ADF : Resolved! Failed to convert internal representation error in ADF

While development some times this error occurs in VO's and EO's in ADF.

Main Cause : The main cause of this error is that the Datatype mismatch of the Columns in Database and  in ViewObject (or Entity Object).

For example : Suppose you have a DEPT_ID String Column in the Database of type String and in EntityObject or ViewOject its type is Integer then this error will occur.

What happens is that when the framework tries to convert the value in the database i.e (String in this case like 'DEPT_01') to the type defined in the ViewObject or EntityObject i.e. Integer, then it fails to type cast 'DEPT_01' to Integer as it contains character that cannot be converted to Integer and this error is thrown.

Solution : Make sure the all the datatype of all the attributes in the ViewObect or EntityObject are in Sync with the database and there is not mismatch.

ADF : af:table or adf form or adf page taking too much time to load

During the development sometimes we come across this problem. In our case we had a table on a page and it was taking too much time to load, even though there were only one row in the database table but then also it was taking more than enough time to load. After the analysing the problem finally we were able to solved the problem.

The main problem was with the List of Values with SingleSelection which was inserted in the table. In a column we had to show the name in place of the id, so the developer created a List of Values in the viewObject and put it in the table on page. At first it was working fine but later as the number of rows grown in the List of values the list started taking time to load.

The main cause was the number of rows in the list of values. Single selection list of values matches the id with the value and shows values, so inorder to map it needs all the rows, so whenever the table was being load the ListOfValues started to fetch all the rows, and as the number of rows was too much so abviously it was taking too much time. So, we had to replace the list of values but we also had to show the name in place of id. 

So there are many ways to do that : 

1. We can include the name that we have to display in the query of the table itself, because of which we can simply display it in a column.

2. Otherwise we have to use a viewobject with query that returns a less number of rows and better if it returns one row with the id and DisplayName. 

Suppose we have to show Department Name in place of department id in Employees Table. The query will be something like this : SELECT DEPARTMENT_NAME FROM DEPARTMENTS WHERE DEPARTMENT_ID = :DeptIdBind

And then we need to show the display name so we created a transient attribute.

Then in the getter of the transient attribute, get the viewObject and pass the bindVariables and execute the query. The query will return a row and then we can fetch the name from the view object and show it by returning it.

There is a disadvantage of using this method, as the query is executed for all the rows fetched in the table. But page load problem will be solved. 

This may depend on the use case.  For us both worked well.

I will suggest never to use SingleSelection List of Values that contains large number of rows in the page. Not even on the adf form. Because due to that it will take too much time to load.

Thanks for reading. If you have any question, Please feel free to ask.

ADF : Alternate of Current Row Selection In af:table | Using f:attribute in ADF

Today am about to show how we can get the value of the selected row from a table without using the RowSelection property of the table.

This came to my mind when I was working on an editable table on a PopUp. And the scenario was that when the user clicks on a link or button in the table then an another table on a new popup need to be shown. The other thing was that both the tables contains large number of rows.

The problem was when we were selecting the current row in table the Framework was trying to make the selected row as current, because of which it was refreshing the table.So every time I select a row the whole table was being refreshed to set selected row as current.

So I tried out some other way to to the same.

Here is the sample Application .

I have created a Application with HR Schema with Employee and Department tables. On the page I have dropped two popUps, First for department table and second for employee table.

Drag the Department table on the popup and set rowSelection to none.

Put a Command button the department table. And add an f:attribute in the commandButton and give it a name and value as department id.

Here I have used Department Id as it is the key to department table like wise you can use user primary key as key. And then you can find the row from the key.

Then on other popup drag the employee table.

In the employees table create a viewCriteria on DepartmentId.

