Json Db Java

MongoDB is a JSON-style data store. It is assumed that users of the data feeds provided on this page have a moderate level of understanding of the XML and/or JSON standard and XML or JSON related technologies as defined by www. Teradata Database JSON Data Type brand Software prodname Teradata Database vrm_release 16. It is also possible to pass a ContentHandler or ContainerHandler to the parser. MongoDB Realm will combine Realm, the popular mobile database and data synchronization technology, and MongoDB Stitch, the serverless platform for MongoDB, into a unified solution that makes it easy for you to build powerful and engaging experiences on more devices. What is JSON-P?. on request and. While each document-oriented database implementation differs on the details of this definition, in general, they all assume documents encapsulate and encode data (or information) in some standard format or encoding. UnQLite is a document store database similar to MongoDB, Redis, CouchDB etc. This is an update of the popular post on JSON with MariaDB 10. Developers Nathan Adams Petr Mrázek‎. An array is an ordered sequence of zero or more values. JavaScript Object Notation (JSON) uses name/value pairs. Load JSON data from a file into a DynamoDB table using the AWS SDK for Java. MySQL supports the native JSON data type since version 5. Implementations The following are projects implementing JSON:API. Learn more about them, how they work, when and why you should use JWTs. We've brought the details up-to-date with the latest MariaDB releases. I've included some sample code and the error below. io JSON API to get some financial data, but any JSON API should do. In this tutorial, I'll show you how to write JSON data to a file using JSON. If this mode is set, a single backslash instead of double backslashes can be used to insert the JSON object literal, and the backslashes are preserved. JSON Web Token (JWT) is a compact URL-safe means of representing claims to be transferred between two parties. NET applications with a small footprint (~ 600KB). JSON is considered as a subset of JavaScript but that does not mean that JSON cannot be used with other languages. The main classes are : JSONParser - This parses Json text. Java is not considered an easy-to-use language for non-programmers. This is similar to the tags used by XML. What is RethinkDB?go. Spring MVC RESTful Web Service Spring is today's leading framework for building Java, Enterprise Edition (Java EE) applications. 2 we allow the creation of JSON data using 4 new SQL operators JSON_OBJECT, JSON_OBJECTAGG, JSON_ARRAY, JSON_ARRAYAGG (which are all part of the new SQL 2016 standard). The examples in this post will build on the invoices example that I. The table layout looks like this (other fields removed for. This tutorial shows a very simple example which is to just store important data like shops address or contacts using SQLite Database in the android studio. It lets use good old HTML (or HAML, Jade and friends!) as your template language and lets you extend HTML’s syntax to express your application’s components clearly and succinctly. From the JSON object, we can retrieve the value of the user and send back confirmation. If the page with the form did not have. Published July 2013. JSON format can be easily converted into Java objects in an Object oriented manner. BSON, short for Binary JSON, is a binary-encoded serialization of JSON-like documents. Built using NetBeans and hosted on GlassFish. Streamline authentication with Firebase Authentication on your project and authenticate users across your database instances. Let us discuss how to parse JSON objects using Java with the help of below example. It is available in Java. Cloud SQL offers high performance, scalability, and convenience. Java JSON Tutorial Content: JSON Introduction JSON. Today we are adding native JSON support to Amazon DynamoDB. It is assumed that users of the data feeds provided on this page have a moderate level of understanding of the XML and/or JSON standard and XML or JSON related technologies as defined by www. More demanding projects can seamlessly upgrade to a cluster. A NoSQL tutorial that creates an online database and Java console application using the SQL API for Azure Cosmos DB. Serializable in class. Derby is based on the Java, JDBC, and SQL standards. In the examples above we always used bytes and strings as intermediates between the data and JSON representation on standard out. OData (Open Data Protocol) is an ISO/IEC approved, OASIS standard that defines a set of best practices for building and consuming RESTful APIs. There are certain rules that need to be followed while creating a JSON structure, we will learn about those rules while discussing the Key value pairs. Send multiple json objects java. JSON Processing (JSON-P) is a Java API to process (for e. List of PHP programming file which is converting MySQL db data into JSON data. The class generates the definition of a JavaScript object in JSON. The most common APIs. The operator -> returns JSON object field by key. An object is an unordered collection of zero or more name/value pairs. Check if your JSON is correct, if not find out why with just one click. ajax example