public function numChanges(array $options = array())
{
return DataCenterDB::numChanges(array_merge_recursive($options, DataCenterDB::buildCondition('meta', 'change', 'component_category', $this->category), DataCenterDB::buildCondition('meta', 'change', 'component_type', $this->type), DataCenterDB::buildCondition('meta', 'change', 'component_id', $this->getId())));
}
