When converting the result of a native query to an entity, Hibernate OGM does not check that all the fields are present, this lead to an Entity that does not contain all the values.
Here a testcase to add in the class `MongoDBSessionCLIQueryTest`:
{code}
@Test
public void testPartialCreationOfEntity() throws Exception {
try ( OgmSession session = openSession() ) {
Transaction transaction = session.beginTransaction();
String nativeQuery = "db." + OscarWildePoem.TABLE_NAME + ".find({ 'name' : '" + portia.getName() + "' }, {'name': 1, 'rating':1})";
Query query = session.createNativeQuery( nativeQuery ).addEntity( OscarWildePoem.class );
OscarWildePoem result = (OscarWildePoem) query.uniqueResult();
assertThat( result.getAuthor() ).isEqualTo( portia.getAuthor() );
assertThat( result.getCopiesSold() ).isEqualTo( portia.getCopiesSold() );
transaction.commit();
}
}
{code}
This is a problem because the value get cashed gets cached and can result in unexpected results when running subsequent queries.
I guess we should check what Hibernate ORM does, I suppose an exception should be thrown in this scenario.
See this link to stack overflow: https://stackoverflow.com/questions/48294248/hibernate-ogm-with-mongodb-result-of-2nd-query-on-same-table-dependent-on-result
We should check if the same behavior happens for the other dialects and for HQL queries. |
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