with database for beginners and professionals with examples on java,. You're probably familiar with, or at least aware of, the HR schema in Oracle Database, one of several sample schemas that's included for learning purposes. As in the previous series, I’ll base things on a RESTful API scenario. on request and. The movie data is in JSON format, as. Apache Tomcat is an open source Java Servlet Container developed by the Apache Software Foundation (ASF). JSON objects are easy to read and write and most of the technologies provide support for JSON objects. activity_main. How to design your database tables using JSON fields. JSON can represent two structured types: objects and arrays. JSON_TABLE is a powerful function that enables the easy decomposition of JavaScript Object Notation (JSON) data into relational format. Documents: Documentation of the driver's support for BSON document representations. It's written in Java and it's amazing fast: can store up to 150,000 records per second on common hardware. These properties make JSON an ideal data-interchange language. The documents stored in MongoDB are JSON-like. The schema is ready for the creation of clients using almost any programming language and who are also working with VK API. Download and install the MongoDB database. " The name/value pairs do not need to be in. From the JSON object, we can retrieve the value of the user and send back confirmation. Unlike a SQL database, there are no tables or records. Obtain a handle to a DB object to access the JSON store. A OneToMany relationship in Java is where the source object has an attribute that stores a collection of target objects and if those target objects had the inverse relationship back to the source object it would be a ManyToOne relationship. BSON [bee · sahn], short for Bin­ary JSON, is a bin­ary-en­coded seri­al­iz­a­tion of JSON-like doc­u­ments. Canonical Mode A string format that emphasizes type preservation at the expense of readability and interoperability. JSON (JavaScript Object Notation) is a lightweight. List of Main android project files in this project : MainActivity. There are in fact various schemas: The one in your head when you designed the data. Figure 4, “JSON over HTTP to save the blog post” shows how JavaScript has used HTTP to PUT the document to a URL constructed of the database name plus the document ID. so, i want to create that databse data into one json file using servlet. Is it possible to store and query JSON in SQLite? the JSON can contain. Although Oracle Database is an object-relational database, it does support JSON (and XML). It takes a MySQL query result handle and retrieves the query result column names and the query result data. Streamline authentication with Firebase Authentication on your project and authenticate users across your database instances. 次は、「DBから取得した値をJSONに変換し、サーブレット経由でブラウザに表示させる」というサンプルを作ってみる。まずは、Connectionを返すstaticメソッドを作った。DBを管理するようなイメージのクラスだ。 package dao; import java. Our database receives JSON documents from external systems. See Extensions and Omissions for details. JavaScript Object Notation (JSON) uses name/value pairs. Size of uploaded generated files does not exceed 500 kB. 2 we allow the creation of JSON data using 4 new SQL operators JSON_OBJECT, JSON_OBJECTAGG, JSON_ARRAY, JSON_ARRAYAGG (which are all part of the new SQL 2016 standard). Each of the tasks in the ToDo list is stored as JSON documents in Azure Cosmos DB. Enterprise-class JDBC Connectivity. 2; I wanted to use this stuff now, and I opted to go with option 3. Change the values of table attributes by using a TableDescriptor object and then passing that object to the Admin interface's altertable() method. mongodump: Being used to export all datas of a database to files (Put in a folder), including some files ( bson, json) mongostore: Being used to import all datas to a database from dump directory (Product of mongodump). Perform create, read, update, and delete operations on the table. JSON is a text, which is used in exchanging data between a browser and a server. It similarly shows the name "state" is paired with the value "MN. json parser, which is reasonably small but not famous for its performance. Check if your JSON is correct, if not find out why with just one click. In this Java Q&A post I will briefly introduce the second edition of my new book, Java XML and JSON. 227 DEBUG 194 --- [ main] ationConfigEmbeddedWebApplicationContext : Bean factory for org. The keys are strings and the values are the JSON types. With Javascript, if I want check a form for errors, I just type an if-then statement at the top of my. How to construct JSON using Java; Next post Connecting to Oracle database using Apache Spark. With the release of Suricata 2. Then it is important to remember that these libraries define the transformation from JSON to Java while setting the internal Realm names define the transformation from Java to the. we can see that the app in prod was able to connect and create the db by the right name in the gcp console. Simple XPath like query language (JQL). There is no native support for JSON manipulation in Java, however, there are multiple modules that provide this functionality. Your JSON input should contain an array of objects consistings of name/value pairs. Google made this protocol open source and now. To preserve type information, MongoDB adds the following extensions to the JSON format. Agenda• About Anders Karlsson• JSON, the new CSV – The basics!