Class ThawTestUtils

java.lang.Object

ubic.gemma.core.util.test.ThawTestUtils

public final class ThawTestUtils
extends Object

Helpers for tests that need to assert lazy-association initialization state before and after a service's thaw(...) call.

The default test transactional session keeps the entity managed with its bag often pre-hydrated from cascade-saves earlier in the same test method. That makes "is bag NOT initialized" assertions fail before the thaw() even runs. BaseDatabaseTest5 disables L2 cache, so the staleness lives entirely in the first-level cache.

Opening a fresh Session sidesteps that first-level cache and gives a clean view of the entity, with all lazy associations uninitialized. The session is closed before returning, so the result is detached — fine for downstream service.thaw(...) calls that re-attach via ensureInSession() inside their own read-only transaction, and fine for Hibernate.isInitialized(Object) which is safe on detached proxies.

Author:

Gemma

Method Summary

Modifier and Type	Method	Description
static <T> T	loadDetachedInFreshSession(SessionFactory sessionFactory, Class<T> type, Long id)	Load an entity in a fresh Session, then close that session, returning a detached instance whose lazy associations are unrealised.
static <T> T	queryDetachedInFreshSession(SessionFactory sessionFactory, Function<Session,T> query)	Run a query inside a fresh Session and return its result detached.

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

loadDetachedInFreshSession

public static <T> T loadDetachedInFreshSession(SessionFactory sessionFactory,
 Class<T> type,
 Long id)

Load an entity in a fresh Session, then close that session, returning a detached instance whose lazy associations are unrealised.

Type Parameters:

T - entity type

Parameters:

sessionFactory - the test session factory

type - entity class

id - primary key

Returns:

the detached instance with all lazy associations uninitialized

queryDetachedInFreshSession

public static <T> T queryDetachedInFreshSession(SessionFactory sessionFactory,
 Function<Session,T> query)

Run a query inside a fresh Session and return its result detached. The query function executes against a brand-new session (independent of the thread-bound transactional session) so any entities it loads come back with their lazy associations uninitialized. The session is closed in a try-with-resources after the function returns.

Type Parameters:

T - result type

Parameters:

sessionFactory - the test session factory

query - function that issues a query against the fresh session

Returns:

the value produced by query, with proxies detached