Examples with DeleteResult com.mongodb.client.result.DeleteResult used on opensource projects

Example 41 with DeleteResult

use of com.mongodb.client.result.DeleteResult in project mongo-java-driver by mongodb.

the class QuickTour method main.

/**
 * Run this main method to see the output of this quick example.
 *
 * @param args takes an optional single argument for the connection string
 */
public static void main(final String[] args) {
    MongoClient mongoClient;
    if (args.length == 0) {
        // connect to the local database server
        mongoClient = MongoClients.create();
    } else {
        mongoClient = MongoClients.create(args[0]);
    }
    // get handle to "mydb" database
    MongoDatabase database = mongoClient.getDatabase("mydb");
    // get a handle to the "test" collection
    final MongoCollection<Document> collection = database.getCollection("test");
    // drop all the data in it
    ObservableSubscriber<Void> successSubscriber = new OperationSubscriber<>();
    collection.drop().subscribe(successSubscriber);
    successSubscriber.await();
    // make a document and insert it
    Document doc = new Document("name", "MongoDB").append("type", "database").append("count", 1).append("info", new Document("x", 203).append("y", 102));
    ObservableSubscriber<InsertOneResult> insertOneSubscriber = new OperationSubscriber<>();
    collection.insertOne(doc).subscribe(insertOneSubscriber);
    insertOneSubscriber.await();
    // get it (since it's the only one in there since we dropped the rest earlier on)
    ObservableSubscriber<Document> documentSubscriber = new PrintDocumentSubscriber();
    collection.find().first().subscribe(documentSubscriber);
    documentSubscriber.await();
    // now, lets add lots of little documents to the collection so we can explore queries and cursors
    List<Document> documents = new ArrayList<>();
    for (int i = 0; i < 100; i++) {
        documents.add(new Document("i", i));
    }
    ObservableSubscriber<InsertManyResult> insertManySubscriber = new OperationSubscriber<>();
    collection.insertMany(documents).subscribe(insertManySubscriber);
    insertManySubscriber.await();
    // find first
    documentSubscriber = new PrintDocumentSubscriber();
    collection.find().first().subscribe(documentSubscriber);
    documentSubscriber.await();
    // lets get all the documents in the collection and print them out
    documentSubscriber = new PrintDocumentSubscriber();
    collection.find().subscribe(documentSubscriber);
    documentSubscriber.await();
    // Query Filters
    // now use a query to get 1 document out
    documentSubscriber = new PrintDocumentSubscriber();
    collection.find(eq("i", 71)).first().subscribe(documentSubscriber);
    documentSubscriber.await();
    // now use a range query to get a larger subset
    documentSubscriber = new PrintDocumentSubscriber();
    collection.find(gt("i", 50)).subscribe(documentSubscriber);
    successSubscriber.await();
    // range query with multiple constraints
    documentSubscriber = new PrintDocumentSubscriber();
    collection.find(and(gt("i", 50), lte("i", 100))).subscribe(documentSubscriber);
    successSubscriber.await();
    // Sorting
    documentSubscriber = new PrintDocumentSubscriber();
    collection.find(exists("i")).sort(descending("i")).first().subscribe(documentSubscriber);
    documentSubscriber.await();
    // Projection
    documentSubscriber = new PrintDocumentSubscriber();
    collection.find().projection(excludeId()).first().subscribe(documentSubscriber);
    documentSubscriber.await();
    // Aggregation
    documentSubscriber = new PrintDocumentSubscriber();
    collection.aggregate(asList(match(gt("i", 0)), project(Document.parse("{ITimes10: {$multiply: ['$i', 10]}}")))).subscribe(documentSubscriber);
    documentSubscriber.await();
    documentSubscriber = new PrintDocumentSubscriber();
    collection.aggregate(singletonList(group(null, sum("total", "$i")))).first().subscribe(documentSubscriber);
    documentSubscriber.await();
    // Update One
    ObservableSubscriber<UpdateResult> updateSubscriber = new OperationSubscriber<>();
    collection.updateOne(eq("i", 10), set("i", 110)).subscribe(updateSubscriber);
    updateSubscriber.await();
    // Update Many
    updateSubscriber = new OperationSubscriber<>();
    collection.updateMany(lt("i", 100), inc("i", 100)).subscribe(updateSubscriber);
    updateSubscriber.await();
    // Delete One
    ObservableSubscriber<DeleteResult> deleteSubscriber = new OperationSubscriber<>();
    collection.deleteOne(eq("i", 110)).subscribe(deleteSubscriber);
    deleteSubscriber.await();
    // Delete Many
    deleteSubscriber = new OperationSubscriber<>();
    collection.deleteMany(gte("i", 100)).subscribe(deleteSubscriber);
    deleteSubscriber.await();
    // Create Index
    OperationSubscriber<String> createIndexSubscriber = new PrintSubscriber<>("Create Index Result: %s");
    collection.createIndex(new Document("i", 1)).subscribe(createIndexSubscriber);
    createIndexSubscriber.await();
    // Clean up
    successSubscriber = new OperationSubscriber<>();
    collection.drop().subscribe(successSubscriber);
    successSubscriber.await();
    // release resources
    mongoClient.close();
}