On click on OpenEmployee button, I have used a method to get the attibute.

    public void openEmpACTION(ActionEvent actionEvent) {
        RichCommandButton ob = (RichCommandButton)actionEvent.getSource();
        Integer dept = (Integer)ob.getAttributes().get("DeptId");
        System.out.println("Dept id is : "+dept);
        OperationBinding binding = getBindings().getOperationBinding("setDeptIdInEmployee");
        binding.getParamsMap().put("deptId", dept);
        binding.execute();
        showPopup(popEmp, true);
        //   setDeptIdInEmployee
    }
    /**Method to get Binding Container*/
    public BindingContainer getBindings() {
        return BindingContext.getCurrent().getCurrentBindingsEntry();
    }

I have created a method setDeptIdInEmployee  in AMImpl and added it to client and used in the bean. Here is the code of AMImpl.

    public void setDeptIdInEmployee(Integer deptId){
        ViewObjectImpl employeesView1 = this.getEmployeesView1();
        employeesView1.setNamedWhereClauseParam("DepartmentBind", deptId);
        employeesView1.executeQuery();
    }

On running the application the following page opens

Then Click on the Show Departments button

Now click on the button open Employee and the next popUp will show Employee of Selected Department. here when clicked on Sales row

I am attaching a sample application . You can download it here  :TableOnPopupApp
Like wise you can use this to perform other operations too as now we have the select row.

Bindings in ADF

Binding provides objects to link components, it is the most innovative part of ADF after Task Flows and provides direct interaction with Appication Module. We can work with bindings in ManagedBean and also in Expression Builder. Bindings are basically used for the interaction on the model and the viewController in an ADF Application.

When we drag any DataControl on page then a binding entry is made in the pageDef of the page for that particular field. Suppose we want to Use CreateInsert operation on a button clik in the page, then we have to create the binding of CreateInsert action in the pageDef on that page and then we can use this action in our ManagedBean to perform the desired operation.

Oracle ADF provides following types of bindings:

1. Action Binding
   
   Action Binding is specifically defined for a button component. Provides access to operations defined by the business object. Such as CreateInsert , Delete.
   

   //The code below gets the Bindings entry of the binding container and fetches the current bindings entry
    BindingContainer bindings = BindingContext.getCurrent().getCurrentBindingsEntry();
    //Gets the opertaion bindings for the method "CreateInsert"
    OperationBinding operationBinding = bindings.getOperationBinding("CreateInsert");
    //Then execute executes the method of the binding
    operationBinding.execute(); 
    

   Likewise you can use the above code to call bindings in ManagedBean.
2. Iterator Binding
3. When we drag tables on the page in ADF then ADF creates a IteratorBinding in the pageDef of the page. The iterator binding can be used to get the iterator of the table in the ManagedBean.
4. Given below is the code that can be used to get the IteratorBinding in the ManagedBean.
   

       BindingContext btx = BindingContext.getCurrent();
       DCBindingContainer dcbct = (DCBindingContainer)btx.getCurrentBindingsEntry();
       DCIteratorBinding binding = dcbct.findIteratorBinding("StudentIterator");
       Row currentRow = binding.getCurrentRow();

5. Here in the last line I have get the current Row from th iterator. 

   LikeWise you can use it to perform desired action. 

7. ValueBindings
   Value Bindings are created in the pageDef for all the attributes that are added on the page from the dataControl.

Following the MVC Architecture in ADF, AMImpl method Called in Managed Bean

Hello everyone,

Here am about to explain how we can optimize our application for performance in ADF. ADF follows MVC architecture for application development.So there are times when we need an instance of model impl classes in the bean such as for example: we need AppModuleImpl in our bean class to get or fetch value from a view object. So for that we have to create an AppModuleImpl instance in the bean and then get viewObject from that.

So, if we get the AppModuleImpl object in bean then the purpose of MVC is being violated.I mean then we would be merging the model and viewController separation. And further more new instances of AppModuleImpl and etc, will created in our Managed Bean, this adds to violation of MVC Architecture . So it is better to keep the database logic in the database layer i.e. model and keep the controller logic in in viewController.

So the problem is that if we have to interact with the model layer from the bean, then how shall we do it?

The answer to this question is the use of ADF bindings.

Binding is used to interact with model layer from the viewController layer.

Suppose in a scenario, just for example we have to get the location of the employee by using EmployeeId. This needs interaction with the model layer.

So to do that we have to create a method that will take EmployeeId as input and give back location in return. 