• mysqljson - JSON import and exportwith MariaDB and MySQL• MariaDB JSON Support Extensions• Dynamic columns• MariaDB 10. 2015-11-22 14:26 Daniel Baston * [r14416] remove inaccurate comments (the tests are always performed, and we're calculating a box if we don't have one) 2015-11-21 10:14 Sandro Santilli * [r14411] Remove execute bit from testcases 2015-11-20 19:00 Sandro Santilli * [r14410] Add test for (non-literal) NULL TopoElementArray 2015-11-20 18:42 Sandro. Table of Contents 1. JSON is widely used in web applications or as server response because it's lightweight and more compact than XML. NET is a popular high-performance JSON framework for. First you have to identify the purpose of the inserting of the JSON. For implementations supporting only draft-04 or older, see the Obsolete Implementations page. Java API for JSON Processing: An Introduction to JSON. In Java development, you will often need to read in JSON data, or provide JSON data as an output. Examples are associated with XML, MySQL, MongoDB and APIs to add more value. 2) Set up options: parse numbers, transpose your data, or output an object instead of an array. Creating JSON data in Java JSON. First you have to identify the purpose of the inserting of the JSON. Parse JSON string using JSON parser. Just to demonstrate how JSON can be used along with JavaScript, here is an example:. The JSON object contains methods for parsing JavaScript Object Notation and converting values to JSON. Contribute. And, there’s no need to bolt on a search engine because MarkLogic’s database includes built-in search. Download JAR file json-rpc-1. parse("{name:'mkyong', age:30}"); This code cause exception, but if to work with another tool for mongo – DB allow to save this objects. Oracle Database has a huge amount of functionality that makes this easy. Convert JSON to Java Object. 000 – are stored in an eXist-db database and edited from within oXygen. Published July 2013. If you’re using an earlier version of Python, the simplejson library is available via PyPI. How to work with JSON fields using the Eloquent ORM in Laravel. The following example shows how to convert Java object into JSON string using Jackson. simple is a simple Java toolkit for JSON. With the most. The Search Engine for The Central Repository. We start first by converting to simple POJO then we'll also show you how you can do the same for Collections Object. Java has been generating a lot of excitment because of its unique ability to run the same program on IBM, Mac, and Unix computers. Also the (Java) frameworks required to work with JSON are often relatively easy to implement making quick development possible. You'll see hands-on examples of working with Python's built-in "json" module all the way up to encoding and decoding custom objects. With Javascript, if I want check a form for errors, I just type an if-then statement at the top of my. Let's begin with creating database. Fill the forms and click "Finish" button. Conclusion Reusable interoperability between JSON and XML is possible. Previous entries in this blog have shown how you can store and query existing JSON data. json library. basic example of populating a form from a database using AJAX and JSON, jQuery version - gist:4048580. You can find details about the JSON Java API in the developerWorks article, DB2 JSON capabilities, Part 3: Writing applications with the Java API. The Java API for JSON Processing (JSON-P) enables Java EE applications to parse, transform, and query JSON data using the object model or the streaming model. 2 Resource Services (to simplify, we use the same. What we’re going to do is display the thumbnails of the latest 16 photos, which will link to the medium-sized display of the image. java-json/java-json. Previous Next In this post,we will see how can we read and write JSON using json. APPLICATION_XML, MediaType. A JSON object can be stored in its own file, which is basically just a text file with an extension of. 2019-08-23 10:09:58. JavaScript Object Notation (JSON) uses name/value pairs. Flexible schema for continuous delivery; Fully featured SQL for JSON database. Description. The Java date and time API can be rather confusing when you first try to figure out how to use it. Progress Corticon 5. To preserve type information, MongoDB adds the following extensions to the JSON format. For more information about JSON Schema, see the official website. Size of uploaded generated files does not exceed 500 kB. I've not created such a servlet to test this. In this post, we'll continue exploring XML and JSON in Java 11 and beyond. JSONView ofrecido por gildas. I mean, with the web service that you create in the example (with a web adress that you also add in the code). These examples are extracted from open source projects. JSON is a attractive option for setting up a custom analytics data store. In real project, there should be more logic to create a new user account, and/or persist into database. on request and. We have a