public static void main(String[] args) {
IndexedCollection<Car> cars = new ConcurrentIndexedCollection<Car>();
cars.addAll(CarFactory.createCollectionOfCars(100000));
cars.addIndex(NavigableIndex.onAttribute(Car.CAR_ID));
QueryLog queryLog = new QueryLog(System.out);
ResultSet<Car> resultSet =
cars.retrieve(
has(Car.CAR_ID),
queryOptions(
orderBy(descending(Car.CAR_ID)),
queryLog,
applyThresholds(threshold(INDEX_ORDERING_SELECTIVITY, 1.0))));
{
long start = System.currentTimeMillis();
int count = IteratorUtil.countElements(resultSet);
long timeTaken = System.currentTimeMillis() - start;
System.out.println("Time taken for " + count + " results: " + timeTaken);
}
System.out.println();
{
long start = System.currentTimeMillis();
int count = IteratorUtil.countElements(resultSet);
long timeTaken = System.currentTimeMillis() - start;
System.out.println("Time taken for " + count + " results: " + timeTaken);
}
}
public static void main(String[] args) {
IndexedCollection<Car> cars = CQEngine.newInstance();
cars.addIndex(HashIndex.onAttribute(Car.MODEL));
cars.addIndex(HashIndex.onAttribute(Car.COLOR));
cars.addIndex(NavigableIndex.onAttribute(Car.DOORS));
cars.addIndex(RadixTreeIndex.onAttribute(Car.MODEL));
cars.addIndex(ReversedRadixTreeIndex.onAttribute(Car.MODEL));
cars.addIndex(InvertedRadixTreeIndex.onAttribute(Car.MODEL));
cars.addIndex(SuffixTreeIndex.onAttribute(Car.MODEL));
cars.add(new Car(1, "Ford", "Focus", Color.BLUE, 5, 9000.50));
cars.add(new Car(2, "Ford", "Fiesta", Color.BLUE, 2, 5000.00));
cars.add(new Car(3, "Ford", "F-150", Color.RED, 2, 9500.00));
cars.add(new Car(4, "Honda", "Civic", Color.RED, 5, 5000.00));
cars.add(new Car(5, "Toyota", "Prius", Color.BLACK, 3, 9700.00));
Query<Car> query;
System.out.println("\nAll cars, ordered by carId:");
query = all(Car.class);
for (Car car : cars.retrieve(query, queryOptions(orderBy(ascending(Car.CAR_ID))))) {
System.out.println(car);
}
System.out.println("\nFord cars:");
query = equal(Car.MANUFACTURER, "Ford");
for (Car car : cars.retrieve(query)) {
System.out.println(car);
}
System.out.println("\n3-door cars:");
query = equal(Car.DOORS, 3);
for (Car car : cars.retrieve(query)) {
System.out.println(car);
}
System.out.println("\n2 or 3-door cars:");
query = between(Car.DOORS, 2, 3);
for (Car car : cars.retrieve(query)) {
System.out.println(car);
}
System.out.println("\n2 or 5-door cars:");
query = in(Car.DOORS, 2, 5);
for (Car car : cars.retrieve(query)) {
System.out.println(car);
}
System.out.println("\nBlue Ford cars:");
query = and(equal(Car.COLOR, Color.BLUE), equal(Car.MANUFACTURER, "Ford"));
for (Car car : cars.retrieve(query)) {
System.out.println(car);
}
System.out.println("\nNOT 3-door cars:");
query = not(equal(Car.DOORS, 3));
for (Car car : cars.retrieve(query)) {
System.out.println(car);
}
System.out.println("\nCars which have 5 doors and which are not red:");
query = and(equal(Car.DOORS, 5), not(equal(Car.COLOR, Color.RED)));
for (Car car : cars.retrieve(query)) {
System.out.println(car);
}
System.out.println("\nNOT 3-door cars, sorted by doors ascending:");
query = not(equal(Car.DOORS, 3));
for (Car car : cars.retrieve(query, queryOptions(orderBy(ascending(Car.DOORS))))) {
System.out.println(car);
}
System.out.println("\nNOT 3-door cars, sorted by doors ascending then price descending:");
query = not(equal(Car.DOORS, 3));
for (Car car :
cars.retrieve(query, queryOptions(orderBy(ascending(Car.DOORS), descending(Car.PRICE))))) {
System.out.println(car);
}
System.out.println("\nCars whose model starts with 'F':");
query = startsWith(Car.MODEL, "F");
for (Car car : cars.retrieve(query)) {
System.out.println(car);
}
System.out.println("\nCars whose model ends with 's':");
query = endsWith(Car.MODEL, "s");
for (Car car : cars.retrieve(query)) {
System.out.println(car);
}
System.out.println("\nCars whose model contains 'i':");
query = contains(Car.MODEL, "i");
for (Car car : cars.retrieve(query)) {
System.out.println(car);
}
System.out.println("\nCars whose model is contained in 'Banana, Focus, Civic, Foobar':");
query = isContainedIn(Car.MODEL, "Banana, Focus, Civic, Foobar");
for (Car car : cars.retrieve(query)) {
System.out.println(car);
}
}