1. Go to the AppModuleImpl and create a method.
   
   **Please do not use "Object" type in return parameter or in inputParameter,if you do this then the method will not be shown in ClientInterface**

       public Integer getLoc(Integer EmpId){
           Integer sal = null;
           Row[] row_2 = this.getEmployee1().getFilteredRows("EmployeeId", EmpId);
           if(row_2.length>0){
               sal = Integer.parseInt(row_2[0].getAttribute("Salary").toString());
           }
           return sal;
       }
   




2. Then go to clientInterface of the AM and add the method to clientInterface.
   
   
   
   
   
   
   
   
3. Then you have to create binding for this method on the page.
   
   
   
   
   
   
   
   
   
4. Now we have to call this binding and put the parameters in it from the bean.
   

       public void fetchSalary(ActionEvent actionEvent) {
           OperationBinding binding = getBindings().getOperationBinding("getLoc");
           // to put parameters value in the method
           binding.getParamsMap().put("EmpId", empId);
           Object execute = binding.execute();
           salary  = (Integer) execute;
       }
   

5. Now when you run the application.
   
   
   
   
   and when Fetch Salary button is clicked
   
   
6. You can download the sample application here : MethodBindingApp.rar.
7. If you have any query regarding this, please write in the comments. 

How to use single input field to search in different columns in oracle ADF Application.

In ADF we can create search in tables using viewcriteria. ViewCriteria can be used to perform any kind of search or criteria on the ViewCriteria. The main idea behind single inputtext search is to put or operator in the viewCriteria or query, and to compare the columns with the approriate datatype. Here i have created common search for departmentId, employeeId, firstname, lastName, PhoneNumber, Salary and JobId column.

Here i have used Employee table of hr schema to demonstrate single point search on the whole table. 

So, for this simply create a simple ADF application and connect it to database using hr schema.

1. For this we need employee view, here we are using readonly viewObject beacause we just have to display the information. Create bind variables as shown in the picture. Here i have created 6 bind variable to perform search on 7 columns of the employee table.
   
   
   
    
2.  Now create a viewCriteria as shown below.
   
   
   

   <ViewCriteria
       Name="EmployeeVOCriteria"
       ViewObjectName="singleboxsearch.model.EmployeeVO"
       Conjunction="AND">
       <Properties>
         <CustomProperties>
           <Property
             Name="displayOperators"
             Value="InAdvancedMode"/>
           <Property
             Name="autoExecute"
             Value="false"/>
           <Property
             Name="allowConjunctionOverride"
             Value="true"/>
           <Property
             Name="showInList"
             Value="true"/>
           <Property
             Name="mode"
             Value="Basic"/>
         </CustomProperties>
       </Properties>
       <ViewCriteriaRow
         Name="EmployeeVOCriteria_row_0"
         UpperColumns="1">
         <ViewCriteriaItem
           Name="EmployeeId"
           ViewAttribute="EmployeeId"
           Operator="="
           Conjunction="AND"
           Value=":EmpIdBind"
           IsBindVarValue="true"
           Required="Optional"/>
         <ViewCriteriaItem
           Name="FirstName"
           ViewAttribute="FirstName"
           Operator="CONTAINS"
           Conjunction="OR"
           Value=":NameBind"
           IsBindVarValue="true"
           Required="Optional"/>
         <ViewCriteriaItem
           Name="LastName"
           ViewAttribute="LastName"
           Operator="CONTAINS"
           Conjunction="OR"
           Value=":NameBind"
           IsBindVarValue="true"
           Required="Optional"/>
         <ViewCriteriaItem
           Name="PhoneNumber"
           ViewAttribute="PhoneNumber"
           Operator="CONTAINS"
           Conjunction="OR"
           Value=":PhoneNumBind"
           IsBindVarValue="true"
           Required="Optional"/>
         <ViewCriteriaItem
           Name="Salary"
           ViewAttribute="Salary"
           Operator="="
           Conjunction="OR"
           Value=":SalaryBind"
           IsBindVarValue="true"
           Required="Optional"/>
         <ViewCriteriaItem
           Name="DepartmentId"
           ViewAttribute="DepartmentId"
           Operator="="
           Conjunction="OR"
           Value=":DeptIdBind"
           IsBindVarValue="true"
           Required="Optional"/>
       </ViewCriteriaRow>
     </ViewCriteria> 

3. Now we need a page to display the search. So i just created a jspx page and drag the table onto it and put 1 inputTextBox and 2 buttons. 1 for search and the other for reset action. Here is the xml code of the jspx page.
   

