Basics of ADF :: Bindings

Hi,
I am new to ADF and created some simple search and create pages using jDeveloper.
However I am not getting cleared with the bindings and data control concepts as jDeveloper does all these things by itself.
Is there a way to create a very simple page, but without using any IDE like jDeveloper?
When I started JSF, I followed the same approach i.e. without any IDE, as done in this link:
http://java2apps2fusion.in/creating-first-jsf-application-without-using-any-ide/
--Sushant

Hi,
ADF is supported in Eclipse (OEPE) and Oracle JDeveloper. Unlike JSF which you can code in a text pad if you know the components, this is not intended for ADF and thus there is no XML metadata tag documentation for the different bindings and control elements
Frank

Similar Messages

Tomahawk and ADF bindings conflict

Hi, I use Tomahawk components <t:dataTable> and <t:dataScroller> to handle table with large number of rows (I learned from http://wiki.apache.org/myfaces/WorkingWithLargeTables)
The problem is that after I added ADF bindings to call EJB session bean methods, six navigation image buttons (first, last, previous, next, ff, fr) have been disabled. It seems that ADF does something to disable JavaScript code which activates these buttons (I noticed some changes have been made in faces-config.xml and web.xml). It took me 6 hours to find bugs but I've reached nowhere. :) Pls help me.
Thanks a lot!

Hi Frank, I have a method:
public List <SimpleCar> searchCar(int start, int rows);
in a session facade bean called CarFacadeBean.
And the following is the Page Definition.
<?xml version="1.0" encoding="UTF-8" ?>
<pageDefinition xmlns="http://xmlns.oracle.com/adfm/uimodel"
version="10.1.3.40.66" id="carsDataModelPageDef" Package="view.pageDefs">
<parameters/>
<executables>
<variableIterator id="variables"/>
</executables>
<bindings>
<methodAction id="searchCar" InstanceName="CarFacadeLocal.dataProvider"
DataControl="CarFacadeLocal" MethodName="searchCar"
RequiresUpdateModel="true" Action="999"
IsViewObjectMethod="false"
ReturnName="CarFacadeLocal.methodResults.CarFacadeLocal_dataProvider_searchCar_result">
<NamedData NDName="start" NDType="int" NDValue="15"/>
<NamedData NDName="rows" NDType="int" NDValue="15"/>
</methodAction>
</bindings>
</pageDefinition>
Then in backed beans, I put:
BindingContainer bindings = this.getBindings();
OperationBinding operationBinding = (OperationBinding) bindings.getOperationBinding("searchCar");
List <SimpleCar> cars = (List<SimpleCar>) operationBinding.execute();
to get the result set from EJB method (searchCar(start, rows)).
These are all basic things, I believe. The problem occurs only after I dragged the method searchCar from Data Control Pallete to the page (there is only one page in this testing view). May I upload the code to somewhere so that you can take a further look?
Regards,
Harry.

ADF bindings are not working with inheritance heirarchy.

ADF bindings are not working with inheritance heirarchy. I am using embedded OC4J in JDeveloper 10.1.3.2.
For the data model I have the following objects\attributes.
1) User (abstract EJB 3.0 POJO)
- Id
- userId
- userName
2) Employee -> extends User (EJB 3.0 POJO)
- enabled
- password
3) Manager -> extends Employee (EJB 3.0 POJO)
- numOfEmployees
4) UserSessionBean (Stateless Session Bean)
- public User findUserByUserId(String userId)
- public List<User> queryUserFindAll()
- Object mergeEntity(Object entity)
I created 2 JSF pages using ADF.
1) ListUsers.jspx - Lists all the users of type Employee and Manager in a table. You can select an user and chose to modify the user details using a modify button.
2) ModifyUser.jspx - Modify the selected user and persist the modified user details.
I implemented ListUsers.jspx by dragging and dropping queryUserFindAll() method from the ADF datacontrol on to the JSF page and selected ADF Table format with selection enabled.
Similarly for the ModifyUser.jspx page I dragged and dropped the User object returned by findUserByUserId(String userId) and selected ADF Form format. I selected OutputText field types for userId and userName.
I then created a navigation case from ListUsers.jspx to ModifyUser.jspx and pass the selected user.
Now when I try to run the web application, ListUsers.jspx correctly displays all the users. Then I select a user of type Employee and click on the modify button. This brings up the ModifyUser.jspx page. However, the UserId text field displays the value for "Id" field rather than "userId".
Question that I have is:
- Why is ADF framework not able to retrieve the appropriate user attribute value for a Employee based on the binding information in case of inheritance ?
Thanks,
Piyush

