName(), "disabled");
               xxOADataBoundValueViewObject  boundValue4 = new xxOADataBoundValueViewObject(deleteSwitcher, "LastUpdatedByName", oapagecontext.getUserName(), "source");
               deleteSwitcher.setAttributeValue(OAWebBeanConstants.DISABLED_ATTR, boundValue3);
               deleteSwitcher.setAttributeValue(OAWebBeanConstants.SOURCE_ATTR, boundValue4);
           }
       }
   
   
       public void processFormRequest(OAPageContext oapagecontext,
                                      OAWebBean oawebbean) {
           super.processFormRequest(oapagecontext, oawebbean);
   
   
       }
   }                                                                                                                                                                                                            
3. In processRequest of your main page controller add the below:

oapagecontext.putTransactionValue("EntityName","XX_ATTACHMENT");