private static Object getValue(Object bean, String fieldName) throws Exception {
final String getter = RichBeanUtils.getGetterName(fieldName);
try {
return bean.getClass().getMethod(getter).invoke(bean);
} catch (java.lang.NoSuchMethodException ne) {
final String isser = RichBeanUtils.getIsserName(fieldName);
return bean.getClass().getMethod(isser).invoke(bean);
}
}
/**
* Get the ui field out of the object container.
*
* @param fieldName
* @param uiObject
* @return IFieldWidget or null if is not an IFieldWidget instance
* @throws Exception
* @throws NoSuchMethodException
* @throws SecurityException
* @throws InvocationTargetException
* @throws IllegalAccessException
* @throws IllegalArgumentException
*/
public static IFieldWidget getFieldWidget(final String fieldName, final Object uiObject)
throws Exception {
final String methodName = RichBeanUtils.getGetterName(fieldName);
final Method getter = uiObject.getClass().getMethod(methodName);
final Object box = getter.invoke(uiObject);
if (box instanceof IFieldWidget) {
return (IFieldWidget) box;
}
return null;
}
/**
* Set the value of a single field specified by field name in the bean from the ui.
*
* @param uiObject
* @param bean
* @param fieldName
* @throws Exception
*/
public static void uiToBean(final Object uiObject, final Object bean, final String fieldName)
throws Exception {
if (fieldName == null)
throw new Exception("Null fieldName passed to uiToBean. Please set the field name.");
final IFieldWidget box = BeanUIWithoutOSGi.getFieldWidget(fieldName, uiObject);
if (box == null) return; // Not all properties have to be in the UI.
if (!box.isActivated()) return;
final Object ob = box.getValue();
if (ob != null && !isNaN(ob) && !isInfinity(ob)) {
RichBeanUtils.setBeanValue(bean, fieldName, ob);
} else {
// Required to fix fields inside a list editor being edited to no value.
if (ob != null) {
final Method setter =
bean.getClass().getMethod(RichBeanUtils.getSetterName(fieldName), ob.getClass());
setter.invoke(bean, ob.getClass().cast(null));
}
}
}
