createNamedQuery(name, resultClass) - JPA EntityManager's method

Method
javax.persistence.EntityManager
TypedQuery<T> createNamedQuery(
  String name,
  Class<T> resultClass
)

Create an instance of TypedQuery for executing a Java Persistence query language named query. 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:
name - the name of a query defined in metadata
resultClass - the type of the query result
Returns:
the new query instance
Throws:
IllegalArgumentException - if a query has not been defined with the given name or 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