Hi,
tried with JDeveloper 10.1.3.3 and this works for me. Try JDeveloper 10.1.3.3 - if it doesn't work, have a closer look at your sessionFacade
Frank

ADF Bindings Servlet/Filter not invoking Faces Servlet

I'm getting ADF Faces and Facelets working properly with pages written in jspx format, but the Faces Servlet being mapped to jsf format.
The problem I'm getting is while displaying ADF Tables with data retrieved from the database using Toplink and bindings provided by ADF Databindings.
The following is the Web.xml mappings for Faces Servlet and ADF bindings filter:
<servlet>
<servlet-name>Faces Servlet</servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>resources</servlet-name>
<url-pattern>/adf/*</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>*.jsf</url-pattern>
</servlet-mapping>
<filter>
<filter-name>adfBindings</filter-name>
<filter-class>oracle.adf.model.servlet.ADFBindingFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>adfBindings</filter-name>
<url-pattern>*.jsp</url-pattern>
</filter-mapping>
<filter-mapping>
<filter-name>adfBindings</filter-name>
<url-pattern>*.jspx</url-pattern>
</filter-mapping>
I'm getting the ADF tables displayed using ADF Bindings, if the faces servlet is mapped for jspx format;but, at the cost of losing Facelets...Facelets is not working with Faces Servlet mapped to jspx format(though written in jspx format, the faces servlet mappping has to be made for jsf format.On the other hand, if I use faces servlet mapping for jsf pages I'm getting Facelets working but ADF Databindings are not working ,(I guess) and hence ADF Faces Tables are not being displayed(I'm getting Access Denied message).
I even tried to change the ADF binding filter mappings
---- from ---- jsp &jspx---- to ----- jsp and jsf ----
But I got the same Access denied message.
I read a similar post on this forum by Mr.Ashish Kumar who said he is using java script and automatic form submission, to refresh the page and that gave him the table working.
as quoted in the post:
af:table displays Access Denied
Why should the page be refreshed at all. I Guess , the Faces Servlet is not being invoked by the ADF Bindings Filter/Servlet, and for this , I suppose , Mr.Ashish is using java script to provide the action required.
And one more thing which that Automatic Refreshing of page using JavaScript cannot do.
Suppose,
I need customised display, rather than just a Table or Form,like:
public String getEmp() {
BindingContainer bindings = getBindings();
OperationBinding operationBinding =
bindings.getOperationBinding("findAllEmp");
Object result = operationBinding.execute();
if (!operationBinding.getErrors().isEmpty()) {
return null;
List<Emp> res=(List<Emp>)result;
for(int i=0;i<res.size();i++)
Emp myrec=res.get(i);
System.out.println("Employee ["+myrec.getEname()+"], Salary ["+myrec.getSal()+"]");
return "";
where I do some customisation in the backing bean.
and I call that method binded to a button as below:
<af:commandButton
text="findAllEmp"
disabled="#{!bindings.findAllEmp.enabled}"
binding="#{backing_Success.commandButton1}"
id="commandButton1"
action="#{backing_Success.getEmp}"/>
What I'm getting is a disabled button.
Why doesn't ADF bindings servlet invoke the faces Servlet?
Can't we make ADF Bindings Servlet invoke Faces Servlet by configuring in the web.xml?
Can't we get ADF Bindings filter mapped to work with jsf pages?
Won't ADF Bindings work with jsf pages, will they work only with jspx pages?
ADF Team,
Please Help me.
Thanking you,
Samba

