Question

Is there a way to get the field name with the given getter method.

i get all the getter(s) (getYYY) by using reflection API. now i want to know that ‘yyy’ value. so that i can access that getter method by using expression like #{bean.yyy}.

Example are as given below.

getId — id

getID — ID ( i thought it could be ‘iD’, but it should be ‘ID’)

getNPI — NPI

getNPi — NPi

getNpi — npi

getNpI — npI

Please point me to the java bean convention resources if any.

Answer 1

You can download the JavaBeans spec from the Oracle website.

You can introspect beans using the java.beans package:

public class FooBean implements Serializable {
  private String ID;
  public String getID() { return ID; }
  public void setID(String iD) { ID = iD; }

  public static void main(String[] args) throws Exception {
    for (PropertyDescriptor property : Introspector.getBeanInfo(FooBean.class)
        .getPropertyDescriptors()) {
      System.out.println(property.getName()
          + (property.getWriteMethod() == null ? " (readonly)" : ""));
    }
  }
}

If you decide you really want to, you can also test your property binding expressions using a an EL implementation.