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1
21 package com.db4o.inside.marshall;
22
23 import com.db4o.inside.convert.conversions.*;
24
25
28 public class MarshallerFamily {
29
30
31 public static class FamilyVersion{
32
33 public static final int PRE_MARSHALLER = 0;
34
35 public static final int MARSHALLER = 1;
36
37 public static final int BTREE_FIELD_INDEXES = 2;
38
39 }
40
41 private static int FAMILY_VERSION = FamilyVersion.BTREE_FIELD_INDEXES;
42
43 public final ArrayMarshaller _array;
44
45 public final ClassMarshaller _class;
46
47 public final FieldMarshaller _field;
48
49 public final ObjectMarshaller _object;
50
51 public final PrimitiveMarshaller _primitive;
52
53 public final StringMarshaller _string;
54
55 public final UntypedMarshaller _untyped;
56
57 private final int _converterVersion;
58
59
60 private final static MarshallerFamily[] allVersions = new MarshallerFamily[] {
61
62
64 new MarshallerFamily(
65 0,
66 new ArrayMarshaller0(),
67 new ClassMarshaller0(),
68 new FieldMarshaller0(),
69 new ObjectMarshaller0(),
70 new PrimitiveMarshaller0(),
71 new StringMarshaller0(),
72 new UntypedMarshaller0()),
73
74 new MarshallerFamily(
75 ClassIndexesToBTrees_5_5.VERSION,
76 new ArrayMarshaller1(),
77 new ClassMarshaller1(),
78 new FieldMarshaller0(),
79 new ObjectMarshaller1(),
80 new PrimitiveMarshaller1(),
81 new StringMarshaller1(),
82 new UntypedMarshaller1()),
83
84 new MarshallerFamily(
85 FieldIndexesToBTrees_5_7.VERSION,
86 new ArrayMarshaller1(),
87 new ClassMarshaller2(),
88 new FieldMarshaller1(),
89 new ObjectMarshaller1(),
90 new PrimitiveMarshaller1(),
91 new StringMarshaller1(),
92 new UntypedMarshaller1())};
93
94 private MarshallerFamily(
95 int converterVersion,
96 ArrayMarshaller arrayMarshaller,
97 ClassMarshaller classMarshaller,
98 FieldMarshaller fieldMarshaller,
99 ObjectMarshaller objectMarshaller,
100 PrimitiveMarshaller primitiveMarshaller,
101 StringMarshaller stringMarshaller,
102 UntypedMarshaller untypedMarshaller) {
103 _converterVersion = converterVersion;
104 _array = arrayMarshaller;
105 _array._family = this;
106 _class = classMarshaller;
107 _class._family = this;
108 _field = fieldMarshaller;
109 _object = objectMarshaller;
110 _object._family = this;
111 _primitive = primitiveMarshaller;
112 _primitive._family = this;
113 _string = stringMarshaller;
114 _untyped = untypedMarshaller;
115 _untyped._family = this;
116 }
117
118 public static MarshallerFamily version(int n) {
119 return allVersions[n];
120 }
121
122 public static MarshallerFamily current() {
123 if(FAMILY_VERSION < FamilyVersion.BTREE_FIELD_INDEXES){
124 throw new IllegalStateException  ("Using old marshaller versions to write database files is not supported, source code has been removed.");
125 }
126 return version(FAMILY_VERSION);
127 }
128
129 public static MarshallerFamily forConverterVersion(int n){
130 MarshallerFamily result = allVersions[0];
131 for (int i = 1; i < allVersions.length; i++) {
132 if(allVersions[i]._converterVersion > n){
133 return result;
134 }
135 result = allVersions[i];
136 }
137 return result;
138 }
139
140 }
141
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