BAEL-5401: Update Fields of Documents in MongoDB Using the Java Driver (#11889)
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Kapil Khandelwal
GitHub
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28519a494c
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package com.baeldung.mongo.update;
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import org.bson.Document;
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import com.mongodb.MongoClient;
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import com.mongodb.client.MongoCollection;
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import com.mongodb.client.MongoDatabase;
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import com.mongodb.client.model.Filters;
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import com.mongodb.client.model.FindOneAndReplaceOptions;
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import com.mongodb.client.model.FindOneAndUpdateOptions;
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import com.mongodb.client.model.ReturnDocument;
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import com.mongodb.client.model.Updates;
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import com.mongodb.client.result.UpdateResult;
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public class UpdateFields {
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private static MongoClient mongoClient;
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private static MongoDatabase database;
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private static MongoCollection<Document> collection;
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public static void updateOne() {
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UpdateResult updateResult = collection.updateOne(Filters.eq("student_name", "Paul Starc"), Updates.set("address", "Hostel 2"));
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System.out.println("updateResult:- " + updateResult);
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}
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public static void updateMany() {
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UpdateResult updateResult = collection.updateMany(Filters.lt("age", 20), Updates.set("Review", true));
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System.out.println("updateResult:- " + updateResult);
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}
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public static void replaceOne() {
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Document replaceDocument = new Document();
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replaceDocument.append("student_id", 8764)
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.append("student_name", "Paul Starc")
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.append("address", "Hostel 3")
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.append("age", 18)
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.append("roll_no", 199406);
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UpdateResult updateResult = collection.replaceOne(Filters.eq("student_id", 8764), replaceDocument);
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System.out.println("updateResult:- " + updateResult);
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}
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public static void findOneAndReplace() {
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Document replaceDocument = new Document();
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replaceDocument.append("student_id", 8764)
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.append("student_name", "Paul Starc")
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.append("address", "Hostel 4")
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.append("age", 18)
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.append("roll_no", 199406);
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Document sort = new Document("roll_no", 1);
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Document projection = new Document("_id", 0).append("student_id", 1)
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.append("address", 1);
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Document resultDocument = collection.findOneAndReplace(Filters.eq("student_id", 8764), replaceDocument, new FindOneAndReplaceOptions().upsert(true)
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.sort(sort)
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.projection(projection)
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.returnDocument(ReturnDocument.AFTER));
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System.out.println("resultDocument:- " + resultDocument);
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}
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public static void findOneAndUpdate() {
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Document sort = new Document("roll_no", 1);
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Document projection = new Document("_id", 0).append("student_id", 1)
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.append("address", 1);
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Document resultDocument = collection.findOneAndUpdate(Filters.eq("student_id", 8764), Updates.inc("roll_no", 5), new FindOneAndUpdateOptions().upsert(true)
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.sort(sort)
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.projection(projection)
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.returnDocument(ReturnDocument.AFTER));
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System.out.println("resultDocument:- " + resultDocument);
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}
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public static void setup() {
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if (mongoClient == null) {
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mongoClient = new MongoClient("localhost", 27017);
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database = mongoClient.getDatabase("baeldung");
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collection = database.getCollection("student");
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}
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}
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public static void main(String[] args) {
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//
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// Connect to cluster (default is localhost:27017)
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//
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setup();
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//
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// Update a document using updateOne method
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//
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updateOne();
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//
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// Update documents using updateMany method
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//
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updateMany();
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//
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// replace a document using replaceOne method
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//
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replaceOne();
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//
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// replace a document using findOneAndReplace method
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//
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findOneAndReplace();
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//
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// Update a document using findOneAndUpdate method
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//
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findOneAndUpdate();
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}
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}
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@ -0,0 +1,143 @@
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package com.baeldung.update;
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import static org.junit.Assert.assertEquals;
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import static org.junit.Assert.assertFalse;
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import static org.junit.Assert.assertNotNull;
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import org.bson.Document;
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import org.junit.BeforeClass;
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import org.junit.Test;
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import com.mongodb.MongoClient;