   <?xml version='1.0' encoding='UTF-8'?>
   <jsp:root xmlns:jsp="http://java.sun.com/JSP/Page" version="2.1" xmlns:f="http://java.sun.com/jsf/core"
             xmlns:af="http://xmlns.oracle.com/adf/faces/rich">
       <jsp:directive.page contentType="text/html;charset=UTF-8"/>
       <f:view>
           <af:document title="untitled1" id="d1">
               <af:form id="f1">
                   <af:panelBox id="pb1" showDisclosure="false">
                       <f:facet name="toolbar"/>
                       <af:panelGroupLayout id="pgl1" layout="horizontal">
                           <af:inputText label="Search" id="it11" labelStyle="color:black;font-weight:bold;"
                                         binding="#{SingleBoxSearch.searchBox_IT_Bind}"/>
                           <af:commandButton text="Search" id="cb1" inlineStyle="font-weight:bold;"
                                             actionListener="#{SingleBoxSearch.searchACTION}"/>
                           <af:commandButton text="Reset" id="cb2" inlineStyle="font-weight:bold;"
                                             actionListener="#{SingleBoxSearch.resetACTION}"/>
                       </af:panelGroupLayout>
                   </af:panelBox>
                   <af:panelCollection id="pc1" styleClass="AFStretchWidth">
                       <f:facet name="menus"/>
                       <f:facet name="toolbar"/>
                       <f:facet name="statusbar"/>
                       <af:table value="#{bindings.EmployeeVO1.collectionModel}" var="row"
                                 rows="#{bindings.EmployeeVO1.rangeSize}"
                                 emptyText="#{bindings.EmployeeVO1.viewable ? 'No data to display.' : 'Access Denied.'}"
                                 fetchSize="#{bindings.EmployeeVO1.rangeSize}" rowBandingInterval="0"
                                 selectedRowKeys="#{bindings.EmployeeVO1.collectionModel.selectedRow}"
                                 selectionListener="#{bindings.EmployeeVO1.collectionModel.makeCurrent}"
                                 rowSelection="single" id="t1" styleClass="AFStretchWidth">
                           <af:column sortProperty="#{bindings.EmployeeVO1.hints.EmployeeId.name}" sortable="false"
                                      headerText="#{bindings.EmployeeVO1.hints.EmployeeId.label}" id="c1">
                               <af:inputText value="#{row.bindings.EmployeeId.inputValue}"
                                             label="#{bindings.EmployeeVO1.hints.EmployeeId.label}"
                                             required="#{bindings.EmployeeVO1.hints.EmployeeId.mandatory}"
                                             columns="#{bindings.EmployeeVO1.hints.EmployeeId.displayWidth}"
                                             maximumLength="#{bindings.EmployeeVO1.hints.EmployeeId.precision}"
                                             shortDesc="#{bindings.EmployeeVO1.hints.EmployeeId.tooltip}" id="it1"
                                             readOnly="true">
                                   <f:validator binding="#{row.bindings.EmployeeId.validator}"/>
                                   <af:convertNumber groupingUsed="false"
                                                     pattern="#{bindings.EmployeeVO1.hints.EmployeeId.format}"/>
                               </af:inputText>
                           </af:column>
                           <af:column sortProperty="#{bindings.EmployeeVO1.hints.FirstName.name}" sortable="false"
                                      headerText="#{bindings.EmployeeVO1.hints.FirstName.label}" id="c2">
                               <af:inputText value="#{row.bindings.FirstName.inputValue}"
                                             label="#{bindings.EmployeeVO1.hints.FirstName.label}"
                                             required="#{bindings.EmployeeVO1.hints.FirstName.mandatory}"
                                             columns="#{bindings.EmployeeVO1.hints.FirstName.displayWidth}"
                                             maximumLength="#{bindings.EmployeeVO1.hints.FirstName.precision}"
                                             shortDesc="#{bindings.EmployeeVO1.hints.FirstName.tooltip}" id="it2"
                                             readOnly="true">
                                   <f:validator binding="#{row.bindings.FirstName.validator}"/>
                               </af:inputText>
                           </af:column>
                           <af:column sortProperty="#{bindings.EmployeeVO1.hints.LastName.name}" sortable="false"
                                      headerText="#{bindings.EmployeeVO1.hints.LastName.label}" id="c3">
                               <af:inputText value="#{row.bindings.LastName.inputValue}"
                                             label="#{bindings.EmployeeVO1.hints.LastName.label}"
