I cant wrap my head around this but i'm having an issue with doing a
basic query.
I have a user class that contains an embeddable class ContactInfo.
ContactInfo has email, phone, and address String fields.
@PersistenceCapable(identityType=IdentityType.APPLICATION)
public class MyUser {
@Persistent
private ContactInfo contactInfo;
@PersistenceCapable
@EmbeddedOnly
public class ContactInfo {
When i wrote a simple authenticate query...
Query query = pm.newQuery(MyUser.class);
query.setFilter("email == emailParam");
query.setFilter("password == passwordParam");
query.declareParameters("String emailParam,String
passwordParam");
try {
List<MyUser> results = (List<MyUser>) query.execute
(email,password);
I can successfully get back results with no errors.
I have another class called Account that i want to link a user to.
@PersistenceCapable(identityType=IdentityType.APPLICATION)
public class Account {
@Persistent
private Key accountManager;
In adding an account i need to first get the user from a form via a
query
Query query = pm.newQuery(MyUser.class);
query.setFilter("email == emailParam");
query.declareParameters("String emailParam");
try {
List<MyUser> results = (List<MyUser>)
query.execute(email);
Notice this looks exactly the same as the other query just without the
password. In this call i get this error.
org.datanucleus.store.appengine.query.DatastoreQuery
$UnsupportedDatastoreFeatureException: Problem with query <SELECT FROM
net.project.model.MyUser WHERE email == emailParam PARAMETERS String
emailParam>: Unexpected expression type while parsing query:
org.datanucleus.query.expression.VariableExpression
If i change the filter to
query.setFilter("name == emailParam");
this works fine.
I suspect that since name is an object in MyUser while email is an
object in ContactInfo that is embedded in MyUser, this is failing. But
then how come the Authentication query worked?
Any help would be appreciated...
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