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import com.mongodb.client.MongoCollection;
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import com.mongodb.client.MongoDatabase;
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import com.mongodb.client.model.Filters;
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import com.mongodb.client.model.FindOneAndReplaceOptions;
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import com.mongodb.client.model.FindOneAndUpdateOptions;
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import com.mongodb.client.model.ReturnDocument;
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import com.mongodb.client.model.Updates;
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import com.mongodb.client.result.UpdateResult;
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public class UpdateFieldLiveTest {
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private static MongoClient mongoClient;
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private static MongoDatabase db;
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private static MongoCollection<Document> collection;
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@BeforeClass
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public static void setup() {
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if (mongoClient == null) {
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mongoClient = new MongoClient("localhost", 27017);
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db = mongoClient.getDatabase("baeldung");
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collection = db.getCollection("student");
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collection.insertOne(Document.parse("{ \"student_id\": 8764,\"student_name\": \"Paul Starc\",\"address\": \"Hostel 1\",\"age\": 16,\"roll_no\":199406}"));
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}
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}
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@Test
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public void updateOne() {
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UpdateResult updateResult = collection.updateOne(Filters.eq("student_name", "Paul Starc"), Updates.set("address", "Hostel 2"));
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Document studentDetail = collection.find(Filters.eq("student_name", "Paul Starc"))
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.first();
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assertNotNull(studentDetail);
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assertFalse(studentDetail.isEmpty());
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String address = studentDetail.getString("address");
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String expectedAdderess = "Hostel 2";
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assertEquals(expectedAdderess, address);
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}
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@Test
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public void updateMany() {
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UpdateResult updateResult = collection.updateMany(Filters.lt("age", 20), Updates.set("Review", true));
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Document studentDetail = collection.find(Filters.eq("student_name", "Paul Starc"))
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.first();
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assertNotNull(studentDetail);
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assertFalse(studentDetail.isEmpty());
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Boolean review = studentDetail.getBoolean("Review");
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Boolean expectedAdderess = true;
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assertEquals(expectedAdderess, review);
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}
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@Test
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public void replaceOne() {
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Document replaceDocument = new Document();
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replaceDocument.append("student_id", 8764)
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.append("student_name", "Paul Starc")
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.append("address", "Hostel 3")
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.append("age", 18)
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.append("roll_no", 199406);
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UpdateResult updateResult = collection.replaceOne(Filters.eq("student_id", 8764), replaceDocument);
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Document studentDetail = collection.find(Filters.eq("student_name", "Paul Starc"))
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.first();
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assertNotNull(studentDetail);
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assertFalse(studentDetail.isEmpty());
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Integer age = studentDetail.getInteger("age");
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Integer expectedAge = 18;
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assertEquals(expectedAge, age);
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}
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@Test
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public void findOneAndReplace() {
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Document replaceDocument = new Document();
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replaceDocument.append("student_id", 8764)
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.append("student_name", "Paul Starc")
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.append("address", "Hostel 4")
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.append("age", 18)
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.append("roll_no", 199406);
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Document sort = new Document("roll_no", 1);
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Document projection = new Document("_id", 0).append("student_id", 1)
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.append("address", 1);
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Document resultDocument = collection.findOneAndReplace(Filters.eq("student_id", 8764), replaceDocument, new FindOneAndReplaceOptions().upsert(true)
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.sort(sort)
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.projection(projection)
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.returnDocument(ReturnDocument.AFTER));
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Document studentDetail = collection.find(Filters.eq("student_name", "Paul Starc"))
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.first();
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assertNotNull(studentDetail);
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assertFalse(studentDetail.isEmpty());
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Integer age = studentDetail.getInteger("age");
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Integer expectedAge = 18;
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assertEquals(expectedAge, age);
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}
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@Test
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public void findOneAndUpdate() {
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Document sort = new Document("roll_no", 1);
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Document projection = new Document("_id", 0).append("student_id", 1)
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.append("address", 1);
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Document resultDocument = collection.findOneAndUpdate(Filters.eq("student_id", 8764), Updates.inc("roll_no", 5), new FindOneAndUpdateOptions().upsert(true)
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.sort(sort)
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.projection(projection)
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.returnDocument(ReturnDocument.AFTER));
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Document studentDetail = collection.find(Filters.eq("student_name", "Paul Starc"))
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.first();
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assertNotNull(studentDetail);
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assertFalse(studentDetail.isEmpty());
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}
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}
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