Hi Everyone ,
I am getting an error when tried to persist my class using the JPA.
I am about to persist my child model . here is the snippet that
generates the error,
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Extension(vendorName="datanucleus", key="gae.encoded-pk",
value="true")
private String personId;
I have tried key as well,
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Key personaId;
I am getting the following error when tried to persist the object of
the above class.
Invalid Key PB: no elements.
Caused by:
java.lang.IllegalArgumentException: Invalid Key PB: no elements.
at
com.google.appengine.api.datastore.KeyTranslator.createFromPb(KeyTranslator.java:
26)
at
com.google.appengine.api.datastore.KeyFactory.stringToKey(KeyFactory.java:
197)
Can anyone kindly help me to get out of this problem ?
Thanks,
Pradeep.
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