Adf Interview Questions And Answers PdfBy Erin G. In and pdf 22.03.2021 at 11:47 10 min read
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Oracle Products. All the best for your interview Preparation. What is Oracle ADF?
- Top 25+ ADF Interview Questions & Answers [ ORACLE TRICKS ]
- Oracle ADF Interview Questions and Answers
- Oracle ADF Interview Questions
- 40 [UPDATED] ORACLE ADF Interview Questions and Answers pdf for Experienced Freshers
Top 25+ ADF Interview Questions & Answers [ ORACLE TRICKS ]
Oracle Products. All the best for your interview Preparation. What is Oracle ADF? The Oracle Application Development Framework Oracle ADF is an end-to-end application framework that builds on J2EE standards and open-source technologies to simplify and accelerate implementing service-oriented applications. If you develop enterprise solutions that search, display, create, modify, and validate data using web, wireless, desktop, or web services interfaces, Oracle ADF can simplify your job. Used in tandem, Oracle JDeveloper 10g and Oracle ADF give you an environment that covers the full development lifecycle from design to deployment, with drag-and-drop data binding, visual UI design, and team development features built-in.
Why ADF? Oracle ADF is state of the art technology to rapidly build enterprise application. ADF Application Development Framework provides variety of inbuilt components that minimizes the need to write code allowing users to focus more on features and business aspects of the application.
What are the advantages of using ADF? Following are the advantages of using:. Explain about ADF lifecycle? ADF Lifecycle has Nine phases as follows:. Initialize Context : In this phase value of associated request, binding container and lifecycle are set. Prepare Model : In this phase model is prepared and initialized. In this phase page parameters are set and methods in the executable section of the page definition of the ADF page are executed. Apply Input Values : This phase handles the request parameters.
A list of events is build using these request parameters. These are actually mapped to the bindings in the pageDef. This phase resolves the list of request parameters bind to attributes in the page def. This results into a list of updated Values which is used in Update Model phase. Validate Input Values: This phase validates the list of values built in the Apply input values field with model.
Update Model : After validation of input values data model is updated with the list of values created in apply input values phase. Process Component Updates : This phase handles any events in the list built during the apply input values phase. Metadata Commit: This phase commits the runtime metadata changes to the model.
This phase is always executed before prepare render phase. Prepare Render: This is the final phase where page is sent for rendering. This notification signals bindings to prepare or process the data for rendering. Binding container is also refreshed. This helps in updating any changes that happened during validation phases. What is partial page rendering? It is used to dynamically refresh the part of page. It is done with the use of partial triggers.
For a component to trigger another component to refresh, the trigger component must cause a submit when an appropriate action takes place. Following three main component attributes are used to enable partial page rendering:.
Use this attribute to list the IDs of components whose change events are to trigger this component to be refreshed.
What is a phase listener? The Oracle ADF lifecycle integrates with the Java Server Faces request lifecycle, adding all that it takes to set up the binding context, prepare the binding container, validate and update the ADF model, persist MDS changes and prepare the response. Developers who need to listen and interact with the request cycle may use an ADF Phase Listener to do so.
Unlike the Phase Listener you define in the faces-config. Listeners can be used to customize the ADF Lifcycle. What are validators and convertors in ADF? In the real world, of course creating the custom JSF validator classes would be adopted for ADF application for better reuse and maintantence. Difference between backing beans and managed beans? Backing beans are JavaBeans components associated with UI components used in a page. Backing-bean management separates the definition of UI component objects from objects that perform application-specific processing and hold data.
There is nothing special in a Backing Bean that makes it different from any other managed bean apart from its usage. What makes a Backing Bean is the relationship it has with a JSF page; it acts as a place to put component references and Event code. Backing Beans : A backing bean is any bean that is referenced by a form.
Backing Beans should be defined only in the request scope. The advantage of managed beans is that the JSF framework will automatically create these beans, optionally initialize them with parameters you specify in faces-config. In addition, ADFc provides declarative transaction handling and clearly defined process boundaries. ADFm is built on JSR and abstracts the view layer model access from the implementation details of the underlying business service. What are taskflows?
ADF task flows provide a modular approach for defining control flow in an application. Instead of representing an application as a single large JSF page flow, you can break it up into a collection of reusable task flows.
The nodes in the task flows are activities. An activity node represents a simple logical operation such as displaying a page, executing application logic, or calling another task flow. The transactions between the activities are called control flow cases. Taskflows are of two categories: Bounded and UnBounded. What is the difference between Bounded and UnBounded taskflows?
Differences between Bounded and UnBounded taskflows:. Entity object: An entity object represents a row in a database table. It simplifies modifying table row data by handling all data manipulation language DML operations for you.
It can encapsulate business logic for the row and all DML goes via entity object so you can ensure that your business rules are consistently enforced. You associate an entity object with another entity object to reflect relationships in the underlying database schema.