                                             required="#{bindings.EmployeeVO1.hints.LastName.mandatory}"
                                             columns="#{bindings.EmployeeVO1.hints.LastName.displayWidth}"
                                             maximumLength="#{bindings.EmployeeVO1.hints.LastName.precision}"
                                             shortDesc="#{bindings.EmployeeVO1.hints.LastName.tooltip}" id="it3"
                                             readOnly="true">
                                   <f:validator binding="#{row.bindings.LastName.validator}"/>
                               </af:inputText>
                           </af:column>
                           <af:column sortProperty="#{bindings.EmployeeVO1.hints.Email.name}" sortable="false"
                                      headerText="#{bindings.EmployeeVO1.hints.Email.label}" id="c4">
                               <af:inputText value="#{row.bindings.Email.inputValue}"
                                             label="#{bindings.EmployeeVO1.hints.Email.label}"
                                             required="#{bindings.EmployeeVO1.hints.Email.mandatory}"
                                             columns="#{bindings.EmployeeVO1.hints.Email.displayWidth}"
                                             maximumLength="#{bindings.EmployeeVO1.hints.Email.precision}"
                                             shortDesc="#{bindings.EmployeeVO1.hints.Email.tooltip}" id="it4"
                                             readOnly="true">
                                   <f:validator binding="#{row.bindings.Email.validator}"/>
                               </af:inputText>
                           </af:column>
                           <af:column sortProperty="#{bindings.EmployeeVO1.hints.PhoneNumber.name}" sortable="false"
                                      headerText="#{bindings.EmployeeVO1.hints.PhoneNumber.label}" id="c5">
                               <af:inputText value="#{row.bindings.PhoneNumber.inputValue}"
                                             label="#{bindings.EmployeeVO1.hints.PhoneNumber.label}"
                                             required="#{bindings.EmployeeVO1.hints.PhoneNumber.mandatory}"
                                             columns="#{bindings.EmployeeVO1.hints.PhoneNumber.displayWidth}"
                                             maximumLength="#{bindings.EmployeeVO1.hints.PhoneNumber.precision}"
                                             shortDesc="#{bindings.EmployeeVO1.hints.PhoneNumber.tooltip}" id="it5"
                                             readOnly="true">
                                   <f:validator binding="#{row.bindings.PhoneNumber.validator}"/>
                               </af:inputText>
                           </af:column>
                           <af:column sortProperty="#{bindings.EmployeeVO1.hints.HireDate.name}" sortable="false"
                                      headerText="#{bindings.EmployeeVO1.hints.HireDate.label}" id="c6">
                               <af:inputDate value="#{row.bindings.HireDate.inputValue}"
                                             label="#{bindings.EmployeeVO1.hints.HireDate.label}"
                                             required="#{bindings.EmployeeVO1.hints.HireDate.mandatory}"
                                             columns="#{bindings.EmployeeVO1.hints.HireDate.displayWidth}"
                                             shortDesc="#{bindings.EmployeeVO1.hints.HireDate.tooltip}" id="id1"
                                             readOnly="true">
                                   <f:validator binding="#{row.bindings.HireDate.validator}"/>
                                   <af:convertDateTime pattern="#{bindings.EmployeeVO1.hints.HireDate.format}"/>
                               </af:inputDate>
                           </af:column>
                           <af:column sortProperty="#{bindings.EmployeeVO1.hints.JobId.name}" sortable="false"
                                      headerText="#{bindings.EmployeeVO1.hints.JobId.label}" id="c7">
                               <af:inputText value="#{row.bindings.JobId.inputValue}"
                                             label="#{bindings.EmployeeVO1.hints.JobId.label}"
                                             required="#{bindings.EmployeeVO1.hints.JobId.mandatory}"
                                             columns="#{bindings.EmployeeVO1.hints.JobId.displayWidth}"
                                             maximumLength="#{bindings.EmployeeVO1.hints.JobId.precision}"
                                             shortDesc="#{bindings.EmployeeVO1.hints.JobId.tooltip}" id="it6"
                                             readOnly="true">
                                   <f:validator binding="#{row.bindings.JobId.validator}"/>
                               </af:inputText>
                           </af:column>
