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From "howard kelsey (JIRA)" <j...@apache.org>
Subject [jira] [Created] (OPENJPA-2343) Version field of related entity returns null when explicitly projected in SELECT clause
Date Fri, 01 Mar 2013 14:57:13 GMT
howard kelsey created OPENJPA-2343:
--------------------------------------

             Summary: Version field of related entity returns null when explicitly projected
in SELECT clause
                 Key: OPENJPA-2343
                 URL: https://issues.apache.org/jira/browse/OPENJPA-2343
             Project: OpenJPA
          Issue Type: Bug
          Components: query
    Affects Versions: 2.2.1
            Reporter: howard kelsey


With these entities: 

@Entity
public class Foo {
    private int id;
    private int version;
    @Id
	public int getId() {
		return id;
	}
	public void setId(int id) {
		this.id = id;
	}

	public void setVersion(int version) {
		this.version = version;
	}	
	@Version
	public int getVersion() {
		return this.version;
	}
}

@Entity
public class Bar{
	private int id;
	private Foo foo;
    @Id
	public int getId() {
		return id;
	}
	public void setId(int id) {
		this.id = id;
	}
    public void setFoo(Foo foo) {
        this.foo = foo;
    }
    @ManyToOne
    public Foo getFoo() {
        return foo;
    }
}
Insert a record for each associating foo with bar.

Foo foo = new Foo();
em.getTransaction().begin(); 
em.persist(foo); 
Bar bar = new Bar();
bar.setFoo(foo);
em.persist(bar);
em.getTransaction().commit(); 
em.close(); 

queries 

select bar.id as id, foo as foo from Bar bar join bar.foo foo
The version field is available via foo.getVersion()

select bar.id as id, foo.version as version from Bar bar join bar.foo foo
version is always null.


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