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* to you under the Apache License, Version 2.0 (the
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package org.apache.cayenne.lifecycle.cache;
import java.util.Collection;
import java.util.Collections;
import org.apache.cayenne.ObjectContext;
import org.apache.cayenne.Persistent;
import org.apache.cayenne.di.Module;
import org.apache.cayenne.lifecycle.db.E1;
import org.apache.cayenne.lifecycle.unit.CacheInvalidationCase;
import org.apache.cayenne.query.ObjectSelect;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
/**
* @since 4.0
*/
public class CacheInvalidationCustomHandlerIT extends CacheInvalidationCase {
@Override
protected Module buildInvalidationModule() {
return CacheInvalidationModuleBuilder.builder()
.noCacheGroupsHandler()
.invalidationHandler(G1InvalidationHandler.class)
.build();
}
@Test
public void testInvalidate() throws Exception {
ObjectContext context = runtime.newContext();
// no explicit cache group must still work - it lands inside default cache called 'cayenne.default.cache'
ObjectSelect<E1> g0 = ObjectSelect.query(E1.class).localCache();
ObjectSelect<E1> g1 = ObjectSelect.query(E1.class).localCache("g1");
ObjectSelect<E1> g2 = ObjectSelect.query(E1.class).localCache("g2");
assertEquals(0, g0.selectCount(context));
assertEquals(0, g1.selectCount(context));
assertEquals(0, g2.selectCount(context));
e1.insert(1).insert(2);
// inserted via SQL... query results are still cached...
assertEquals(0, g0.selectCount(context));
assertEquals(0, g1.selectCount(context));
assertEquals(0, g2.selectCount(context));
E1 e1 = context.newObject(E1.class);
context.commitChanges();
// inserted via Cayenne... "g1" should get auto refreshed...
assertEquals(0, g0.selectCount(context));
assertEquals(3, g1.selectCount(context));
assertEquals(0, g2.selectCount(context));
context.deleteObject(e1);
context.commitChanges();
// deleted via Cayenne... "g1" should get auto refreshed
assertEquals(0, g0.selectCount(context));
assertEquals(2, g1.selectCount(context));
assertEquals(0, g2.selectCount(context));
}
public static class G1InvalidationHandler implements InvalidationHandler {
@Override
public InvalidationFunction canHandle(Class<? extends Persistent> type) {
return new InvalidationFunction() {
@Override
public Collection<CacheGroupDescriptor> apply(Persistent persistent) {
return Collections.singleton(new CacheGroupDescriptor("g1"));
}
};
}
}
}