Add override of toN1qlRemoveString() to StringQuery.

src/main/java/org/springframework/data/couchbase/core/ReactiveRemoveByQueryOperationSupport.java

@@ -80,11 +80,7 @@ public Flux<RemoveResult> all() {
 		}
 
 		private QueryOptions buildQueryOptions() {
-			final QueryOptions options = QueryOptions.queryOptions();
-			if (scanConsistency != null) {
-				options.scanConsistency(scanConsistency);
-			}
-			return options;
+			return query.buildQueryOptions(scanConsistency);
 		}
 
 		@Override

src/main/java/org/springframework/data/couchbase/core/query/Query.java

@@ -323,18 +323,24 @@ StringBasedN1qlQueryParser.N1qlSpelValues getN1qlSpelValues(ReactiveCouchbaseTem
 	 * @return QueryOptions
 	 */
 	public QueryOptions buildQueryOptions(QueryScanConsistency scanConsistency) {
-		final QueryOptions options = QueryOptions.queryOptions();
+		QueryOptions options = QueryOptions.queryOptions();
+		if (options == null) { // add/override what we got from PseudoArgs
+			options = QueryOptions.queryOptions();
+		}
 		if (getParameters() != null) {
 			if (getParameters() instanceof JsonArray) {
 				options.parameters((JsonArray) getParameters());
 			} else {
 				options.parameters((JsonObject) getParameters());
 			}
 		}
+		if (scanConsistency == null
+				|| scanConsistency == QueryScanConsistency.NOT_BOUNDED && getScanConsistency() != null) {
+			scanConsistency = getScanConsistency();
+		}
 		if (scanConsistency != null) {
 			options.scanConsistency(scanConsistency);
 		}
-
 		return options;
 	}
 

src/main/java/org/springframework/data/couchbase/core/query/StringQuery.java

@@ -73,4 +73,16 @@ public String toN1qlSelectString(ReactiveCouchbaseTemplate template, String coll
 		appendSkipAndLimit(statement);
 		return statement.toString();
 	}
+
+	/**
+	 * toN1qlRemoveString - use toN1qlSelectString
+	 * 
+	 * @param template
+	 * @param collectionName
+	 * @param domainClass
+	 */
+	@Override
+	public String toN1qlRemoveString(ReactiveCouchbaseTemplate template, String collectionName, Class domainClass) {
+		return toN1qlSelectString(template, collectionName, domainClass, domainClass, false, null);
+	}
 }

src/test/java/org/springframework/data/couchbase/domain/Airport.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2019 the original author or authors.
+ * Copyright 2017-2021 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -38,9 +38,9 @@ public class Airport extends ComparableEntity {
 
 	String icao;
 
-	@CreatedBy private String createdBy;
+	@Version Number version;
 
-	@Version long version;
+	@CreatedBy private String createdBy;
 
 
 	@PersistenceConstructor
@@ -62,6 +62,22 @@ public String getIcao() {
 		return icao;
 	}
 
+	public Airport withId(String id) {
+		return new Airport(id, this.iata, this.icao);
+	}
+
+	public Airport withIcao(String icao) {
+		return new Airport(this.getId(), this.iata, icao);
+	}
+
+	public Airport withIata(String iata) {
+		return new Airport(this.getId(), iata, this.icao);
+	}
+
+	public Airport clearVersion() {
+		version = Long.valueOf(0);
+		return this;
+	}
 	public String getCreatedBy() {
 		return createdBy;
 	}

src/test/java/org/springframework/data/couchbase/domain/AirportRepository.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2019 the original author or authors.
+ * Copyright 2017-2021 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,32 +17,35 @@
 package org.springframework.data.couchbase.domain;
 
 import java.util.List;
+import java.util.Optional;
 
+import org.springframework.data.couchbase.core.RemoveResult;
+import org.springframework.data.couchbase.repository.CouchbaseRepository;
 import org.springframework.data.couchbase.repository.Query;
 import org.springframework.data.couchbase.repository.ScanConsistency;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.Pageable;
-import org.springframework.data.repository.PagingAndSortingRepository;
 import org.springframework.data.repository.query.Param;
 import org.springframework.stereotype.Repository;
 
 import com.couchbase.client.java.query.QueryScanConsistency;
 
