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1
10
11 package com.triactive.jdo.state;
12
13 import com.triactive.jdo.TransactionNotActiveException;
14 import javax.jdo.JDOFatalInternalException;
15 import javax.jdo.Transaction;
16
17
18 class Hollow extends LifeCycleState
19 {
20 protected Hollow()
21 {
22 isPersistent = true;
23 isTransactional = false;
24 isDirty = false;
25 isNew = false;
26 isDeleted = false;
27
28 stateType = HOLLOW;
29 }
30
31 public LifeCycleState transitionDeletePersistent(StateManagerImpl sm, Transaction tx)
32 {
33 if (!tx.isActive())
34 throw new TransactionNotActiveException();
35
36 sm.preDelete();
37 sm.enlistInTransaction();
38 return changeState(sm, P_DELETED);
39 }
40
41 public LifeCycleState transitionMakeTransactional(StateManagerImpl sm, Transaction tx)
42 {
43 if (!tx.isActive())
44 throw new TransactionNotActiveException();
45
46 sm.loadDFGFields();
47 sm.enlistInTransaction();
48 return changeState(sm, P_CLEAN);
49 }
50
51 public LifeCycleState transitionMakeTransient(StateManagerImpl sm)
52 {
53 sm.disconnect();
54 return changeState(sm, TRANSIENT);
55 }
56
57 public LifeCycleState transitionCommit(StateManagerImpl sm, Transaction tx)
58 {
59 throw new IllegalStateTransitionException(this, "commit", sm);
60 }
61
62 public LifeCycleState transitionRollback(StateManagerImpl sm, Transaction tx)
63 {
64 throw new IllegalStateTransitionException(this, "rollback", sm);
65 }
66
67 public LifeCycleState transitionReadField(StateManagerImpl sm, Transaction tx)
68 {
69 if (tx.isActive())
70 {
71 sm.enlistInTransaction();
72 return changeState(sm, P_CLEAN);
73 }
74 else
75 return changeState(sm, P_NONTRANS);
76 }
77
78 public LifeCycleState transitionWriteField(StateManagerImpl sm, Transaction tx)
79 {
80 if (tx.isActive())
81 {
82 if (tx.getRestoreValues())
83 sm.saveFields();
84
85 sm.enlistInTransaction();
86 return changeState(sm, P_DIRTY);
87 }
88 else
89 return changeState(sm, P_NONTRANS);
90 }
91
92 public LifeCycleState transitionRetrieve(StateManagerImpl sm, Transaction tx, boolean DFGOnly)
93 {
94 if (DFGOnly)
95 sm.loadDFGFields();
96 else
97 sm.loadUnloadedFields();
98
99 return transitionReadField(sm, tx);
100 }
101
102 public String  toString()
103 {
104 return "HOLLOW";
105 }
106 }
107 |
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