DATACOUCH-650 - Implements CrudRepository and ReactiveCrudRepository.deleteById(Iterable<ID> ids).

Original pull request: #279.

src/main/java/org/springframework/data/couchbase/repository/support/SimpleCouchbaseRepository.java

@@ -42,6 +42,7 @@ import com.couchbase.client.java.query.QueryScanConsistency;
  *
  * @author Michael Nitschinger
  * @author Mark Paluch
+ * @author Jens Schauder
  */
 public class SimpleCouchbaseRepository<T, ID> implements CouchbaseRepository<T, ID> {
 
@@ -130,6 +131,12 @@ public class SimpleCouchbaseRepository<T, ID> implements CouchbaseRepository<T,
 		couchbaseOperations.removeById().all(Streamable.of(entities).map(entityInformation::getId).toList());
 	}
 
+	@Override
+	public void deleteAllById(Iterable<? extends ID> ids) {
+		Assert.notNull(ids, "The given Iterable of ids must not be null!");
+		couchbaseOperations.removeById().all(Streamable.of(ids).map(Objects::toString).toList());
+	}
+
 	@Override
 	public long count() {
 		return couchbaseOperations.findByQuery(entityInformation.getJavaType()).consistentWith(buildQueryScanConsistency())

src/main/java/org/springframework/data/couchbase/repository/support/SimpleReactiveCouchbaseRepository.java

@@ -44,6 +44,7 @@ import com.couchbase.client.java.query.QueryScanConsistency;
  * @author Christoph Strobl
  * @author David Kelly
  * @author Douglas Six
+ * @author Jens Schauder
  * @since 3.0
  */
 public class SimpleReactiveCouchbaseRepository<T, ID> implements ReactiveCouchbaseRepository<T, ID> {
@@ -185,6 +186,11 @@ public class SimpleReactiveCouchbaseRepository<T, ID> implements ReactiveCouchba
 		return Flux.from(entityStream).flatMap(this::delete).single();
 	}
 
+	@Override
+	public Mono<Void> deleteAllById(final Iterable<? extends ID> ids) {
+		return operations.removeById().all(Streamable.of(ids).map(Object::toString).toList()).then();
+	}
+
 	@SuppressWarnings("unchecked")
 	@Override
 	public Mono<Long> count() {