Question

I have this line in my jsf page

<h:dataTable value="#{customer.getCustomerList()}"

and in my bean I have

public List<Customer> getCustomerList(){
        return customerBo.findAllCustomer();
    }

I am using JSF 2.0 with Eclipse Helios with servlet 2.5 and when I validate I am getting

Expression must be a value expression but is a method expression

How can I resolve this issue?

Answer 1

View:

<h:dataTable value="#{customer.customerList}"

The value attribute of your h:dataTable expects a value expression, not a method expression. You have to create a property called customerList in your #{customer} managed bean.

@ManagedBean(name="customer")
public class Customer implements Serializable {
    private List<Customer> custormerList= new ArrayList<Customer>();

    public void setCustomerList(List<Customer> cust){
       this.customerList = cust;
    }
    public List<Customer> getCustomerList(){
        return customerBo.findAllCustomer();
    }
}

Refer to the h:dataTable tag documentation