Hi! Frank,
Thankyou for your Reply.
Yes, Mr.Adam Winer has contributed that library, I guess.
But I already have that adf-facelets.jar in my lib folder ; and with out that the Facelets won't work with ADF faces , in the first place.
I'm getting Facelets working excellently with ADF Faces but I'm not getting ADF Bindings working with Faceletpages.
The thing is even in another application which does not have facelets in it, if we use mapping for jsf pages, ADF Bindings are not working.
I think the ADF bindings filter is configured some where to work with jspx pages only.Could you tell me where to change that entry to make ADF Bindings work with jsf extension?
Thanking you,
Samba.

ADF Bindings CRUD with either JDBC or Hibernate

Does anyone know of an example CRUD application that uses ADF Bindings and either Hibernate or JDBC.
The site...
http://technology.amis.nl/blog/index.php?p=765
uses ADF Bindings and Hibernate, but does not update a database.
I have attempted to do this myself, but when my add/edit page loads, all of my af:inputtext controls display labels instead of input boxes.
There are several ADF Biding examples for both Toplink and ADF BC, but if anyone can point me in the direction of examples for JDBC and/or Hibernate, I would appreciate it.

I have created the target datacontrol for ADF Binding.
In my DataContorls.dcx file, my datacontrol (a JavaBeanDataControl, not an AdapterDataControl) has its SupportsUpdates attribute = "false".
When I create a form, the #{bindings.<my_property>.updateable} expression returns false, making it so my af:inputText controls cannot take input data. If I manually set SupportUpdates="true", my #{bindings.<my_property>.updateable} expression still returns false.
If anyone knows how to set it so I can make it so I can update my java objects, I think I will be set.
Any help would be appreciated.

ADF Bindings are corrupted when non-ADF Bound resource is referenced first

I have an application that uses ADF BC binding on JSF pages. I recently wrote an image servlet which pulls an image out of the DB and writes it back to the response (so that it can be referenced in an <img> tag, for example). I wrote it to use BC4J to fetch the image BLOB, but it does not reference any page bindings. I use the following to get the app module:
        ImageAmImpl imageAm = (ImageAmImpl) Configuration
          .createRootApplicationModule( "myTestPackage.ImageAm",
                                        "ImageAmLocal" );and the following in a finally block at the end to release it:
        Configuration.releaseRootApplicationModule( imageAm, true );In debugging the image servlet I found that if I hit the image servlet before anything else, my data bindings for other pages appeared to be corrupted.
For example:
Server starts
Then I go to http://127.0.0.1:7101/myApp/imageServlet?imageId=760
Then I go to http://127.0.0.1:7101/myApp/faces/testListPage.jspx which contains an ADF data bound table, and the table is empty.
Similarly:
Server starts
Then I go to http://127.0.0.1:7101/myApp/faces/testListPage.jspx and the table is populated fine.
Then I go to http://127.0.0.1:7101/myApp/imageServlet?imageId=760
I then go back to the table, it’s still populated, but I then have an edit button allowing me to edit an item in the table and my LOV drop down lists (based on ADF bindings) are not populated.
After doing some poking around in web.xml, I realized that only the faces servlet was behind the oracle.adf.model.servlet.ADFBindingFilter. I put the imageServlet behind this filter and everything is working fine now. I’m at a bit of a loss, though, as to why this works. I would expect the binding filter to only be required for resources that access ADF bindings, and the image servlet does not … it operates directly on a checked out app module. While the problem appears to be resolved, I'd like to have a better understanding of why it was broken in the first place and why putting the image servlet behind the ADF Binding filter fixed it.

