Merge Java 8 samples into basic one.

mongodb/example/src/main/java/example/springdata/mongodb/customer/CustomerRepository.java

@@ -16,11 +16,13 @@
 package example.springdata.mongodb.customer;
 
 import java.util.List;
+import java.util.stream.Stream;
 
 import org.springframework.data.domain.Sort;
 import org.springframework.data.geo.Distance;
 import org.springframework.data.geo.GeoResults;
 import org.springframework.data.geo.Point;
+import org.springframework.data.mongodb.repository.Query;
 import org.springframework.data.repository.CrudRepository;
 
 /**
@@ -47,4 +49,7 @@ public interface CustomerRepository extends CrudRepository<Customer, String> {
 	 * @return
 	 */
 	GeoResults<Customer> findByAddressLocationNear(Point point, Distance distance);
+
+	@Query("{}")
+	Stream<Customer> findAllByCustomQueryWithStream();
 }

mongodb/example/src/test/java/example/springdata/mongodb/customer/CustomerRepositoryIntegrationTest.java

@@ -19,6 +19,7 @@ import static org.hamcrest.Matchers.*;
 import static org.junit.Assert.*;
 
 import java.util.List;
+import java.util.stream.Stream;
 
 import org.junit.Before;
 import org.junit.Test;
@@ -82,6 +83,17 @@ public class CustomerRepositoryIntegrationTest {
 		assertThat(result.get(1), is(oliver));
 	}
 
+	/**
+	 * Test case to show the usage of Java {@link Stream}.
+	 */
+	@Test
+	public void findCustomersAsStream() {
+
+		try (Stream<Customer> result = repository.findAllByCustomQueryWithStream()) {
+			result.forEach(System.out::println);
+		}
+	}
+
 	/**
 	 * Test case to show the usage of the geo-spatial APIs to lookup people within a given distance of a reference point.
 	 */