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1
24 package org.objectweb.jalisto.samples.basic2;
25
26 import org.objectweb.jalisto.se.impl.meta.type.MetaTypeFactory;
27 import org.objectweb.jalisto.se.impl.*;
28 import org.objectweb.jalisto.se.api.Session;
29 import org.objectweb.jalisto.se.api.Transaction;
30 import org.objectweb.jalisto.se.api.ClassDescription;
31 import org.objectweb.jalisto.samples.basic2.data.Book;
32
33 import java.util.Collection  ;
34 import java.util.Iterator ;
35
36 public class JalistoBookDemo {
37
38 public static void main(String [] args) {
39 String jalistoPropertiesFilename = "jalisto.properties";
40 int nbrBook = 5000;
41
42 try {
43 jalistoPropertiesFilename = args[0];
44 nbrBook = Integer.parseInt(args[1]);
45 } catch (Exception e) {
46 }
47
48 JalistoBookDemo demo = new JalistoBookDemo();
49 demo.initialise(jalistoPropertiesFilename);
50 demo.run(nbrBook);
51 }
52
53 public void initialise(String jalistoPropertiesFilename) {
54 session = null;
56 tx = session.currentTransaction();
58
59 ClassDescription meta = JalistoFactory.createClassDescription(Book.class.getName());
61 meta.addField(JalistoFactory.createFieldDescription("title", MetaTypeFactory.StringType));
62 meta.addField(JalistoFactory.createFieldDescription("pages", MetaTypeFactory.IntegerType));
63 meta.addField(JalistoFactory.createFieldDescription("comments", MetaTypeFactory.StringType));
64 session.defineClass(meta);
66 }
67
68 public void run(int nbrBook) {
69 long startTime;
70 long execTime;
71 Iterator iterator;
72
73 System.out.println("JalistoBookDemo is running :");
74
75 System.out.println("Create " + nbrBook + " books...");
76 startTime = System.currentTimeMillis();
77
78 tx.begin();
79 for (int i = 0; i < nbrBook; i++) {
80 Book book = Book.newBook();
81 Object [] o = book.toArray();
82 Object oid = session.createObject(o, Book.class);
83 }
84 tx.commit();
85
86 execTime = System.currentTimeMillis() - startTime;
87 System.out.println("ok ! It takes " + execTime + " ms.\n");
88
89
90 System.out.println("Get oids of all books...");
91 startTime = System.currentTimeMillis();
92
93 tx.begin();
94 Collection oids = session.getExtent(Book.class).readFully().collection();
95 tx.commit();
96
97 execTime = System.currentTimeMillis() - startTime;
98 System.out.println("ok ! It takes " + execTime + " ms.\n");
99
100
101 System.out.println("Add a comment to all books...");
102 startTime = System.currentTimeMillis();
103
104 tx.begin();
105 iterator = oids.iterator();
106 int i = 0;
107 while (iterator.hasNext()) {
108 Object oid = iterator.next();
109 Object [] o = session.readObjectByOid(oid);
110 Book book = Book.toBook(o);
111 book.setComments("comments number " + i);
112 session.updateObjectByOid(oid, book.toArray());
113 i++;
114 }
115 tx.commit();
116
117 execTime = System.currentTimeMillis() - startTime;
118 System.out.println("ok ! It takes " + execTime + " ms.\n");
119
120
121 System.out.println("Delete all books...");
122 startTime = System.currentTimeMillis();
123
124 tx.begin();
125 iterator = oids.iterator();
126 while (iterator.hasNext()) {
127 session.deleteObjectByOid(iterator.next());
128 }
129 tx.commit();
130
131 execTime = System.currentTimeMillis() - startTime;
132 System.out.println("ok ! It takes " + execTime + " ms.\n");
133
134 session.reorganize();
135 }
136
137 private Session session;
138 private Transaction tx;
139 }
140 |
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