Created by af:table program does not properly

I have this JSF page:

<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE html>
<f:view xmlns:f="http://java.sun.com/jsf/core" 
        xmlns:af="http://xmlns.oracle.com/adf/faces/rich">
    <af:document title="myFirstPage.jsf" id="d1">
    <af:form id="f1">
          <af:table binding="#{createAdfComponents.table}"/>
     </af:form>
    </af:document>
</f:view>

Here's the bean "createAdfComponents":

@ManagedBean(name = "createAdfComponents")
@SessionScoped
public class CreateAdfComponents {
    public String[] columns = new String[]{"customerID", "firstName", "lastName", "address", "dob"};
   

    private RichTable richTable = null;
    public RichTable getTable() {
        return richTable==null ? richTable=createTable() : richTable;
    }

    private RichTable createTable() {
        RichTable table = new RichTable();
        List<Customer> data = getCustomerList();        
        table.setValue(data);
        table.setVar("c");
        table.setRowBandingInterval(0);
        table.setId("t1");
        int i =1;
        for (String column : columns) {
            RichColumn richColumn = new RichColumn();
            richColumn.setSortable(false);
            richColumn.setHeaderText(column);
            richColumn.setId("c"+ i);
       
            RichOutputText columnValue = new RichOutputText();
            columnValue.setValueExpression("value", createValueExpression("#{c."+column+"}", getClassType(column)));
            columnValue.setId("ot" + i);
            richColumn.getChildren().add(columnValue);
           
            table.getChildren().add(richColumn);
            i++;
        }
        return table;        
    }
    private ValueExpression createValueExpression(String valueExpression, Class<?> valueType) {
        FacesContext facesContext = FacesContext.getCurrentInstance();
        return facesContext.getApplication().getExpressionFactory().createValueExpression(
                        facesContext.getELContext(), valueExpression, valueType);
    }

}

And, for completeness, here's the Customer.java class:

public class Customer {
    private long customerID;
    public String firstName;
    public String lastName;
    public String address;
    public Date dob;
    public long getCustomerID() {
        return customerID;
    }
    public void setCustomerID(long customerID) {
        this.customerID = customerID;
    }
    public String getFirstName() {
        return firstName;
    }
    public void setFirstName(String firstName) {
        this.firstName = firstName;
    }
    public String getLastName() {
        return lastName;
    }
    public void setLastName(String lastName) {
        this.lastName = lastName;
    }
    public String getAddress() {
        return address;
    }
    public void setAddress(String address) {
        this.address = address;
    }
    public Date getDob() {
        return dob;
    }
    public void setDob(Date dob) {
        this.dob = dob;
    }
}

Now, when I run the above on IntegratedWebLogicServer JSF page in JDeveloper 12.2.1...  The columns in the table, but instead to display all the data, the page keeps refreshing repeatedly.

And in doing so... I see the following exception in JDeveloper console output:

javax.el.PropertyNotWritableException: //D:/JDeveloper/system12.2.1.0.42.151011.0031/o.j2ee/drs/Application1/ViewControllerWebApp.war/index3.jsf @8,59 binding="#{createAdfComponents.table}": The class 'CreateAdfComponents' does not have a writable property 'table'.
  at com.sun.faces.facelets.el.TagValueExpression.setValue(TagValueExpression.java:136)
  at javax.faces.component.UIComponent.processEvent(UIComponent.java:2419)
  at org.apache.myfaces.trinidad.component.UIXCollection.processEvent(UIXCollection.java:918)

This exception keeps showing up over and over again... Presumable for every time the page refreshes, it does so constantly with little or no break.

Now, when he has none of the elements of input text and only items of output text, so why would he try a set operation?  Not must not only be fulfilling get operations?

PS I'm new JSF, and ADF.

Many thanks to all.

The error message tells you that your bean class holding the table needs a Set accessor method for the table. The Set accessor is called by the framework when the page was created.

Add a setTable (RichTable t) viod your beans and it should display the table.

As you initialize it the table the first time that call you the Get accessor, you need not store the table through the Set accessor.

Timo

Tags: Java

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