JPA Error joining table and view - jpa

Question

I need to join a table and a view in a JPA query. The query won't compile because the view columns can't be identified.
Any suggestions are greatly appreciated.
Updated with parent entity and consistent naming
The query is:
select count(m.id)
from MultiSpeedMotor m,
MultiSpeedQuery q1
where m.id = q1.motorId
and q1.power = 10
The errors are:
The state field path 'q1.motorId' cannot be resolved to a valid type.
The state field path 'q1.power' cannot be resolved to a valid type.
I am working with a legacy database that has a denormalized table similar to this
Long motorId
Long id
Double hi_power
Double lo_power
I have used a view with a union query to normalize this table into
Long motorId
Long id
Long hi
Double power
To model the view of union query in JPA, I have used an #IdClass
public class MultiSpeedQueryId implements Serializable {
private static final long serialVersionUID = -7996931190943239257L;
private Long motorId;
private Long id;
private Long hi;
...
}
#Entity
#Table(name = "multi_speed_query")
#IdClass(MultiSpeedQueryId.class)
public class MultiSpeedQuery implements IMultiSpeedQuery {
#Id
#Column(name = "motor_id")
private Long motorId;
#Id
private Long id;
#Id
private Long hi;
private Double power;
...
}
The parent Entity is mapped as:
#Entity
#Table(name = "multi_speed_motor")
public class MultiSpeedMotor implements Serializable, IMultiSpeedMotor {
private static final long serialVersionUID = 3019928176257499187L;
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
...
}

Answer 1

The query is correct as written.
You CAN join Entities with no pre-defined relationship by using the syntax.
where a.id = b.joinField
The issue was much simpler. I missed part of the JPA error log that was telling the real problem.
The abstract schema type 'MultiSpeedQuery' is unknown.
Once I added the Entity to the persistence.xml, the query, as originally written, worked perfectly.