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21 package com.db4o.db4ounit.common.fieldindex;
22
23 import com.db4o.*;
24 import com.db4o.config.*;
25 import com.db4o.db4ounit.common.btree.*;
26 import com.db4o.db4ounit.common.foundation.IntArrays4;
27 import com.db4o.ext.StoredField;
28 import com.db4o.foundation.Visitor4;
29 import com.db4o.inside.btree.*;
30 import com.db4o.query.Query;
31 import com.db4o.reflect.ReflectClass;
32
33 import db4ounit.Assert;
34
35
36 public class FieldIndexTestCase extends FieldIndexTestCaseBase {
37
38 private static final int[] FOOS = new int[]{3,7,9,4};
39
40 public static void main(String  [] arguments) {
41 new FieldIndexTestCase().runSolo();
42 }
43
44 protected void configure(Configuration config) {
45 super.configure(config);
46 }
47
48 protected void store() {
49 storeItems(FOOS);
50 }
51
52 public void testTraverseValues(){
53 StoredField field = yapField();
54 ExpectingVisitor expectingVisitor = new ExpectingVisitor(IntArrays4.toObjectArray(FOOS));
55 field.traverseValues(expectingVisitor);
56 expectingVisitor.assertExpectations();
57 }
58
59 public void testAllThere() throws Exception {
60 for (int i = 0; i < FOOS.length; i++) {
61 Query q = createQuery(FOOS[i]);
62 ObjectSet objectSet = q.execute();
63 Assert.areEqual(1, objectSet.size());
64 FieldIndexItem fii = (FieldIndexItem) objectSet.next();
65 Assert.areEqual(FOOS[i], fii.foo);
66 }
67 }
68
69 public void testAccessingBTree() throws Exception {
70 BTree bTree = yapField().getIndex(trans());
71 Assert.isNotNull(bTree);
72 expectKeysSearch(bTree, FOOS);
73 }
74
75 private void expectKeysSearch(BTree btree, int[] values) {
76 int lastValue = Integer.MIN_VALUE;
77 for (int i = 0; i < values.length; i++) {
78 if(values[i] != lastValue){
79 final ExpectingVisitor expectingVisitor = BTreeAssert.createExpectingVisitor(values[i], IntArrays4.occurences(values, values[i]));
80 BTreeRange range = fieldIndexKeySearch(trans(), btree, new Integer (values[i]));
81 BTreeAssert.traverseKeys(range, new Visitor4() {
82 public void visit(Object obj) {
83 FieldIndexKey fik = (FieldIndexKey)obj;
84 expectingVisitor.visit(fik.value());
85 }
86 });
87 expectingVisitor.assertExpectations();
88 lastValue = values[i];
89 }
90 }
91 }
92
93 private FieldIndexKey fieldIndexKey(int integerPart, Object composite){
94 return new FieldIndexKey(integerPart, composite);
95 }
96
97 private BTreeRange fieldIndexKeySearch(Transaction trans, BTree btree, Object key) {
98 BTreeNodeSearchResult start = btree.searchLeaf(trans, fieldIndexKey(0, key), SearchTarget.LOWEST);
100 BTreeNodeSearchResult end = btree.searchLeaf(trans, fieldIndexKey(Integer.MAX_VALUE, key), SearchTarget.LOWEST);
101 return start.createIncludingRange(end);
102 }
103
104 private YapField yapField() {
105 ReflectClass claxx = stream().reflector().forObject(new FieldIndexItem());
106 YapClass yc = stream().getYapClass(claxx);
107 YapField yf = yc.getYapField("foo");
108 return yf;
109 }
110
111
112 }
113 |
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