Hi, I've tried to use hibernate's criteria query API to execute a query that defines a projection using a component property.
I have
List list = session.createCriteria(Person.class)
.add( Restrictions.like("name", "%a%") )
.list();

where name is an attribute in Person class,This works fine..
But if i use a component , like,

List list1 = session.createCriteria(Employee.class)
.add( Restrictions.like("contactDetails", "%a%") )
.list();

The property used for projection is "contactDetails" of (component) is of type 'EmployeeContactDetails'.
Unfortunately, that does not work - instead, the following exception is thrown:

org.hibernate.QueryException: property does not map to a single column: contactDetails

(Note: Class Employee has a property "contactDetails" of type ''EmployeeContactDetails''. The property 'contactDetails' is mapped as component )

Any Help
Rachel

if "contactDetails" is a component, what sense does following make?

i am assuming contactDetails is a component which will have one or more properties. So, one should be adding a criteria on one of those properties.
That can be done by

for property "property1" in contactDetails component.

The exception thrown looks perfectly valid