/*
* Copyright 2015 MongoDB, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package primer;
import org.junit.Test;
// @import: start
import org.bson.Document;
import com.mongodb.async.SingleResultCallback;
import com.mongodb.client.result.DeleteResult;
// @import: end
public class RemovePrimer extends PrimerTestCase {
@Test
public void removeMatchingDocuments() {
// @begin: remove-matching-documents
db.getCollection("restaurants").deleteMany(new Document("borough", "Manhattan"),
new SingleResultCallback<DeleteResult>() {
@Override
public void onResult(final DeleteResult result, final Throwable t) {
System.out.println("Operation Finished");
System.out.println(result);
}
});
/*
// @post: start
The deleteMany operation returns a ``DeleteResult`` which contains information about the operation.
The ``getDeletedCount`` method returns number of documents deleted.
// @post: end
*/
// @end: remove-matching-documents
}
@Test
public void removeAllDocuments() {
// @begin: remove-all-documents
db.getCollection("restaurants").deleteMany(new Document(),
new SingleResultCallback<DeleteResult>() {
@Override
public void onResult(final DeleteResult result, final Throwable t) {
System.out.println("Operation Finished");
System.out.println(result);
}
});
/*
// @post: start
The deleteMany operation returns a ``DeleteResult`` which contains information about the operation.
The ``getDeletedCount`` method returns number of documents deleted.
// @post: end
*/
// @end: remove-all-documents
}
@Test
public void dropCollection() {
// @begin: drop-collection
db.getCollection("restaurants").drop(new SingleResultCallback<Void>() {
@Override
public void onResult(final Void result, final Throwable t) {
System.out.println("Operation Finished");
}
});
// @end: drop-collection
}
}