return this;
}
checkArgument(avatar.getSone().equals(sone), "avatar must belong to Sone");
- this.avatar = avatar.getId();
+ this.avatar = avatar.getInternalId();
return this;
}
*/
public Field addField(String fieldName) throws IllegalArgumentException {
checkNotNull(fieldName, "fieldName must not be null");
- checkArgument(fieldName.length() > 0, "fieldName must not be empty");
+ if (fieldName.length() == 0) {
+ throw new EmptyFieldName();
+ }
if (getFieldByName(fieldName) != null) {
throw new DuplicateField();
}
}
/**
+ * Exception that signals the addition of a field with an empty name.
+ *
+ * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
+ */
+ public static class EmptyFieldName extends IllegalArgumentException { }
+
+ /**
* Exception that signals the addition of a field that already exists.
*
* @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>