public BuildContext createContext() {
RuleBaseConfiguration conf = new RuleBaseConfiguration();
KnowledgeBaseImpl rbase = new KnowledgeBaseImpl("ID", conf);
BuildContext buildContext = new BuildContext(rbase, rbase.getReteooBuilder().getIdGenerator());
RuleImpl rule = new RuleImpl("rule1", "org.pkg1", null);
InternalKnowledgePackage pkg = new KnowledgePackageImpl("org.pkg1");
pkg.getDialectRuntimeRegistry().setDialectData("mvel", new MVELDialectRuntimeData());
pkg.addRule(rule);
buildContext.setRule(rule);
return buildContext;
}
@Test
public void testQueryTerminalNode() {
final ClassObjectType queryObjectType = new ClassObjectType(DroolsQuery.class);
final ObjectTypeNode queryObjectTypeNode =
new ObjectTypeNode(
this.buildContext.getNextId(), this.entryPoint, queryObjectType, buildContext);
queryObjectTypeNode.attach(buildContext);
ClassFieldReader extractor = store.getReader(DroolsQuery.class, "name");
MvelConstraint constraint =
new MvelConstraintTestUtil(
"name == \"query-1\"", FieldFactory.getInstance().getFieldValue("query-1"), extractor);
final QueryImpl query = new QueryImpl("query-1");
buildContext.setRule(query);
AlphaNode alphaNode =
new AlphaNode(this.buildContext.getNextId(), constraint, queryObjectTypeNode, buildContext);
alphaNode.attach(buildContext);
final LeftInputAdapterNode liaNode =
new LeftInputAdapterNode(this.buildContext.getNextId(), alphaNode, this.buildContext);
liaNode.attach(buildContext);
final ClassObjectType cheeseObjectType = new ClassObjectType(Cheese.class);
final ObjectTypeNode cheeseObjectTypeNode =
new ObjectTypeNode(
this.buildContext.getNextId(), this.entryPoint, cheeseObjectType, buildContext);
cheeseObjectTypeNode.attach(buildContext);
extractor = store.getReader(Cheese.class, "type");
constraint =
new MvelConstraintTestUtil(
"type == \"stilton\"", FieldFactory.getInstance().getFieldValue("stilton"), extractor);
alphaNode =
new AlphaNode(
this.buildContext.getNextId(), constraint, cheeseObjectTypeNode, buildContext);
alphaNode.attach(buildContext);
BuildContext buildContext = new BuildContext(kBase, kBase.getReteooBuilder().getIdGenerator());
buildContext.setTupleMemoryEnabled(false);
final JoinNode joinNode =
new JoinNode(
this.buildContext.getNextId(),
liaNode,
alphaNode,
EmptyBetaConstraints.getInstance(),
buildContext);
joinNode.attach(buildContext);
final QueryTerminalNode queryNode =
new QueryTerminalNode(
this.buildContext.getNextId(),
joinNode,
query,
((QueryImpl) query).getLhs(),
0,
buildContext);
queryNode.attach(buildContext);
final KnowledgePackageImpl pkg = new KnowledgePackageImpl("com.drools.test");
pkg.addRule(query);
((KnowledgeBaseImpl) kBase).addPackages(Arrays.asList(new InternalKnowledgePackage[] {pkg}));
KieSession kSession = kBase.newKieSession();
QueryResults results = kSession.getQueryResults("query-1");
assertEquals(0, results.size());
final Cheese stilton1 = new Cheese("stilton", 100);
final FactHandle handle1 = kSession.insert(stilton1);
results = kSession.getQueryResults("query-1");
assertEquals(1, results.size());
final Cheese cheddar = new Cheese("cheddar", 55);
kSession.insert(cheddar);
results = kSession.getQueryResults("query-1");
assertEquals(1, results.size());
final Cheese stilton2 = new Cheese("stilton", 5);
final FactHandle handle2 = kSession.insert(stilton2);
results = kSession.getQueryResults("query-1");
assertEquals(2, results.size());
/**
* QueryResultsRow result = results.get( 0 ); assertEquals( 1, result.size() ); assertEquals(
* stilton1, result.get( 0 ) );
*
* <p>result = results.get( 1 ); assertEquals( 1, result.size() ); assertEquals( stilton2,
* result.get( 0 ) );
*/
int i = 0;
for (final Iterator<QueryResultsRow> it = results.iterator(); it.hasNext(); ) {
QueryResultsRow resultRow = it.next();
if (i == 1) {
// assertSame( stilton2, result.g( 0 ) );
} else {
// assertSame( stilton1, result.get( 0 ) );
}
i++;
}
kSession.delete(handle1);
results = kSession.getQueryResults("query-1");
assertEquals(1, results.size());
kSession.delete(handle2);
results = kSession.getQueryResults("query-1");
assertEquals(0, results.size());
}