 /**
- * template class for Reactive Couchbase operations
+ * Airport repository for testing <br>
+ * The DynamicProxyable interface exposes airportRepository.withScope(scope), withCollection() and withOptions() It's
+ * necessary on the repository object itself because the withScope() etc methods need to return an object of type
+ * AirportRepository so that one can code... airportRepository = airportRepository.withScope(scopeName) without having
+ * to cast the result.
  *
  * @author Michael Nitschinger
  * @author Michael Reiche
  */
 @Repository
-public interface AirportRepository extends PagingAndSortingRepository<Airport, String> {
+public interface AirportRepository extends CouchbaseRepository<Airport, String> {
 
 	@Override
 	@ScanConsistency(query = QueryScanConsistency.REQUEST_PLUS)
-	Iterable<Airport> findAll();
-
-	@Override
-	Airport save(Airport airport);
+	List<Airport> findAll();
 
 	@ScanConsistency(query = QueryScanConsistency.REQUEST_PLUS)
 	List<Airport> findAllByIata(String iata);
@@ -57,6 +60,10 @@ public interface AirportRepository extends PagingAndSortingRepository<Airport, S
 	@ScanConsistency(query = QueryScanConsistency.REQUEST_PLUS)
 	List<Airport> getAllByIata(String iata);
 
+	@Query("#{#n1ql.delete} WHERE #{#n1ql.filter} and  iata = $1 #{#n1ql.returning}")
+	@ScanConsistency(query = QueryScanConsistency.REQUEST_PLUS)
+	List<RemoveResult> deleteByIata(String iata);
+
 	@Query("SELECT __cas, * from `#{#n1ql.bucket}` where iata = $1")
 	@ScanConsistency(query = QueryScanConsistency.REQUEST_PLUS)
 	List<Airport> getAllByIataNoID(String iata);
@@ -86,4 +93,8 @@ Long countFancyExpression(@Param("projectIds") List<String> projectIds, @Param("
 
 	@ScanConsistency(query = QueryScanConsistency.REQUEST_PLUS)
 	Page<Airport> findAllByIataNot(String iata, Pageable pageable);
+
+	@ScanConsistency(query = QueryScanConsistency.REQUEST_PLUS)
+	Optional<Airport> findByIdAndIata(String id, String iata);
+
 }

src/test/java/org/springframework/data/couchbase/repository/CouchbaseRepositoryQueryIntegrationTests.java

@@ -198,7 +198,7 @@ void findByEnum() {
 			vie = new Airport("airports::vie", "vie", "loww");
 			vie = airportRepository.save(vie);
 			Airport airport2 = airportRepository.findByIata(Iata.vie);
-			assertNotNull(airport2, "should have found "+vie);
+			assertNotNull(airport2, "should have found " + vie);
 			assertEquals(airport2.getId(), vie.getId());
 		} finally {
 			airportRepository.delete(vie);
@@ -310,6 +310,19 @@ void stringQueryTest() throws Exception {
 		}
 	}
 
+	@Test
+	void stringDeleteTest() throws Exception {
+		Airport airport = new Airport("airports::vie", "vie", "lowx");
+		Airport otherAirport = new Airport("airports::xxx", "xxx", "lxxx");
+		try {
+			airportRepository.save(airport);
+			airportRepository.save(otherAirport);
+			assertEquals(1, airportRepository.deleteByIata("vie").size()); // gets exactly one with no exception
+		} finally {
+			airportRepository.deleteById(otherAirport.getId());
+		}
+	}
+
 	@Test
 	void threadSafeStringParametersTest() throws Exception {
 		String[] iatas = { "JFK", "IAD", "SFO", "SJC", "SEA", "LAX", "PHX" };
@@ -397,7 +410,6 @@ void findBySimplePropertyAudited() {
 		}
 	}
 
-
 	private void sleep(int millis) {
 		try {
 			Thread.sleep(millis); // so they are executed out-of-order