As far as I can understand, Configuration.createRootApplicationModule() should not be used. This method call is intended for use in an unmanaged mode, i.e. Java client.
Check-out some of the following:
Check Your App for Misuse of Configuration.createRootApplicationModule()
When should I use Configuration.createRootApplicationModule(), and when not?
Regards,
Nick
Edited by: Nick Haralabidis on May 18, 2010 12:15 PM

DWR + ADF Bindings get Binding Container at the Filter level

Hi I'm still pressing on to use DWR with the ADF Bindings.
To do this, The managed bean method called from javascript needs access to the BindingContainer object or the "#{bindings}" property which is not available out of the box when setting up DWR according to their documentation. So I need to maybe an additional filter or extend the DwrFilter to do this.
Any ideas how to get or create the bindingContainer object or the "bindings" during the execution of the FacesFilter stage?

Hi,
see Duncan Mills article about Ajax auto suggest: http://www.oracle.com/technology/products/jdev/tips/mills/AjaxAutoSuggest/AjaxAutoSuggest.html
pay an extra attention to the way he configured a pageDef file for the suggest servlet
Frank

Why is ADF Bindings node not displayed in Expression Builder window?

Hello,
I'm using Oracle JDeveloper Studio Edition Version 11.1.1.1.0, and I've created a Fusion Web Application and I've configured ADF Authentication and Security for my web project, using the provided wizard.
On a certain page, I've placed a Go Link component, and I'm trying to edit the Text and Destination Property using EL Expressions. When I open the Expression Builder window all I can see are the following nodes: ADF Controller Objects, ADF Managed Beans, JSF Managed Beans and JSP Objects, but no ADF Bindings. I need to access the securityContext properties, and from what I've read in B31974-03, I need ADF Bindings.
Also, I've tryied using the search field from the Expression Builder windows, without any luck.
This is probably a newbie problem, but I really can't figure it out. Please help.
Bogdan.

Hi,
maybe your problem is that you don't have created pageDef related with your page. Try right click on your page and Go To Page Definition. It will create the related pageDef if it does not exist.
Hope this helps
Joseba

About the adf Bindings object

As far as I know, the page definition xml defines the datasource(such as the return method in the data control panel) of the .jspx page. when i intend to show the label text dynamically, i should use the Expression builder. then it popups a dialog where i can build the el visually. the problem is
1.when the label is in a table,then i can build the el in two ways:#{row.name} or #{row.bindings.name.inputValue}. what's the difference?
2.if the label is in a tree, i will have to use another variable node,so it's:#{node.name}. i want to know where the variable "row" and "node" is defined?
Besides, there are aslo objects: adf bindings,adf managed beans,jsp objects. how and when should i use me? some detail learning materials are expected. because it' hard to explain in words.
Edited by: Tom on 2011-8-4 下午7:14

Here is the explanation assuming model as ADFBC,
row.name
row here is a ViewRowImpl class, if you have any custom rowimpl class generated for the view object, it would be referring that else refers to ViewRowImpl. row.name uses introspection and calls getName() method inside ViewRowImpl or custom row impl class.
Here, the first letter of name should be lower case always so that the introspection would be applied
row.binding.name.inputValue
Gets the current row attribute value from the binding instead from the row directly. Here the case of the name should match the attribute name in view object. If the attribute name is "Name", EL should be "row.binding.Name.inputValue" or if it is "name", EL should be "row.binding.name.inputValue"
HTH
Sireesha

JPA persistence and ADF bindings help!!

Environment:
Jdev 10.1.3.1
EJB 3.0 JPA toplink essentials+JSF
I'm usind ADF data control to map persistence action to bindings
I find an example to map "save" button to "merge" method and all work
please anybody knows how to use or where find example about
"persist" method to create a new entity instance and how to mapping to a button?
Thank u in advance
Francesco Galante

Hi,
to persist the information you enter in a form, create a input form based on the object's constructor. There is a spcial constructor node in teh ADF Datacontrol palette. In the form creation dialog, add a submit button ( as checkbox option)
In teh data control palette, select the persist() method optionand drag this node over the submit button. Choose the "bind to existing button" option from the context menu. Thsi will change the button label, which you can change in the button's property
A dialog is shown that asks you to provide a value for the object. When you click into this field, a button [...] show that you use to launch the ExpressionLanguage editor.
in the editor, select the Iterator binding entry and choose the "DataProvider" subelement to bind the input form to the persist method.
As Shay mentioned this is all described in basic TopLink / EJB tutorials on OTN
Frank

