Details
Minor Description
A common use case is that a query (or a find) should return exactly one object, and any other result is to be considered an error. camel-sql supports thehttps://issues.apache.org/jira/browse/CAMEL-19327# outputType=SelectOne option which will cause the component to throw an exception if the query does not return a single row. camel-jpa does not have such an option and thus user must manually check for body size.
This PR addresses that. It adds a boolean option singleResult, which, if set to true:
- in case of a query will cause the component to put the single fetched object into the message body, not in a List, or throw an exception otherwise
- in case of a find, if no object is found the component will throw an exception rather than put null into the body
it has no effect on updates, and doesn't alter the consumer.