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1
21 package com.db4o.db4ounit.common.querying;
22
23
24 import java.lang.reflect.Field  ;
25
26 import com.db4o.ObjectSet;
27 import com.db4o.config.*;
28 import com.db4o.query.*;
29
30 import db4ounit.Assert;
31 import db4ounit.extensions.AbstractDb4oTestCase;
32
33
36 public class MultiFieldIndexQueryTestCase extends AbstractDb4oTestCase {
37
38 public static void main(String [] args) {
39 new MultiFieldIndexQueryTestCase().runSolo();
40 }
41
42 public static class Book {
43
44 public Person[] authors;
45 public String title;
46
47 public Book(){}
48
49 public Book(String title, Person[] authors){
50 this.title = title;
51 this.authors = authors;
52 }
53
54 public String toString(){
55 String ret = title;
56 if(authors != null){
57 for (int i = 0; i < authors.length; i++) {
58 ret += "\n " + authors[i].toString();
59 }
60 }
61 return ret;
62 }
63 }
64
65 public static class Person {
66
67 public String firstName;
68 public String lastName;
69
70 public Person(){}
71
72 public Person(String firstName, String lastName){
73 this.firstName = firstName;
74 this.lastName = lastName;
75 }
76
77 public String toString(){
78 return "Person " + firstName + " " + lastName;
79 }
80 }
81
82 protected void configure(Configuration config) {
83 indexAllFields(config,Book.class);
84 indexAllFields(config,Person.class);
85 }
86
87 protected void indexAllFields(Configuration config,Class clazz) {
88 final Field [] fields = clazz.getDeclaredFields();
89 for (int i = 0; i < fields.length; i++) {
90 indexField(config,clazz, fields[i].getName());
91 }
92 final Class superclass = clazz.getSuperclass();
93 if (superclass != null) {
94 indexAllFields(config,superclass);
95 }
96 }
97
98 protected void store() throws Exception {
99 Person aaron = new Person("Aaron", "OneOK");
100 Person bill = new Person("Bill", "TwoOK");
101 Person chris = new Person("Chris", "ThreeOK");
102 Person dave = new Person("Dave", "FourOK");
103 Person neil = new Person("Neil", "Notwanted");
104 Person nat = new Person("Nat", "Neverwanted");
105 db().set(new Book("Persistence possibilities", new Person[] { aaron,
106 bill, chris }));
107 db().set(new Book("Persistence using S.O.D.A.",
108 new Person[] { aaron }));
109 db().set(new Book("Persistence using JDO",
110 new Person[] { bill, dave }));
111 db().set(new Book("Don't want to find Phil", new Person[] { aaron,
112 bill, neil }));
113 db().set(new Book("Persistence by Jeff", new Person[] { nat }));
114 }
115
116 public void test() {
117 Query qBooks = newQuery();
118 qBooks.constrain(Book.class);
119 qBooks.descend("title").constrain("Persistence").like();
120 Query qAuthors = qBooks.descend("authors");
121 Query qFirstName = qAuthors.descend("firstName");
122 Query qLastName = qAuthors.descend("lastName");
123 Constraint cAaron = qFirstName.constrain("Aaron").and(
124 qLastName.constrain("OneOK"));
125 Constraint cBill = qFirstName.constrain("Bill").and(
126 qLastName.constrain("TwoOK"));
127 cAaron.or(cBill);
128 ObjectSet results = qAuthors.execute();
129 Assert.areEqual(4, results.size());
130 while (results.hasNext()) {
131 Person person = (Person) results.next();
132 Assert.isTrue(person.lastName.endsWith("OK"));
133 }
134 }
135
136 }
137 |
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