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* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
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*
* http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.cayenne.access;
import java.util.ArrayList;
import java.util.List;
import org.apache.art.Artist;
import org.apache.art.Gallery;
import org.apache.cayenne.query.MockQuery;
import org.apache.cayenne.query.Query;
import org.apache.cayenne.query.SelectQuery;
import org.apache.cayenne.unit.CayenneCase;
/**
* Tests various DataContextDelegate methods invocation and consequences on DataContext
* behavior.
*
*/
public class DataContextDelegateTest extends CayenneCase {
protected DataContext context;
protected Gallery gallery;
protected Artist artist;
@Override
protected void setUp() throws Exception {
super.setUp();
context = createDataContextWithSharedCache();
// prepare a single gallery record
gallery = (Gallery) context.newObject("Gallery");
gallery.setGalleryName("version1");
// prepare a single artist record
artist = (Artist) context.newObject("Artist");
artist.setArtistName("version1");
context.commitChanges();
}
public void testWillPerformGenericQuery() throws Exception {
final List<Query> queriesPerformed = new ArrayList<Query>(1);
DataContextDelegate delegate = new MockDataContextDelegate() {
@Override
public Query willPerformGenericQuery(DataContext context, Query query) {
queriesPerformed.add(query);
return query;
}
};
context.setDelegate(delegate);
// test that delegate is consulted before select
MockQuery query = new MockQuery();
context.performGenericQuery(query);
assertTrue("Delegate is not notified of a query being run.", queriesPerformed
.contains(query));
assertEquals(1, queriesPerformed.size());
assertTrue("Delegate unexpectedly blocked the query.", query.isRouteCalled());
}
public void testWillPerformGenericQueryBlocked() throws Exception {
final List<Query> queriesPerformed = new ArrayList<Query>(1);
DataContextDelegate delegate = new MockDataContextDelegate() {
@Override
public Query willPerformGenericQuery(DataContext context, Query query) {
queriesPerformed.add(query);
return null;
}
};
context.setDelegate(delegate);
MockQuery query = new MockQuery();
context.performGenericQuery(query);
assertTrue("Delegate is not notified of a query being run.", queriesPerformed
.contains(query));
assertEquals(1, queriesPerformed.size());
assertFalse("Delegate couldn't block the query.", query.isRouteCalled());
}
public void testWillPerformQuery() throws Exception {
final List<Query> queriesPerformed = new ArrayList<Query>(1);
DataContextDelegate delegate = new MockDataContextDelegate() {
@Override
public Query willPerformQuery(DataContext context, Query query) {
queriesPerformed.add(query);
return query;
}
};
context.setDelegate(delegate);
// test that delegate is consulted before select
SelectQuery query = new SelectQuery(Gallery.class);
List<?> results = context.performQuery(query);
assertTrue("Delegate is not notified of a query being run.", queriesPerformed
.contains(query));
assertEquals(1, queriesPerformed.size());
assertNotNull(results);
}
public void testWillPerformQueryBlocked() throws Exception {
final List<Query> queriesPerformed = new ArrayList<Query>(1);
DataContextDelegate delegate = new MockDataContextDelegate() {
@Override
public Query willPerformQuery(DataContext context, Query query) {
queriesPerformed.add(query);
return null;
}
};
context.setDelegate(delegate);
SelectQuery query = new SelectQuery(Gallery.class);
List<?> results = context.performQuery(query);
assertTrue("Delegate is not notified of a query being run.", queriesPerformed
.contains(query));
assertEquals(1, queriesPerformed.size());
assertNotNull(results);
// blocked
assertEquals("Delegate couldn't block the query.", 0, results.size());
}
}