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21 package com.db4o;
22
23 import java.lang.ref.*;
24
25 import com.db4o.config.*;
26 import com.db4o.foundation.*;
27 import com.db4o.reflect.generic.*;
28 import com.db4o.types.*;
29
30 class JDK_1_2 extends JDKReflect {
31
32 JDK_1_2(){
33 }
34
35 public static void link(){
36
39 Object  obj = new TCollection();
40 obj = new TMap();
41 obj = new TSerializable();
42 obj = new TTreeMap();
43 obj = new TTreeSet();
44 }
45
46 Db4oCollections collections(YapStream a_stream){
47 return new P2Collections(a_stream);
48 }
49
50 Object createReferenceQueue() {
51 return new YapReferenceQueue();
52 }
53
54 public Object createWeakReference(Object obj){
55 return new WeakReference(obj);
56 }
57
58 Object createYapRef(Object a_queue, YapObject a_yapObject, Object a_object) {
59 return new YapRef(a_queue, a_yapObject, a_object);
60 }
61
62 Object getContextClassLoader() {
63 return Thread.currentThread().getContextClassLoader();
64 }
65
66 void forEachCollectionElement(Object a_object, Visitor4 a_visitor) {
67 java.util.Iterator i = null;
68 if (a_object instanceof java.util.Collection ) {
69 i = ((java.util.Collection ) a_object).iterator();
70 } else if (a_object instanceof java.util.Map ) {
71 i = ((java.util.Map ) a_object).keySet().iterator();
72 }
73 if (i != null) {
74 while (i.hasNext()) {
75 a_visitor.visit(i.next());
76 }
77 }
78 }
79
80 Object getYapRefObject(Object a_object) {
81 if (a_object instanceof YapRef) {
82 return ((YapRef) a_object).get();
83 }
84 return a_object;
85 }
86
87 boolean isCollectionTranslator(Config4Class a_config) {
88 if (a_config != null) {
89 ObjectTranslator ot = a_config.getTranslator();
90 if (ot != null) {
91 return ot instanceof TCollection || ot instanceof TMap || ot instanceof THashtable;
92 }
93 }
94 return false;
95 }
96
97 public int ver(){
98 return 2;
99 }
100
101 void killYapRef(Object obj){
102 if(obj instanceof YapRef){
103 ((YapRef)obj).i_yapObject = null;
104 }
105 }
106
107 void pollReferenceQueue(YapStream a_stream, Object a_referenceQueue) {
108 if (a_referenceQueue != null) {
109 YapReferenceQueue yrq = (YapReferenceQueue) a_referenceQueue;
110 YapRef ref;
111 synchronized(a_stream.lock()){
112 while ((ref = yrq.yapPoll()) != null) {
113 a_stream.purge1(ref.i_yapObject);
114 }
115 }
116 }
117 }
118
119 public void registerCollections(GenericReflector reflector) {
120 reflector.registerCollection(java.util.Collection .class);
121 reflector.registerCollection(java.util.Map .class);
122 reflector.registerCollectionUpdateDepth(java.util.Map .class, 3);
123 }
124
125 void setAccessible(Object a_accessible) {
126 ((java.lang.reflect.AccessibleObject ) a_accessible).setAccessible(true);
127 }
128
129 public Object weakReferenceTarget(Object weakRef){
130 if(weakRef instanceof WeakReference){
131 return ((WeakReference)weakRef).get();
132 }
133 return weakRef;
134 }
135
136 }
137 |
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