                           <af:column sortProperty="#{bindings.EmployeeVO1.hints.Salary.name}" sortable="false"
                                      headerText="#{bindings.EmployeeVO1.hints.Salary.label}" id="c8">
                               <af:inputText value="#{row.bindings.Salary.inputValue}"
                                             label="#{bindings.EmployeeVO1.hints.Salary.label}"
                                             required="#{bindings.EmployeeVO1.hints.Salary.mandatory}"
                                             columns="#{bindings.EmployeeVO1.hints.Salary.displayWidth}"
                                             maximumLength="#{bindings.EmployeeVO1.hints.Salary.precision}"
                                             shortDesc="#{bindings.EmployeeVO1.hints.Salary.tooltip}" id="it7"
                                             readOnly="true">
                                   <f:validator binding="#{row.bindings.Salary.validator}"/>
                               </af:inputText>
                           </af:column>
                           <af:column sortProperty="#{bindings.EmployeeVO1.hints.CommissionPct.name}" sortable="false"
                                      headerText="#{bindings.EmployeeVO1.hints.CommissionPct.label}" id="c9">
                               <af:inputText value="#{row.bindings.CommissionPct.inputValue}"
                                             label="#{bindings.EmployeeVO1.hints.CommissionPct.label}"
                                             required="#{bindings.EmployeeVO1.hints.CommissionPct.mandatory}"
                                             columns="#{bindings.EmployeeVO1.hints.CommissionPct.displayWidth}"
                                             maximumLength="#{bindings.EmployeeVO1.hints.CommissionPct.precision}"
                                             shortDesc="#{bindings.EmployeeVO1.hints.CommissionPct.tooltip}" id="it8"
                                             readOnly="true">
                                   <f:validator binding="#{row.bindings.CommissionPct.validator}"/>
                               </af:inputText>
                           </af:column>
                           <af:column sortProperty="#{bindings.EmployeeVO1.hints.ManagerId.name}" sortable="false"
                                      headerText="#{bindings.EmployeeVO1.hints.ManagerId.label}" id="c10">
                               <af:inputText value="#{row.bindings.ManagerId.inputValue}"
                                             label="#{bindings.EmployeeVO1.hints.ManagerId.label}"
                                             required="#{bindings.EmployeeVO1.hints.ManagerId.mandatory}"
                                             columns="#{bindings.EmployeeVO1.hints.ManagerId.displayWidth}"
                                             maximumLength="#{bindings.EmployeeVO1.hints.ManagerId.precision}"
                                             shortDesc="#{bindings.EmployeeVO1.hints.ManagerId.tooltip}" id="it9"
                                             readOnly="true">
                                   <f:validator binding="#{row.bindings.ManagerId.validator}"/>
                                   <af:convertNumber groupingUsed="false"
                                                     pattern="#{bindings.EmployeeVO1.hints.ManagerId.format}"/>
                               </af:inputText>
                           </af:column>
                           <af:column sortProperty="#{bindings.EmployeeVO1.hints.DepartmentId.name}" sortable="false"
                                      headerText="#{bindings.EmployeeVO1.hints.DepartmentId.label}" id="c11">
                               <af:inputText value="#{row.bindings.DepartmentId.inputValue}"
                                             label="#{bindings.EmployeeVO1.hints.DepartmentId.label}"
                                             required="#{bindings.EmployeeVO1.hints.DepartmentId.mandatory}"
                                             columns="#{bindings.EmployeeVO1.hints.DepartmentId.displayWidth}"
                                             maximumLength="#{bindings.EmployeeVO1.hints.DepartmentId.precision}"
                                             shortDesc="#{bindings.EmployeeVO1.hints.DepartmentId.tooltip}" id="it10"
                                             readOnly="true">
                                   <f:validator binding="#{row.bindings.DepartmentId.validator}"/>
                                   <af:convertNumber groupingUsed="false"
                                                     pattern="#{bindings.EmployeeVO1.hints.DepartmentId.format}"/>
                               </af:inputText>
                           </af:column>
                       </af:table>
                   </af:panelCollection>
               </af:form>
           </af:document>
       </f:view>
   </jsp:root> 

