/**
* Docs
*
* @param key
* @param defaultValue value to return if key is not present in main or delta-map
* @return value - if null, defaultValue
*/
public Object eval(Serializable key, Object defaultValue) {
Object retVal = get(key);
if (retVal == null) {
ValueExpression ve = component.getValueExpression(key.toString());
if (ve != null) {
retVal = ve.getValue(component.getFacesContext().getELContext());
}
}
return ((retVal != null) ? retVal : defaultValue);
}
