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Java > Open Source Codes > jimm > datavision > test > mock > source > MockDataCursor


1 package jimm.datavision.test.mock.source;
2 import jimm.datavision.Selectable;
3 import jimm.datavision.source.DataCursor;
4 import jimm.datavision.source.Query;
5 import java.util.List JavaDoc;
6 import java.util.ArrayList JavaDoc;
7
8 public class MockDataCursor extends DataCursor {
9
10 protected static final String JavaDoc[] CITIES = {
11   "Chicago", "New Jersey", "New York"
12 };
13 protected static final String JavaDoc[] SHORT_NAMES = { "CH", "NJ", "NY" };
14 protected static final String JavaDoc[] SELECTABLES = {
15   "office.name", "2", "jobs.post_date", "jobs.ID",
16   "jobs.title", "jobs.hourly rate"
17 };
18
19 protected int cityIndex;
20 protected int jobIndex;
21 protected Query query;
22
23 static int indexOfSelectable(Selectable sel) {
24   String JavaDoc selId = sel.getId().toString();
25   for (int i = 0; i < SELECTABLES.length; ++i)
26     if (selId.equals(SELECTABLES[i]))
27       return i;
28
29   throw new RuntimeException JavaDoc("can't find selectable \"" +
30                  sel.getDisplayName() + "\" with id " + selId);
31 }
32
33 public MockDataCursor(Query q) {
34   jobIndex = cityIndex = -1;
35   query = q;
36 }
37
38 protected List JavaDoc readRowData() {
39   ++jobIndex;
40   if ((jobIndex % 100) == 0) // 100 jobs per city
41 ++cityIndex;
42   if (cityIndex >= CITIES.length) // no more cities; report is done
43 return null;
44   // When using parameter, stop after Chicago
45 if (query.getEditableWhereClause().startsWith("office.name = ") &&
46       cityIndex > 0)
47     return null;
48
49   List JavaDoc row = new ArrayList JavaDoc();
50   row.add(CITIES[cityIndex]); // office.name
51 row.add(SHORT_NAMES[cityIndex]); // Short Office Name (id "2")
52 row.add(new java.util.Date JavaDoc()); // jobs.post_date
53 row.add(new Integer JavaDoc(jobIndex)); // jobs.ID
54 row.add("This is the short description of job " + jobIndex); // jobs.title
55 row.add(jobIndex == 0 ? null // jobs."hourly rate"
56 : new Integer JavaDoc(jobIndex * 100));
57
58   return row;
59 }
60
61 }
62
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