Hello,
i'm tring Java on GAE and using JDO to map my beans. I attended at
http://code.google.com/appengine/docs/java/datastore/relationships.html#Owned_One_to_Many_Relationships
to set beans relationships, but, always occurs follow error
Error in meta-data for com.bean.Town.id: Cannot have a java.lang.Long
primary key and be a child object (owning field is
com.bean.Province.town).
My beans are
**** Province.java ****
@PersistenceCapable(identityType = IdentityType.APPLICATION)
public class Province {
@PrimaryKey
@Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
private Long id;
@Persistent
private String name;
@Persistent(mappedBy = "province")
private Town town;
**** Town.java ****
@PersistenceCapable(identityType = IdentityType.APPLICATION)
public class Town {
@PrimaryKey
@Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
private Long id;
@Persistent
private Province province;
Example in link uses class like mine.
How i can solve?
how i can map relationships?
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