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1
21 package com.db4o.test.legacy;
22
23 import com.db4o.*;
24 import com.db4o.db4ounit.common.querying.MultiFieldIndexQueryTestCase.*;
25 import com.db4o.query.*;
26 import com.db4o.test.*;
27
28
29 public class Book {
30
31 public Person[] authors;
32 public String  title;
33
34 public Book(){}
35
36 public Book(String title, Person[] authors){
37 this.title = title;
38 this.authors = authors;
39 }
40
41 public void store(){
42 Person aaron = new Person("Aaron", "OneOK");
43 Person bill = new Person("Bill", "TwoOK");
44 Person chris = new Person("Chris", "ThreeOK");
45 Person dave = new Person("Dave", "FourOK");
46 Person neil = new Person("Neil", "Notwanted");
47 Person nat = new Person("Nat", "Neverwanted");
48 Test.store(new Book("Persistence possibilities", new Person[] { aaron, bill,chris}));
49 Test.store(new Book("Persistence using S.O.D.A.", new Person[]{aaron}));
50 Test.store(new Book("Persistence using JDO", new Person[]{bill, dave}));
51 Test.store(new Book("Don't want to find Phil", new Person[]{aaron, bill, neil}));
52 Test.store(new Book("Persistence by Jeff", new Person[]{nat}));
53 }
54
55 public void test(){
56 Query qBooks = Test.query();
57 qBooks.constrain(Book.class);
58 qBooks.descend("title").constrain("Persistence").like();
59 Query qAuthors = qBooks.descend("authors");
60 Query qFirstName = qAuthors.descend("firstName");
61 Query qLastName = qAuthors.descend("lastName");
62 Constraint cAaron =
63 qFirstName.constrain("Aaron").and(
64 qLastName.constrain("OneOK")
65 );
66 Constraint cBill =
67 qFirstName.constrain("Bill").and(
68 qLastName.constrain("TwoOK")
69 );
70 cAaron.or(cBill);
71 ObjectSet results = qAuthors.execute();
72 Test.ensure(results.size() == 4);
73 while(results.hasNext()){
74 Person person = (Person)results.next();
75 Test.ensure(person.lastName.endsWith("OK"));
76 }
77 }
78
79
80 public String toString(){
81 String ret = title;
82 if(authors != null){
83 for (int i = 0; i < authors.length; i++) {
84 ret += "\n " + authors[i].toString();
85 }
86 }
87 return ret;
88 }
89 }
90 |
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