David Jordan - Java data objects
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- Book:Java data objects
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- Publisher:OReilly Media, Inc.
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- Year:2003
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To my wife Tina,whose emotional and financial supportmade this book possible;and to Jennifer and Jeremy, who now think that their daddy has become addicted to his computer.
David Jordan
To Kathy, Chris, Ali, and Juliana.
Craig Russell
| [] |
| [] |
| [] BigDecimal BigInteger Boolean boolean Boolean boolean Byte byte Byte byte |
| [] char Character class metadata attributes close() Collection collection metadata attributes connection-factory property |
| [] Date Double double Double double |
| [] ejb-jar element extension metadata attributes |
| [] field metadata attributes Float float Float float |
| [] getIgnoreCache() getMultithreaded() getNontransactionalRead() getNontransactionalWrite() getObjectId() getOptimistic() getPersistenceManager() getPersistenceManagerFactory() getRestoreValues() getRetainValues() getTransactionalObjectId() |
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| [] int Integer Iterator |
| [] |
| [] |
| [] Locale Long long Long long |
| [] Map map metadata attributes metadata element |
| [] name attribute name attribute Number |
| [] |
| [] package metadata attribute |
| [] query operator |
| [] |
| [] setMultithreaded() setNontransactionalRead() setNontransactionalWrite() setOptimistic() setRestoreValues() setRetainValues() Short short Short short size() SQL functions String |
| [] |
| [] this toString() |
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specifies the values returned by the JDOHelper lifecycle state interrogation methodsfor all the JDO lifecycle states.
State of instance | isPersistent() | isTransactional() | isDirty() | isNew() | isDeleted() |
|---|---|---|---|---|---|
Transient | false | false | false | false | false |
Transient-clean | false | true | false | false | false |
Transient-dirty | false | true | true | false | false |
Hollow | true | false | false | false | false |
Persistent-nontransactional | true | false | false | false | false |
Persistent-new | true | true | true | true | false |
Persistent-clean | true | true | false | false | false |
Persistent-dirty | true | true | true | false | false |
Persistent-deleted | true | true | true | false | true |
Persistent-new-deleted | true | true | true | true | true |
contain the state transitions for everylifecycle state.
Current state | |||||
|---|---|---|---|---|---|
Method | Transient | P-new | P-clean | P-dirty | Hollow |
makePersistent | P-new | unchanged | unchanged | unchanged | unchanged |
deletePersistent | error | P-new-del | P-del | P-del | P-del |
makeTransactional | T-clean | unchanged | unchanged | unchanged | P-clean |
makeNontransactional | error | error | P-nontrans | error | unchanged |
makeTransient | unchanged | error | Transient | error | Transient |
commit withRetainValues = false | unchanged | Hollow | Hollow | Hollow | unchanged |
commit withRetainValues = true | unchanged | P-nontrans | P-nontrans | P-nontrans | unchanged |
rollback with RestoreValues = false | unchanged | Transient | Hollow | Hollow | unchanged |
rollback with RestoreValues = true | unchanged | Transient | P-nontrans | P-nontrans | unchanged |
refresh with active datastore transaction | unchanged | unchanged | unchanged | P-clean | unchanged |
refresh with active optimistic transaction | unchanged | unchanged | unchanged | P-nontrans | unchanged |
evict | n/a | unchanged | Hollow | unchanged | unchanged |
read field outsideof a transaction | unchanged | impossible | impossible | impossible | P-nontrans |
read field with active optimistic transaction | unchanged | unchanged | unchanged | unchanged | P-nontrans |
read field with active datastore transaction | unchanged | unchanged | unchanged | unchanged | P-clean |
write field or makeDirty outside of a transaction | unchanged | impossible | impossible | impossible | P-nontrans |
write field or makeDirty with active transaction | unchanged | unchanged | P-dirty | unchanged | P-dirty |
retrieve outside of a transaction or with active optimistictransaction | unchanged | unchanged | unchanged | unchanged | P-nontrans |
retrieve with active datastore transaction | unchanged | unchanged | unchanged | unchanged | P-clean |
error: a JDOUserException is thrown; the statedoes not change
Current state | |
|---|---|
T-clean |
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