Oracle ADF, also known as Oracle Application Development Framework, is one of Oracle's key products. It offers declarative and visual approaches for building enterprise-level apps. With its extensive features and functionality, ADF has taken the IT industry by storm. As more businesses migrate to Oracle ADF, the opportunities for talented minds in this field are rising.
Through the medium of this Oracle ADF Tutorial, we'll go over all you need to know about Oracle ADF.
Here’s what you’ll learn in this Oracle ADF Tutorial:
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Before going directly into advanced concepts of Oracle ADF, let’s first understand what Oracle ADF is.
Oracle Application Development Framework (ADF) is an end-to-end application framework that leverages Java EE standards and open-source technologies to simplify and accelerate the development of enterprise applications. It's the ideal choice for developers who want to build applications that search, create, display, modify, and validate data utilizing the web, mobile, and desktop interfaces.
It is simple since users can use Oracle ADF to build an application entirely or utilize pieces of it in conjunction with other technologies. It is very adaptable, and it allows developers to create apps more quickly. It provides users with out-of-the-box infrastructure services and a visual and declarative application development environment.
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The Oracle ADF Model is a declarative data binding technology that allows for a consistent way to bind user interfaces to business services without coding. Data controls and declarative ADF bindings are two technologies that enable the decoupling of user interface technology from business service implementation in the ADF Model.
You must first construct a data controller for your services before using the ADF Model layer to bind data. The data controller will then display in the Data Controls panel a tree structure, with each subnode representing an element such as a collection, operation, method, or attribute. To construct data-bound parts, you drag and drop the subnodes into the visual editor for a web page or another user interface component.
Oracle ADF follows the Model-View-Controller (MVC) design pattern. In Oracle ADF's MVC implementation, there are four layers:
ADF Business Components is a technology that allows developers to design reusable data-aware business services quickly. Without writing any Java code, developers can create ADF Business Components services using wizards and visual editors. It's also feasible to add advanced functionality to the core ADF Business Components classes.
ADF Business Components services are made available to the application's display layer via ADF Model.
ADF Controller is a JavaServer Faces-based advanced navigation and state management mechanism. It allows you to express page flows in a declarative manner. A task flow can contain page flows, allowing them to reuse. Task flows represent the control flow rules that specify the transitions between the activities. This workflow notion is not provided by JSF navigation alone.
The ADF Controller also allows you to call methods on managed beans or Java objects that aren't managed beans, in addition to navigation. Validation, state management, security, and declarative transaction control are among the features it supports.
Oracle ADF Faces, a framework that includes over 150 Ajax-enabled JavaServer Faces (JSF) components, is based on the JSF 2.0 standard. ADF Faces was the first-generation set of JSF components handed to the Apache Software Foundation after it was developed. That set is now known as Apache MyFaces Trinidad (directly accessible from the Apache Software Foundation), and it is the basis for today's ADF Faces.
With ADF Faces and JSF 2.0, you can quickly create Ajax-based apps with little hand-coding. You may soon make a stock trader's dashboard app that allows a stock analyst to drag & drop new stock symbols into a table display, which is subsequently updated by the server model using powerful push technology.
Developers can use ADF Desktop Integration to extend the capability of Fusion web apps to desktop applications.
Many users of Fusion web applications utilize desktop apps to manage information used by their web application, such as Microsoft Excel. It enables business users to utilize Oracle ADF functionality even if not connected to their company network.
Business users may also prefer ADF Desktop Integration for using Excel's familiar user interface to accomplish information management tasks like performing complex computations or uploading large amounts of data quickly and easily.
The Oracle ADF architecture includes ADF Desktop Integration. The following diagram depicts the architecture of ADF Desktop Integration.
Oracle ADF is used to create components for larger middleware applications. Oracle JDeveloper, an integrated development environment (IDE) with design-time support for ADF capabilities, is used to create ADF applications. JDeveloper provides complete testing and debugging settings and wizards to build functioning code for your business services. It also generates data binding code as you graphically design your user interfaces.
The Oracle Application Development Framework (Oracle ADF) includes the ADF Security framework to simplify robust application security. The Oracle Platform Security Services (OPSS) architecture, including the Java Authentication and Authorization Service (JAAS) and Java EE container-managed security, is the foundation for ADF Security.
Developers can customize Oracle Fusion Applications using JDeveloper using the customization options given by Oracle Metadata Services (MDS), making changes to meet the needs of a particular group, such as a specific country or site.
You can use JDeveloper to alter existing artifacts, which are then stored in a metadata repository and retrieved at runtime to reveal the customized application. You can also add custom artifacts to your application by packaging them in a JAR file and integrating them with current customizations.
Note that Oracle Fusion CRM Application Composer, which allows you to edit existing objects and expand an application with new things for the following CRM apps, can be used to do many types of customizations in the runtime environment:
However, some adaptations (including all customizations to programs not specified above) necessitate a lower-level method, for which JDeveloper is a must.
Through the instructions below, you can deploy your application to a standalone server once developed. Running the application in Integrated WebLogic Server via JDeveloper is not included in these procedures.
To install the platform-agnostic installer on your Windows system, follow these steps:
Create an application workspace and populate it with the business services you wish to use for data management.
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In this post, let’s use ADF Business Components to develop an ADF Fusion Web application.
As shown in the diagram, an ADF application comprises two projects, which can alternatively be thought of as two modules (Model and ViewController).
1. (Select File/New/From Gallery) in JDeveloper.
2. Select "ADF Fusion Web Application":
3. The JDeveloper will then build a Model Project with the default name of "Model." If you like, you can call it something else. The Project uses the following technologies:
4. JDeveloper will then create the ViewController Project. "ViewController" is its default name. If you like, you can call it something else. The following technologies were utilized in this project:
5. Your software has now been created.
Oracle ADF makes Java EE development easier by implementing design patterns and infrastructure code out of the box. ADF gives you the option of using a different development style, different technology, and a different deployment platform. We hope this Oracle ADF tutorial covered some valuable information to help you get started.
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Madhuri is a Senior Content Creator at MindMajix. She has written about a range of different topics on various technologies, which include, Splunk, Tensorflow, Selenium, and CEH. She spends most of her time researching on technology, and startups. Connect with her via LinkedIn and Twitter .
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