huge collection of quotes in our database. BaseX is a robust, high-performance XML database engine and a highly compliant XQuery 3. A JSON array is an ordered collection of values. To be honest the best way to this is to parse and store it in the database. GoAnywhere MFT can connect to RESTful web services for transferring or manipulating JSON and other data formats. Since Oracle Database release 12. H2 is free SQL database written in Java. I'm not Java expert so it took a while for me to write a simple java code to insert data. It offers a small, fast multithreaded and transactional database engine with in-memory and disk-based tables and supports embedded and server modes. Install the latest. select * from TBL_NAME d, JSON_TABLE(d. Once you have that in place you need to take that data and save it off to a. Welcome to the online JSON Viewer, JSON Formatter and JSON Beautifier at codebeautiy. NET applications with a small footprint (~ 600KB). FEATURES • JSON & JSONP support • Syntax highlighting • Collapsible trees, with indent guides • Clickable URLs • Toggle between raw and parsed JSON • Works on any valid JSON page – URL doesn't matter • Works on local files too (if you enable this in chrome://extensions) • You can inspect the JSON by typing "json" in the console (Note: this extension might clash with other. DB2 JSON JAVA API. Download java-json. It is primarily used for transmitting data between a web application and a server. Location and Ticket are JSON Object(s), while Event and Participant are JPA entities. With Firebase Realtime Database on the Blaze pricing plan, you can support your app's data needs at scale by splitting your data across multiple database instances in the same Firebase project. A JSON object is an unordered set of key/value pairs. An array is an ordered sequence of zero or more values. I have a question, well 3 :), only is running with your web service?. Obtained PostgreSQL database can be optimized at user's discletion. Here’s an example of what an object containing analytics data might look like:. JSON files are lightweight, text-based, human-readable, and can be edited using a text editor. The Flickr JSON is a little confusing, and it doesn’t provide a direct link to the thumbnail version of our photos, so we’ll have to use some trickery on our end to get to it, which we’ll cover in just a moment. JSON grew out of a need for stateless, real-time server-to-browser communication protocol without using browser plugins such as Flash or Java applets, the dominant methods used in the early 2000s. What's different about Flexjson is it's control over what gets serialized allowing both deep and shallow copies of objects. When you add data to the JSON tree, it becomes a node in the existing JSON structure with an associated key. 2019-08-23 10:09:58. hi friends please tell me how to create these type in JSON with Servlet. load, overwrite it (with myfile. The BSON library comprehensively supports BSON, the data storage and network transfer format that MongoDB uses for “documents”. JSON will be in string format and string can be saved to a varchar or CLOB data type in database but as of my experience it's not good to keep a very long string in database beca. We've brought the details up-to-date with the latest MariaDB releases. Folks who've worked with me know I'm not always a fan of having data-model classes - in a lot of modern web applications you're just taking data from a database, turning it into java objects and turning those into JSON, and applying an access control rule or two - which means the data model is logic-free, so creating it is a waste of time and. We really only need a bare-bones parser that can read JSON into a simple Java representation and generate JSON from Java. jQgrid accepts either XML or JSON in order to populate the grid, but I'd like to use a JSON string. by Jitendra Kotamraju. This tutorial uses the open source Jackson 2. Querying JSON records via Hive /* ---[ Opacity: A brief rant ]--- */ Despite the popularity of Hadoop and its ecosystem, I've found that much of it is frustratingly underdocumented or at best opaquely documented. as well a standard Key/Value store similar to BerkeleyDB, LevelDB, etc. In this Java tutorial, we are going to write JSON objects and JSON Array in a file using Java. so, i want to create that databse data into one json file using servlet. This Java application tutorial shows you how to create a web-based task-management application that enables you to create, retrieve, and mark tasks as complete, as shown in the following image. Ndlovu In my article, Warehousing JSON Formatted Data in SQL Server 2016 , we had a look at available T-SQL options for converting JSON data into rows and columns for the purposes of populating a SQL Server based data warehouse. Azure Cosmos DB is a globally distributed multi-model database. Another case would be, convert the Java object to json and add the json to mongoDB as shown below. Altering JSON Tables with the MapR-DB OJAI Java API Library. In this JSON tutorial, we will see quick examples to write JSON file with JSON. For this purpose Gson provides several built in serializers and deserializers. Besides the regular columnar data there are 2 JSON fields data as well. ここまででテキスト、csv、xml、jsonデータを取り扱い表示するサンプルを見てきました。