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1
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12 package com.versant.core.jdo;
13
14 import com.versant.core.common.OID;
15 import com.versant.core.common.NewObjectOID;
16 import com.versant.core.metadata.ModelMetaData;
17 import com.versant.core.metadata.MDStatics;
18 import com.versant.core.metadata.ClassMetaData;
19
20 import java.io.Externalizable  ;
21 import java.io.IOException ;
22 import java.io.ObjectInput ;
23 import java.io.ObjectOutput ;
24
25 import com.versant.core.common.BindingSupportImpl;
26
27
32
33
34
35 public final class VersantOid implements Externalizable {
36
37 private transient PMCacheEntry ce;
38 public transient OID actualOID;
39
40 public int classId;
41 public long pk;
42
43 public VersantOid() {
44 }
45
46 public VersantOid(OID actualOID, ModelMetaData jmd, boolean resolved) {
47 this.actualOID = actualOID;
48 if (resolved) {
49 classId = actualOID.getClassMetaData().classId;
50 } else {
51 classId = actualOID.getAvailableClassId();
52 }
53 pk = actualOID.getLongPrimaryKey();
54 }
55
56 public VersantOid(PCStateMan sm, ModelMetaData jmd, boolean resolved) {
57 actualOID = sm.oid;
58 if (sm.oid.isNew() && ((NewObjectOID)sm.oid).realOID != null) {
59 actualOID = ((NewObjectOID)sm.oid).realOID;
61 } else {
62 this.ce = sm.cacheEntry;
63 }
64
65 classId = actualOID.getAvailableClassId();
66 pk = actualOID.getLongPrimaryKey();
67 }
68
69 public VersantOid(String s) {
70 try {
71 char c = s.charAt(0);
72 int classId = c - '0';
73 checkClassIDDigit(classId, c, s);
74 int i = 1;
75 for (; ;) {
76 c = s.charAt(i++);
77 if (c == MDStatics.OID_CHAR_SEPERATOR) break;
78 int digit = c - '0';
79 checkClassIDDigit(digit, c, s);
80 classId = classId * 10 + digit;
81 }
82 this.classId = classId;
83 c = s.charAt(i++);
84 int n = s.length();
85 long pk = c - '0';
86 checkPkDigit(pk, c, s);
87 for (; i < n;) {
88 c = s.charAt(i++);
89 int digit = c - '0';
90 checkPkDigit(digit, c, s);
91 pk = pk * 10 + digit;
92 }
93 this.pk = pk;
94 } catch (Exception e) {
95 if( BindingSupportImpl.getInstance().isOwnInvalidObjectIdException(e) )
96 {
97 throw (RuntimeException )e;
98 }
99 else
100 {
101 throw BindingSupportImpl.getInstance().invalidObjectId("Invalid OID String: '" + s + "': " + e,
102 e);
103 }
104 }
105 }
106
107 private void checkClassIDDigit(int digit, char c, String s) {
108 if (digit < 0 || digit > 9) {
109 throw BindingSupportImpl.getInstance().invalidObjectId("Invalid digit '" + c +
110 "' in classID for OID String: '" + s + "'", null);
111 }
112 }
113
114 private void checkPkDigit(long digit, char c, String s) {
115 if (digit < 0 || digit > 9) {
116 throw BindingSupportImpl.getInstance().invalidObjectId("Invalid digit '" + c +
117 "' in primary key for OID String: '" + s + "'", null);
118 }
119 }
120
121 public void writeExternal(ObjectOutput out) throws IOException {
122 convertToRealOID();
123 out.writeInt(classId);
124 out.writeLong(pk);
125 }
126
127 public void readExternal(ObjectInput in) throws IOException {
128 classId = in.readInt();
129 pk = in.readLong();
130 }
131
132 public String toString() {
133 convertToRealOID();
134 return classId + "-" + pk;
135 }
136
137 private void convertToRealOID() {
138 if (actualOID == null) return;
139 if (!actualOID.isNew()) return;
140 NewObjectOID newOid = (NewObjectOID) actualOID;
141 getActualOID(newOid);
142
143 classId = newOid.getCmd().classId;
144 pk = actualOID.getLongPrimaryKey();
145 }
146
147
150 private void getActualOID(NewObjectOID newOid) {
151 if (newOid.realOID != null) {
152 actualOID = ((NewObjectOID)actualOID).realOID;
153 } else {
154 if (ce != null) {
156 PCStateMan sm = (PCStateMan) ce.get();
157 if (sm != null && !sm.getPmProxy().isClosed()) {
158 actualOID = sm.getRealOID();
159 } else {
160 throw BindingSupportImpl.getInstance().exception("The transaction is which this " +
161 "JDO Object Id was used was never finished");
162 }
163 } else {
164 throw BindingSupportImpl.getInstance().exception("The transaction is which this " +
165 "JDO Object Id was used was never finished");
166 }
167 }
168 }
169
170 public boolean equals(Object object) {
171 convertToRealOID();
172 if (object instanceof VersantOid) {
173 VersantOid o = (VersantOid)object;
174 o.convertToRealOID();
175 return classId == o.classId && pk == o.pk;
176 }
177 return false;
178 }
179
180 public int hashCode() {
181 convertToRealOID();
182 return classId + (int)pk * 29;
183 }
184
185
186 }
187 |
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