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1
24 package org.objectweb.jalisto.se.impl.readonly;
25
26 import org.objectweb.jalisto.se.api.*;
27 import org.objectweb.jalisto.se.api.internal.InternalPhysicalFileAccess;
28 import org.objectweb.jalisto.se.api.physical.PluggablePhysicalFileAccess;
29 import org.objectweb.jalisto.se.api.internal.*;
30 import org.objectweb.jalisto.se.exception.JalistoException;
31 import org.objectweb.jalisto.se.impl.InFileAddress;
32 import org.objectweb.jalisto.se.JalistoFactory;
33 import org.objectweb.jalisto.se.impl.trace.Trace;
34
35 import java.util.Collection  ;
36
37 public class InternalPhysicalFileAccessReadOnlyImpl implements InternalPhysicalFileAccess {
38
39 public InternalPhysicalFileAccessReadOnlyImpl(JalistoProperties properties) {
40 InternalFactory internalFactory = JalistoFactory.getInternalFactory();
41 this.tracer = internalFactory.getTracer(properties);
42 this.internalAccess = internalFactory.getPhysicalAccess(properties);
43 this.baseImage = new InTransactionBaseImageReadOnly(internalAccess, properties);
44 }
45
46
47 public boolean isNewBase() {
48 return internalAccess.isNewBase();
49 }
50
51
52 public void insertFileObject(JalistoObject fo) {
53 throw new UnsupportedOperationException ();
54 }
55
56 public JalistoObject readFileObjectAt(InFileAddress ifa) {
57 tracer.println(Trace.PHYSICAL, "readFileObjectAt({0})", ifa);
58 try {
59 return baseImage.readFileObjectAt(ifa);
60 } catch (Exception e) {
61 throw new JalistoException("could not read object at " + ifa, e);
62 }
63 }
64
65 public void updateFileObject(JalistoObject fo) {
66 throw new UnsupportedOperationException ();
67 }
68
69 public void deleteFileObject(InFileAddress ifa) {
70 throw new UnsupportedOperationException ();
71 }
72
73 public void writeObjectInBase(InFileAddress ifa, Object o, boolean isUpdate) {
74 throw new UnsupportedOperationException ();
75 }
76
77
78 public PluggablePhysicalFileAccess getInternalAccess() {
79 return internalAccess;
80 }
81
82
83 public void begin() {
84 tracer.println(Trace.PHYSICAL, "begin()");
85 }
86
87 public void commit() {
88 tracer.println(Trace.PHYSICAL, "commit()");
89 baseImage.commit();
90 }
91
92 public void rollback() {
93 tracer.println(Trace.PHYSICAL, "rollback()");
94 baseImage.rollback();
95 }
96
97 public void close() {
98 }
99
100 public void open() {
101 }
102
103 public Collection getKeysStartingWith(String filter, boolean withOrder) {
104 return baseImage.getKeysStartingWith(filter, withOrder);
105 }
106
107
108 public InTransactionBaseImage getBaseImage() {
109 return baseImage;
110 }
111
112 public String toString() {
113 return internalAccess.toString();
114 }
115
116
117 private InTransactionBaseImage baseImage;
118 private PluggablePhysicalFileAccess internalAccess;
119 private Trace tracer;
120
121
122 }
123 |
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