次項ではテキストデータを読み込み、該当データが存在するかどうかといった簡単なデータベース検索を行ってみます。. The Java date and time API can be rather confusing when you first try to figure out how to use it. Zuan for Google ads services best google ads company google ads management services google ads management company. Oracle Database provides a family of SODA API's designed to support schemaless application development. If you’ve ever argued with your team about the way your JSON responses should be formatted, JSON:API can be your anti-bikeshedding tool. Connection; import java. We've brought the details up-to-date with the latest MariaDB releases. Home Managed File Transfer Learn More Guides and Tutorials How to Read JSON Data and Insert it into a Database How to Read JSON Data and Insert it into a Database. Here's an example on how you can convert json to java object. Location and Ticket are JSON Object(s), while Event and Participant are JPA entities. JSON stands for JavaScript Object Notation, and it is based on a subset of JavaScript. So, in order to create a JSON, the first thing we will need is an. It's the de facto standard for document exchange. Java has been generating a lot of excitment because of its unique ability to run the same program on IBM, Mac, and Unix computers. We've covered a neat trick that leverages Google spreadsheet as a JSON back-end service API for developers who are making any REST applications. NET Framework, and Java Database Connectivity (JDBC). It will also clean up your JSON and show a data viewer to assist you while you are developing. SQL, text/CSV, JSON, XML output. The native JSON data type allows you to store JSON documents more efficiently than the JSON text format in the previous versions. Folks who've worked with me know I'm not always a fan of having data-model classes - in a lot of modern web applications you're just taking data from a database, turning it into java objects and turning those into JSON, and applying an access control rule or two - which means the data model is logic-free, so creating it is a waste of time and. And, there’s no need to bolt on a search engine because MarkLogic’s database includes built-in search. The documents stored in the database can have varying sets of fields, with different types for each field. But created very simple Java program which read JSON data from file and sends it to REST service. What Is JSON and Why Use It?. Convert JSON to and from XML. Some key advantages include: Derby has a small footprint -- about 3. Implementation approach: Call esProc program using Java and input the JSON strings which will then be parsed by esProc, perform the conditional filtering and return the result in JSON format to Java. If you used a database then adding an additional field is relatively simple and only your code to generate the JSON would need to be modified in a single place thus giving you all new JSON with the new field. These libraries can be used in any Java/J2EE project including Servlet, Struts, JSF, JSP etc and JSON data can be created. Recently I have to pass JSON data to REST Service and did not have any simple Client handy. Apache Tomcat is an open source Java Servlet Container developed by the Apache Software Foundation (ASF). Welcome - [Narrator] One of the most useful Java EE specifications is JSON Processing, with it's fluent APIs and two programming models, it is one of the simplest ways to generate, stream, query. Home Managed File Transfer Learn More Guides and Tutorials How to Query a Database and Write the Data to JSON How to Query a Database and Write the Data to JSON. A JSON object contains data in the form of key/value pair. Before you start with encoding and decoding JSON using Java, you need to install any of the JSON modules available. In Craig's tutorial, he examines whether it's workable or witchcraft. I had some spare time, so I tried my own JSON generator, build around 3 nested Oracle types, on the examples he used. VelocityDB is an easy to use, extremely high performance, scalable, embeddable and distributable object database system with indexes for C#. With Firebase Realtime Database on the Blaze pricing plan, you can support your app's data needs at scale by splitting your data across multiple database instances in the same Firebase project. To connect to MySQL database from Android device/emulator I am sending an HTTP request to a Servlet from the application which will be process via JSON. Let's begin with creating database. Added a new tool JSON Validator to validate and format JSON. the JSON file data will be like below things. 