JPA Method
in javax.persistence.EntityManager

TypedQuery<T> createQuery(
  String qlString, 
  Class<T> resultClass
)

Create an instance of TypedQuery for executing a Java Persistence query language statement. The select list of the query must contain only a single item, which must be assignable to the type specified by the resultClass argument.
Parameters:
qlString - a Java Persistence query string
resultClass - the type of the query result
Return:
the new query instance
Throws:
IllegalArgumentException - if the query string is found to be invalid or if the query result is found to not be assignable to the specified type
Since:
JPA 2.0