Using and Understanding Java Data Objects

factory.properties file, 276, 281, 285

Failed object, getting, 251

FCO extents, 10

FCOs (first class objects), 9–10, 13, 17

Fetch group, default, 91, 137–138, 235–236

Fetch from memory, vs. datastore read, 164

Field access (.) operator, 51

field tag (JDO metadata), 173–178

field tag attributes (JDO metadata), 174–177

default-fetch-group attribute, 176

embedded attribute, 176–177

name attribute, 174

null-value attribute, 175–176

persistence-modifier attribute, 174–175

primary-key attribute, 174

field tag example, 177–178

Field types

in application data classes, 144

that can be persistent, 145–147

that can be transactional, 145

that can be unmanaged, 144

Fields

of application data class, 9

cached persistent, 89

managed and unmanaged, 144–147

that implement serializable, 147

Filter expressions (query), 51

Filter string (query), 49

Final fields, 144

finally block, 207, 223, 345, 349

find all command, 286

find command, 287

find in results command, 287

flipReservations method (ReservationService), 346–349

Flushing bean state, 215–216

Flushing the cache before sending a query, 64

Foo class used for examples, 50, 59

Foo object states, 59

FOStoreTestDB files, 325

FOStoreTestDB.btd, 282

FOStoreTestDB.btx, 282

Friendly classes

enhancement and, 160–161

persistence-aware, 161

Frozen persistence manager factory, 192