10 category Programming Reference featnum B035-1150-161K. In this tutorial, you use the AWS SDK for Java to write simple programs to perform the following Amazon DynamoDB operations: Create a table called Movies and load sample data in JSON format. Unlike the once popular XML, JSON. Dump data from sqlite databases to JSON files easily. {"widget": { "debug": "on", "window": { "title": "Sample Konfabulator Widget", "name": "main_window", "width": 500, "height": 500 }, "image": { "src": "Images/Sun. Although Oracle Database is an object-relational database, it does support JSON (and XML). Step 1 : Select File -> New -> Project -> Android Application Project (or) Android Project. In Java development, you will often need to read in JSON data, or provide JSON data as an output. ly/2pQuyFq In this tutorial, we are going to look at how to read JSON data in a Spring Boot application and write. The JSON object contains methods for parsing JavaScript Object Notation and converting values to JSON. As described above, a JSON is a string whose format very much resembles JavaScript object literal format. Welcome - [Narrator] One of the most useful Java EE specifications is JSON Processing, with it's fluent APIs and two programming models, it is one of the simplest ways to generate, stream, query. Java Edition launcher. After some blogging silence due to project work and holidays, I thought it was a good idea to do a write-up about a problem I faced this week. In plain Java however you won't be able to use some of the advanced monitoring tools of the SOA Suite. We have a huge collection of quotes in our database. I'm neither a Java nor an Oracle guru, but in my opinion it would be long work to write a full JSON library with PL/SQL able to support import and export of a JSON String; therefore, I choose to use Java Stored Procedures instead. JSON grew out of a need for stateless, real-time server-to-browser communication protocol without using browser plugins such as Flash or Java applets, the dominant methods used in the early 2000s. JSON is considered as a subset of JavaScript but that does not mean that JSON cannot be used with other languages. Java Edition has its own launcher. Since we stored there our user_id, we can query our database for our user if we need to. Enterprise-class JDBC Connectivity. Perform create, read, update, and delete operations on the table. JSON Utils is a site for generating C#, VB. A big difference between the JSON support in MySQL, Postgres, and MongoDB is that in MongoDB, this is the native transport across the wire as well. There are many better JSON libraries out there, but most do much more than we need. Welcome - [Narrator] One of the most useful Java EE specifications is JSON Processing, with it's fluent APIs and two programming models, it is one of the simplest ways to generate, stream, query. When you add data to the JSON tree, it becomes a node in the existing JSON structure with an associated key. Spring MVC RESTful Web Service Spring is today's leading framework for building Java, Enterprise Edition (Java EE) applications. Connecting to a MySQL Database from Codename One Part 2: Pure Java Learn how to set up a RESTful Java-based web service and use it in your Codename One. Flexible schema for continuous delivery; Fully featured SQL for JSON database. Teradata Database 15 is said to fill out the. json parser, which is reasonably small but not famous for its performance. Java object can be saved in any database after serialization of objects. I've included some sample code and the error below. js bindings. 2) This article describes the server side support for JSON in Oracle Database 12c Release 1 (12. Switch to a MongoDB database- Here, our database is "dineshonjavaDB". Why Use JSON. PouchDB is an open-source JavaScript database inspired by Apache CouchDB that is designed to run well within the browser. UnQLite is a document store database similar to MongoDB, Redis, CouchDB etc. Java API for JSON Processing: An Introduction to JSON. JSON (JavaScript Object Notation) is a lightweight. You can access JSON data stored in the database the same way you access other database data, including using Oracle Call Interface (OCI), Microsoft. And our best Quotes API gives easy way to access the data. For example, when I define a JSON property in my schema of type string, if I also attach the rule "format" : "uri" to that property (because my string is actually a URI) then my corresponding Java property will now have the type java. parse method to parse a string query. In this JSON tutorial, we will see quick examples to write JSON file with JSON. JSON messages can be smaller then XML messages and a strict message or interface definition (such as for XML XSD/WSDL) is not a requirement. How to work with JSON fields using the Eloquent ORM in Laravel. JSON objects are easy to read and write and most of the technologies provide support for JSON objects. To parse the Nested Object, we need to create the object of parent object first. Download JAR file json-rpc-1. Switch to a MongoDB database- Here, our database is "dineshonjavaDB". The previous example does not work as shown if the NO_BACKSLASH_ESCAPES server SQL mode is enabled. Previous entries in this blog have shown how you can store and query existing JSON data. JSON is a text format that is completely language independent but uses conventions that are familiar to programmers of the C-family of languages, including C, C++, C#, Java, JavaScript, Perl, Python, and many others. We've brought the details up-to-date with the latest MariaDB releases. The operator ->> returns JSON object field by text. As Oracle does not provide any out of box functionality or adapters to connect with mongoDB, so I am using the mongodb java drivers library to access the Mongo database in SOA using Java embedding activity.