Question: What Is Return Type Of Execute () Method In Struts2?

Which design pattern is used in struts2?

What design patterns are used in Struts.

Struts is based on model 2 MVC (Model-View-Controller) architecture.

Struts controller uses the command design pattern and the action classes use the adapter design pattern.

The process() method of the RequestProcessor uses the template method design pattern..

Which type of dependency injection is supported by struts2?

Native Dependency InjectionStruts2 provides support for Dependency injection. You may use DI containers like “Spring” in your Struts2 application, or may use Native Dependency Injection available in Struts2 (XWork2) framework. It’s based on Google’s “guice” (both being made by same person).

What is return type of execute () method?

Since this is a SELECT statement, the execute( ) method returns a boolean true to indicate that a result set is available. You can then call the Statement object’s getResultSet( ) method to retrieve the ResultSet object that contains the data from the database.

Which is default result type in struts2?

dispatcher result typeThe dispatcher result type is the default type, and is used if no other result type is specified. It’s used to forward to a servlet, JSP, HTML page, and so on, on the server.

What is the role of action class in struts?

Action Class in Struts framework defines the business logic. An action class handles the client request and prepares the response. It also decides where the response should be forwarded.

What is the return type of executeUpdate?

The JDBC standard states that the executeUpdate method returns a row count or 0. … For an SQL statement that can have an update count, such as an INSERT, UPDATE, DELETE, or MERGE statement, the returned value is the number of affected rows.

What is an action class?

Actions class is an ability provided by Selenium for handling keyboard and mouse events. In Selenium WebDriver, handling these events includes operations such as drag and drop, clicking on multiple elements with the control key, among others. These operations are performed using the advanced user interactions API.

Which of the following is correct about dispatcher result type?

Explanation. The dispatcher result type is the default type and is used if no other result type is specified. Q 20 – Which of the following is correct about dispatcher result type? A – It is used to forward to a servlet, JSP, HTML page, and so on, on the server.

Which type of statement can execute parameterized queries?

Prepared Statement The PreparedStatement interface extends the Statement interface. It represents a precompiled SQL statement which can be executed multiple times. This accepts parameterized SQL quires and you can pass 0 or more parameters to this query.

What is strut action?

Actions are the core of the Struts2 framework, as they are for any MVC (Model View Controller) framework. Each URL is mapped to a specific action, which provides the processing logic which is necessary to service the request from the user.

What is the role of action class?

An Action is an adapter between the contents of an incoming HTTP request and the corresponding business logic that should be executed to process it. Actions are usually thin classes with most of the business logic being performed in a separate JavaBean or EJB. …

Which of the following feature is present in struts2?

The important features of struts 2 framework are as follows: Configurable MVC components. POJO based actions. AJAX support.