ADF Bindings Factory

I am new to ADF and am developing an application that will be used to edit PL/SQL rules. The application consists of four .jspx pages. Login and Failed Login and then a search page with the results conditionally displayed on the same page and an edit form. The application was modeled after the SRDemo (ADF BC) in the developers guide. I am using JDeveloper Studio Edition Version 10.1.1.0.4 (SU4). The login pages I created are bound to a managed bean are working correctly. The Search page gives an error when tested with the embedded OC4J server.
The error is as follows:
javax.faces.el.PropertyNotFoundException: Error testing property 'inputValue' in bean of type null
On the Search page I have three input fields that are tied to three bind variables in an instance of a view object.The code for the input fields is found below.
<af:inputText value="#{bindings.applicationName.inputValue}"
label="Application Name"
columns="#{bindings.applicationName.displayWidth}"
binding="#{backing_WTRuleSearchBrowse.inputText1}"
id="inputText1">
</af:inputText>
<af:inputText value="#{bindings.frmName.inputValue}"
label="Form Name"
required="#{bindings.frmName.mandatory}"
columns="#{bindings.frmName.displayWidth}"
binding="#{backing_WTRuleSearchBrowse.inputText2}"
id="inputText2"></af:inputText>
<af:inputText value="#{bindings.fldName.inputValue}"
label="Field Name"
required="#{bindings.fldName.mandatory}"
columns="#{bindings.fldName.displayWidth}"
binding="#{backing_WTRuleSearchBrowse.inputText3}"
id="inputText3">
</af:inputText>
Here is the code for the named variables from the page def
<action id="ExecuteWithParams" IterBinding="ResultsIterator"
InstanceName="WTRuleModuleDataControl.RulesByCritInstance"
DataControl="WTRuleModuleDataControl" RequiresUpdateModel="true"
Action="95">
<NamedData NDName="applicationName"
NDValue="${bindings.RulesByCritInstance_applicationName}"
NDType="java.lang.String"/>
<NamedData NDName="frmName"
NDValue="${bindings.RulesByCritInstance_frmName}"
NDType="java.lang.String"/>
<NamedData NDName="fldName"
NDValue="${bindings.RulesByCritInstance_fldName}"
NDType="java.lang.String"/>
</action>
Code from faces-config.xml showing the managed bean
<managed-bean>
<managed-bean-name>backing_WTRuleSearchBrowse</managed-bean-name>
<managed-bean-class>userinterface.backing.WTRuleSearchBrowse</managed-bean-class>
<managed-bean-scope>request</managed-bean-scope>

</managed-bean>
I have extensively checked the forums, read the developers guide and 'googled' as well and cannot seem to determine a solution.
I enabled the more detailed error logging per the debugging document and came up with this error
FINE: Couldn't find a factory for bindings
Aug 21, 2006 10:44:38 AM com.sun.faces.el.VariableResolverImpl resolveVariable
FINE: resolveVariable: Resolved variable:null
Aug 21, 2006 10:44:38 AM com.sun.faces.el.ValueBindingImpl isReadOnly
FINE: isReadOnly Evaluation threw exception:
javax.faces.el.PropertyNotFoundException: Error testing property 'inputValue' in bean of type null
Has anyone ran into this error before and developed a solution to it.
Thank you in advance. If I have excluded any pertinent information please don't hesitate to say so.

Frank,
Thank you for your reply. The error ended up being related to my entries in web.xml. I had this entry
<filter-mapping>
<filter-name>ADFBindingFilter</filter-name>
<url-pattern>*.jsp</url-pattern>
</filter-mapping>
But not the following entry.
<filter-mapping>
<filter-name>ADFBindingFilter</filter-name>
<url-pattern>*.jspx</url-pattern>
</filter-mapping>
My first two of four pages did not use ADF components or bindings so I have to assume that is why they worked properly without the mapping. I got to the point where I was trying anything and probably overlooked the obvious.

