@Override
@Transactional
public void expirePins() {
Date now = new Date();
PersistenceManager pm = _pmf.getPersistenceManager();
Query query = pm.newQuery(Pin.class, "_expirationTime < :now && _state != 'UNPINNING'");
query.addExtension("datanucleus.rdbms.query.resultSetType", "scroll-insensitive");
query.addExtension("datanucleus.query.resultCacheType", "none");
query.getFetchPlan().setFetchSize(FetchPlan.FETCH_SIZE_OPTIMAL);
try {
for (Pin pin : (Collection<Pin>) query.execute(now)) {
pin.setState(Pin.State.UNPINNING);
}
} finally {
query.closeAll();
}
}
@Override
@Transactional
public boolean all(Pin.State state, Predicate<Pin> f) {
PersistenceManager pm = _pmf.getPersistenceManager();
Query query = pm.newQuery(Pin.class, "_state == :state");
query.addExtension("datanucleus.rdbms.query.resultSetType", "scroll-insensitive");
query.addExtension("datanucleus.query.resultCacheType", "none");
query.getFetchPlan().setFetchSize(FetchPlan.FETCH_SIZE_OPTIMAL);
try {
for (Pin pin : (Collection<Pin>) query.execute(state)) {
if (!f.apply(pm.detachCopy(pin))) {
return false;
}
}
} finally {
query.closeAll();
}
return true;
}
