#193 - Added examples for using projections with pagination in JPA and MongoDB.

Requires an upgrade to snapshots as the JPA implementation is broken in Hopper SR1 but will be fixed in SR2 (Boot 1.4 RC1). Switched to use @SpringBootTest in test cases.

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

@@ -19,6 +19,8 @@ import java.util.Collection;
 
 import org.bson.types.ObjectId;
 import org.springframework.beans.factory.annotation.Value;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
 import org.springframework.data.repository.CrudRepository;
 
 /**
@@ -78,4 +80,12 @@ interface CustomerRepository extends CrudRepository<Customer, ObjectId> {
 	 * @return
 	 */
 	<T> T findProjectedById(ObjectId id, Class<T> projection);
+
+	/**
+	 * Projections used with pagination.
+	 * 
+	 * @param pageable
+	 * @return
+	 */
+	Page<CustomerProjection> findPagedProjectedBy(Pageable pageable);
 }

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

@@ -25,8 +25,12 @@ import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
-import org.springframework.boot.test.SpringApplicationConfiguration;
+import org.springframework.boot.test.context.SpringBootTest;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.PageRequest;
+import org.springframework.data.domain.Sort;
+import org.springframework.data.domain.Sort.Direction;
 import org.springframework.data.projection.TargetAware;
 import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
 
@@ -36,7 +40,7 @@ import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
  * @author Oliver Gierke
  */
 @RunWith(SpringJUnit4ClassRunner.class)
-@SpringApplicationConfiguration
+@SpringBootTest
 public class CustomerRepositoryIntegrationTest {
 
 	@Configuration
@@ -104,4 +108,13 @@ public class CustomerRepositoryIntegrationTest {
 		assertThat(result.getFirstname(), is("Dave"));
 		assertThat(((TargetAware) result).getTarget(), is(instanceOf(Customer.class)));
 	}
+
+	@Test
+	public void supportsProjectionInCombinationWithPagination() {
+
+		Page<CustomerProjection> page = customers
+				.findPagedProjectedBy(new PageRequest(0, 1, new Sort(Direction.ASC, "lastname")));
+
+		assertThat(page.getContent().get(0).getFirstname(), is("Carter"));
+	}
 }