Adf bindings of an included page

I'm using adf/jsf, jdev 10.1.3.4. I'm trying to use the af:menuBar component in conjunction with the af dialog/popup functionality. More specifically, when the user clicks a menu item to navigate, if there are changes to the data on the current page (transaction is dirty), I want the popup dialog to ask the user if they want to save the changes before navigating.
I've got this working from a simple command button on a jspx page. However, the first issue I'm having with trying to implement this from the menuBar component is that the menuBar is an included page. I use injection in the faces-config to inject the bindings into the backing bean associated with the 'master' page:
<managed-bean>
<managed-bean-name>backing_ApplSrch</managed-bean-name>
<managed-bean-class>view.backing.setup.applications.ApplSrch</managed-bean-class>
<managed-bean-scope>request</managed-bean-scope>
<managed-property>
<property-name>bindings</property-name>
<value>#{bindings}</value>
</managed-property>
</managed-bean>
The code, which is in the backing bean for the page, that determines if the transaction is dirty looks like this:
protected boolean isDirty(){
Boolean b;
if (bindings == null){
return false;
b = ((Boolean) JSFUtils.resolveExpression("#{bindings.Commit.enabled}"));
// if there is no commit binding, the form is by definition not dirty
if (b == null){
return false;
return b.booleanValue();
My problem is that when this code checks the bindings value, it's always null. So, the tranaction is never dirty, even when i know it is. I assume this is due to the fact that the code is checking for any bindings in a pageDef behind the menuBar.jspx instead of checking the bindings in the pageDef behind the 'main' page.
Right now, the only solution I can think of would be not to include the menu jsp and instead add the code for it to every jsp page. However, from a reusability/maintenance standpoint, I'd rather not do it this way. Anyone have any ideas on how i can determine if transaction is dirty from an included page?

I figured out the solution to that particular problem. Thanks.

ADF Bindings

Hi,
I use ADF faces and JDEV 11.1.1.2.0.
I always create my pages with the option 'automatically expose UI components in a managed bean'. And this morning new components where visable in the backing bean.
But if I but a new component(button for example) on the page, then that is not exposed in the bean?
What could that be?
I already tried the menu Design->page properties, but there my beans are not visable in the lov.

Hi,
sireesha :
I think binding property will be shown(in property inspector) only when you have the backing bean associated to the page.this is not a true because if you drag and drop selectOneChoice on a page with no backing bean associated to this page you will find the Binding property (in property inspector).
I find it in the advanced tab in property inspector.
if you do not find it try to goto source code of your page and write it as:
<af:selectOneChoice label="Label 1" id="soc1" Binding="#{myBackingBean.mySoc1}">
<f:selectItems value="" id="si1"/>
</af:selectOneChoice>Sameh Nassar

ADF Bindings with LOV

Hi,
I have a list of values field on my page and when i select a value from this, it defaults the values to the other fields too. However these(defaulted fields) are not getting saved eventhough i set the property for these fields as Autosubmit=true.Any ideas?
Thanks,
Lakshmi.

Hi Shay,
I set the partial trigger to the parent item. but still the same. I was able to default the child items when a parent item is selected. However, the data structure i have is an XML data and not from a VO.
1. My adf table is based on XML payload.
2. Created a VO with 3 columns
3. Created 3 new columns in the adf table.One of them is Input List of values
4. Drag and dropped the 3 feilds from VO data control onto these fields
when i run this page, i can select the values from the LOV and it gets defaulted to the remaining 2 fields.
Now i want to populate the 3rd field value into one of the columns(which is not in the VO) in the adf table.
Thanks,
Lakshmi.

UIX Custom table layout with ADF Bindings

hello,
Please point me to examples of binding ADF data controls on UIX table and also the UIX table layout with different row and col spans.
Thanks in Advance.

bump.

Basics of ADF :: Bindings

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