The relationship between two EOs is called Entity Association. View object: A view object represents a SQL query. You use the full power of the familiar SQL language to join, filter, sort, and aggregate data into exactly the shape required by the end-user task. When end users modify data in the user interface, your view objects delegate the work to entity objects to consistently validate and save the changes.
You can create view level relationships between different view objects and it is called as View Link. View Links are useful when you have master-child hierarchies and you want to reflect that in the data visible to your client. Application module: An application module is the transactional component that clients use to work with application data.
It defines an updatable data model and top-level procedures and functions called service methods related to a logical unit of work related to an end-user task. What are data controls? A data control is essentially a bridge that makes data from a source available to the user interface in an ADF Fusion Web Application.
You can use the objects in the data control to create databound user interface components. The most commonly used types of data controls include the following:. This type of data control is not updateable. You can create a Web Service data control from the New Gallery. As the name implies, it is a placeholder that can be used during UI development, and then replaced with the real data control when it becomes available.
What is the difference between databindings. The DataBindings. The DataControls. It identifies the Oracle ADF model layer data control classes factory classes that facilitate the interaction between the client and the available business service.
What is the difference between trinidad. This is used to register the skin-family you are going to use for your entire application. This file provides a mapping between the Skin Id and the actual path where the skin exists.
What is binding context and binding container? Binding context is a runtime map between the data controls and page definition of pages in the application which is used to access the binding layer. It is accessible through the EL expression in your jspx pages. Binding container is a request-scoped map that is used to instantiate the page bindings.
This is accessible through the EL expressions. Also, since it is request-scoped map, it is accessible during every page request.
What are the different types of bindings in adf? ADF contains the following types of bindings:. Tree Bindings: This is used for tables, tree-tables and trees. Action Bindings: This binding type is used when buttons or command links are dropped on the user interface and require an action to be performed on them. Method Bindings: This binding is used when you want to use custom methods to be executed.
Oracle ADF Interview Questions and Answers
There are a lot of opportunities from many reputed companies in the world. According to research, Oracle ADF has a market share of about 1. Ans: An action listener is a class that wants to be notified when a command component fires an action event. An action listener contains an action listener method that processes the action event object passed to it by the command component. The key ADF Business Components that cooperate to provide the business service implementation are: 1.
Oracle ADF Interview Questions and Answers: · Q1) What is Action Listener? · Q2) What are ADF BC(Business Components)? · Q3) Which component in ADF BC.
Oracle ADF Interview Questions
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If you develop enterprise solutions that search, display, create, modify, and validate data using web,wireless, desktop, or web services interfaces, Oracle ADF can simplify your job. Oracle ADF is an Oracle product. Most of the feature are just drag and drop. In all there file you can define navigation between the pages.
40 [UPDATED] ORACLE ADF Interview Questions and Answers pdf for Experienced Freshers
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The interview is the process to check how smartly you stand out. It may be the job role that has a scarcity of cadets or has ample cadets to choose from, your selection is still based on your knowledge and skills. Seeing the vast usability of the Oracle platform, ADF Application Development Framework job roles are much in these days and in the coming future. Here Mindmajix team compiled a few very common ADF interview questions that should be thoroughly prepared for:. Ans: The Oracle Application Development Framework Oracle ADF is an end-to-end application framework that builds on J2EE standards and open-source technologies to simplify and accelerate implementing service-oriented applications.
Oracle ADF Interview Questions
What is Oracle ADF? It is one of the most comprehensive and advanced framework in market for J2EE Q. What are the advantages of using ADF? Ans: Following are the advantages of using:. What are various components in ADF? Ans: Oracle ADF has following components. What is the return type of Service Methods?
The Oracle Application Development Framework Oracle ADF is an end-to-end application framework that builds on J2EE standards and open-source technologies to simplify and accelerate implementing service-oriented applications. If you develop enterprise solutions that search, display, create, modify, and validate data using web,wireless, desktop, or web services interfaces, Oracle ADF can simplify your job. Used in tandem, Oracle JDeveloper 10g and Oracle ADF give you an environment that covers the full development lifecycle from design to deployment, with drag-and-drop data binding, visual UI design, and team development features built-in. No entity objects will always have one to one relationship with a database object or web service. We should be writing validations at Entity Object level, because they provide highest degree of reuse.
Are you looking for Oracle ADF jobs? Then we in Wisdomjobs collectively provided a detail amount of basics of Oracle and in-depth details about oracle ADF Interview Questions and Answers along with the various job roles. To clear any interview, one must work hard to clear it in first attempt. So simply to save your time we have provided all the necessary details about Oracle ADF at one place. Not only these there are so many other roles to get more details visit our site www. Answer : Oracle ADF is state of the art technology to rapidly build enterprise application. ADF Application Development Framework provides variety of inbuilt components that minimizes the need to write code allowing users to focus more on features and business aspects of the application.
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