4. The java code used to search is given below. In this i have used "employeesSearch.setNamedWhereClauseParam("NameBind", searchBox_IT_Bind.getValue());" to set the values to the bind variables.
   

   package singleboxsearch.view;
   
   import java.io.Serializable;
   
   import javax.el.ELContext;
   import javax.el.ExpressionFactory;
   import javax.el.ValueExpression;
   
   import javax.faces.application.Application;
   import javax.faces.context.FacesContext;
   import javax.faces.event.ActionEvent;
   
   import oracle.adf.view.rich.component.rich.input.RichInputText;
   
   import oracle.jbo.server.ViewObjectImpl;
   
   import singleboxsearch.model.SingleBoxSearchAMImpl;
   
   public class SingleBoxSearch implements Serializable {
       private RichInputText searchBox_IT_Bind;
       SingleBoxSearchAMImpl am;
   
       public SingleBoxSearch() {
       }
   
       public void setSearchBox_IT_Bind(RichInputText searchBox_IT_Bind) {
           this.searchBox_IT_Bind = searchBox_IT_Bind;
       }
   
       public RichInputText getSearchBox_IT_Bind() {
           return searchBox_IT_Bind;
       }
   
       public void searchACTION(ActionEvent actionEvent) {
           System.out.println(searchBox_IT_Bind.getValue());
           if(this.searchBox_IT_Bind.getValue() != null){
               Integer val = 0;
               try{
                   val = Integer.parseInt(this.searchBox_IT_Bind.getValue().toString()) ;
               }catch(Exception e){
                   val = -1;
                   System.out.println(e.getMessage());
               }
               ViewObjectImpl employeesSearch = this.getAppModule().getEmployeeVO1();
               employeesSearch.setNamedWhereClauseParam("NameBind", searchBox_IT_Bind.getValue());
               employeesSearch.setNamedWhereClauseParam("PhoneNumBind", searchBox_IT_Bind.getValue());
               employeesSearch.setNamedWhereClauseParam("JobIdBind", searchBox_IT_Bind.getValue());
               if(val != -1){
               employeesSearch.setNamedWhereClauseParam("EmpIdBind", val);
               employeesSearch.setNamedWhereClauseParam("DeptIdBind", val);
               employeesSearch.setNamedWhereClauseParam("SalaryBind", val);
               }
               employeesSearch.executeQuery();
           }
       }
   
       public void resetACTION(ActionEvent actionEvent) {
           this.searchBox_IT_Bind.setValue(null);
           ViewObjectImpl employeesSearch = this.getAppModule().getEmployeeVO1();
           employeesSearch.setNamedWhereClauseParam("NameBind", null);
           employeesSearch.setNamedWhereClauseParam("EmpIdBind", null);
           employeesSearch.setNamedWhereClauseParam("DeptIdBind", null);
           employeesSearch.setNamedWhereClauseParam("PhoneNumBind", null);
           employeesSearch.setNamedWhereClauseParam("JobIdBind", null);
           employeesSearch.setNamedWhereClauseParam("SalaryBind", null);
           employeesSearch.executeQuery();
       }
       public SingleBoxSearchAMImpl getAppModule(){
           if(am == null){
               am = (SingleBoxSearchAMImpl)resolvElDC("SingleBoxSearchAMDataControl");
               return am;
           }else{
               return am;
           }
       }
       public Object resolvElDC(String data) {
           FacesContext fc = FacesContext.getCurrentInstance();
           Application app = fc.getApplication();
           ExpressionFactory elFactory = app.getExpressionFactory();
           ELContext elContext = fc.getELContext();
           ValueExpression valueExp =
               elFactory.createValueExpression(elContext, "#{data." + data + ".dataProvider}", Object.class);
           return valueExp.getValue(elContext);
       } 
   } 

5. Now run the application and search in the page. Here i have search with dept id 50, means search all the employees whose deptId is 50.
   
   
   
6. Here i have search for name.
   
   
   
7. Here i have searched for salary 2600.
   
   
   
8. You can download sample application from here : SingleSearch.jar