How to define unidirectional OneToMany relationship in JPA

I have a following problem with entity mapping in JPA. I have two entities, first one is Lookup and the second is Text which represents translations for entities. Now I need to bound Lookup to the Text but I don't want Text to have reference to Lookup. To make this more complicated, Text does not use its primary key in this relationship but a metacode defined in a TXTHEAD_CODE column.

Lookup.java

@Entity
@Table(name = "DATREG")
public class Lookup implements PersistableEntity {

    @Id
    @Column(name = "DATREG_META_CODE")
    private String metaCode;

    @OneToMany
    @JoinTable(name="TXT", 
			joinColumns=@JoinColumn(name="DATREG_META_CODE", referencedColumnName="TXTHEAD_CODE"),
			inverseJoinColumns=@JoinColumn(name="DATREG_META_CODE"))
    private List<Text> text;

Text.java

@Entity
@Table(name = "TXT")
public class Text {

    @Id
    @Column(name = "TXT_ID")
    private Long id;

    @Column(name = "TXTHEAD_CODE")
    private String code;

So I have tried this (and few other variations) but with no result. I also can't create join table in the DB and I don't want bound Lookup to my Text class. So can anyone please tell me if there is some other way?

My bible for JPA work is the Java Persistence wikibook. It has a section on unidirectional OneToMany which explains how to do this with a @JoinColumn annotation. In your case, i think you would want:

@OneToMany
@JoinColumn(name="TXTHEAD_CODE")
private Set<Text> text;

I've used a Set rather than a List, because the data itself is not ordered.

The above is using a defaulted referencedColumnName, unlike the example in the wikibook. If that doesn't work, try an explicit one:

@OneToMany
@JoinColumn(name="TXTHEAD_CODE", referencedColumnName="DATREG_META_CODE")
private Set<Text> text;