public void validate(Mapping mapping) throws MappingException {
super.validate(mapping);
if (!getIndex().isValid(mapping)) {
throw new MappingException(
"collection index mapping has wrong number of columns: "
+ getRole()
+ " type: "
+ getIndex().getType().getName());
}
if (indexNodeName != null && !indexNodeName.startsWith("@")) {
throw new MappingException("index node must be an attribute: " + indexNodeName);
}
}