Example 42 with DeleteResult

use of com.mongodb.client.result.DeleteResult in project mongo-java-driver by mongodb.

the class GridFSPublisherCreator method createDeletePublisher.

public static Publisher<Void> createDeletePublisher(final MongoCollection<GridFSFile> filesCollection, final MongoCollection<Document> chunksCollection, @Nullable final ClientSession clientSession, final BsonValue id) {
    notNull("filesCollection", filesCollection);
    notNull("chunksCollection", chunksCollection);
    notNull("id", id);
    BsonDocument filter = new BsonDocument("_id", id);
    Publisher<DeleteResult> fileDeletePublisher;
    if (clientSession == null) {
        fileDeletePublisher = filesCollection.deleteOne(filter);
    } else {
        fileDeletePublisher = filesCollection.deleteOne(clientSession, filter);
    }
    return Mono.from(fileDeletePublisher).flatMap(deleteResult -> {
        if (deleteResult.wasAcknowledged() && deleteResult.getDeletedCount() == 0) {
            throw new MongoGridFSException(format("No file found with the ObjectId: %s", id));
        }
        if (clientSession == null) {
            return Mono.from(chunksCollection.deleteMany(new BsonDocument("files_id", id)));
        } else {
            return Mono.from(chunksCollection.deleteMany(clientSession, new BsonDocument("files_id", id)));
        }
    }).flatMap(i -> Mono.empty());
}

Example 43 with DeleteResult

use of com.mongodb.client.result.DeleteResult in project spring-data-mongodb by spring-projects.

the class ExecutableRemoveOperationSupportTests method removeAllMatching.

// DATAMONGO-1563
@Test
void removeAllMatching() {
    DeleteResult result = template.remove(Person.class).matching(query(where("firstname").is("han"))).all();
    assertThat(result.getDeletedCount()).isEqualTo(1L);
}

Example 44 with DeleteResult

use of com.mongodb.client.result.DeleteResult in project spring-data-mongodb by spring-projects.

the class ReactiveMongoTemplate method doRemove.

protected <T> Mono<DeleteResult> doRemove(String collectionName, Query query, @Nullable Class<T> entityClass) {
    if (query == null) {
        throw new InvalidDataAccessApiUsageException("Query passed in to remove can't be null!");
    }
    Assert.hasText(collectionName, "Collection name must not be null or empty!");
    MongoPersistentEntity<?> entity = getPersistentEntity(entityClass);
    DeleteContext deleteContext = queryOperations.deleteQueryContext(query);
    Document queryObject = deleteContext.getMappedQuery(entity);
    DeleteOptions deleteOptions = deleteContext.getDeleteOptions(entityClass);
    Document removeQuery = deleteContext.getMappedQuery(entity);
    MongoAction mongoAction = new MongoAction(writeConcern, MongoActionOperation.REMOVE, collectionName, entityClass, null, removeQuery);
    WriteConcern writeConcernToUse = prepareWriteConcern(mongoAction);
    return execute(collectionName, collection -> {
        maybeEmitEvent(new BeforeDeleteEvent<>(removeQuery, entityClass, collectionName));
        MongoCollection<Document> collectionToUse = prepareCollection(collection, writeConcernToUse);
        if (LOGGER.isDebugEnabled()) {
            LOGGER.debug(String.format("Remove using query: %s in collection: %s.", serializeToJsonSafely(removeQuery), collectionName));
        }
        if (query.getLimit() > 0 || query.getSkip() > 0) {
            FindPublisher<Document> cursor = new QueryFindPublisherPreparer(query, entityClass).prepare(// 
            collection.find(removeQuery)).projection(MappedDocument.getIdOnlyProjection());
            return // 
            Flux.from(cursor).map(// 
            MappedDocument::of).map(// 
            MappedDocument::getId).collectList().flatMapMany(val -> {
                return collectionToUse.deleteMany(MappedDocument.getIdIn(val), deleteOptions);
            });
        } else {
            return collectionToUse.deleteMany(removeQuery, deleteOptions);
        }
    }).doOnNext(// 
    it -> maybeEmitEvent(new AfterDeleteEvent<>(queryObject, entityClass, collectionName))).next();
}

Example 45 with DeleteResult

use of com.mongodb.client.result.DeleteResult in project spring-data-mongodb by spring-projects.

the class MongoTemplateTests method removeShouldConsiderSkipAndSort.

// DATAMONGO-1870
@Test
public void removeShouldConsiderSkipAndSort() {
    List<Sample> samples = // 
    IntStream.range(0, 100).mapToObj(// 
    i -> new Sample("id-" + i, i % 2 == 0 ? "stark" : "lannister")).collect(Collectors.toList());
    template.insertAll(samples);
    DeleteResult wr = template.remove(new Query().skip(25).with(Sort.by("field")), Sample.class);
    assertThat(wr.getDeletedCount()).isEqualTo(75L);
    assertThat(template.count(new Query(), Sample.class)).isEqualTo(25L);
    assertThat(template.count(query(where("field").is("lannister")), Sample.class)).isEqualTo(25L);
    assertThat(template.count(query(where("field").is("stark")), Sample.class)).isEqualTo(0L);
}