Polishing.

Apply sort of unpaged Pageable to QuerydslMongoPredicateExecutor query.

Original pull request: #4773
Closes #4771

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/query/Query.java

@@ -271,16 +271,11 @@ public class Query implements ReadConcernAware, ReadPreferenceAware {
 	 */
 	public Query with(Pageable pageable) {
 
-		if (pageable.isUnpaged()) {
+		if (pageable.isPaged()) {
-			if(pageable.getSort().isSorted()) {
+			this.limit = pageable.toLimit();
-				return with(pageable.getSort());
+			this.skip = pageable.getOffset();
-			}
-			return this;
 		}
 
-		this.limit = pageable.toLimit();
-		this.skip = pageable.getOffset();
-
 		return with(pageable.getSort());
 	}
 

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/repository/support/QuerydslMongoPredicateExecutor.java

@@ -22,12 +22,13 @@ import java.util.function.Function;
 import java.util.stream.Stream;
 
 import org.bson.Document;
+
 import org.springframework.dao.IncorrectResultSizeDataAccessException;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.Pageable;
-import org.springframework.data.domain.Window;
 import org.springframework.data.domain.ScrollPosition;
 import org.springframework.data.domain.Sort;
+import org.springframework.data.domain.Window;
 import org.springframework.data.mongodb.core.MongoOperations;
 import org.springframework.data.mongodb.core.query.BasicQuery;
 import org.springframework.data.mongodb.repository.query.MongoEntityInformation;
@@ -199,11 +200,10 @@ public class QuerydslMongoPredicateExecutor<T> extends QuerydslPredicateExecutor
 	 */
 	private SpringDataMongodbQuery<T> applyPagination(SpringDataMongodbQuery<T> query, Pageable pageable) {
 
-		if (pageable.isUnpaged()) {
+		if (pageable.isPaged()) {
-			return query;
+			query = query.offset(pageable.getOffset()).limit(pageable.getPageSize());
 		}
 
-		query = query.offset(pageable.getOffset()).limit(pageable.getPageSize());
 		return applySorting(query, pageable.getSort());
 	}
 

spring-data-mongodb/src/test/java/org/springframework/data/mongodb/repository/support/QuerydslMongoPredicateExecutorIntegrationTests.java

@@ -141,6 +141,13 @@ public class QuerydslMongoPredicateExecutorIntegrationTests {
 				.getContent()).containsExactly(dave);
 	}
 
+	@Test // GH-4771
+	public void findUnpagedPage() {
+
+		assertThat(repository.findAll(person.lastname.isNotNull(), Pageable.unpaged(Sort.by("firstname"))))
+				.containsExactly(carter, dave, oliver);
+	}
+
 	@Test // DATAMONGO-362, DATAMONGO-1848
 	public void springDataMongodbQueryShouldAllowJoinOnDBref() {