Skip to main content

Spring - Bean Scopes

What is spring Bean scopes ?

it is just an interview question which i have faced!!! A simple one.... Any way i couldn't answer it . 

For the sake of next interview i am going to answer it in here:

When defining a <bean> in Spring, you have the option of declaring a scope for that bean. For example, To force Spring to produce a new bean instance each time one is needed, you should declare the bean's scope attribute to be prototype. Similar way if you want Spring to return the same bean instance each time one is needed, you should declare the bean's scope attribute to be singleton.
The Spring Framework supports following five scopes, three of which are available only if you use a web-aware ApplicationContext.

ScopeDescription
singletonThis scopes the bean definition to a single instance per Spring IoC container (default).
prototypeThis scopes a single bean definition to have any number of object instances.
requestThis scopes a bean definition to an HTTP request. Only valid in the context of a web-aware Spring ApplicationContext.
sessionThis scopes a bean definition to an HTTP session. Only valid in the context of a web-aware Spring ApplicationContext.
global-sessionThis scopes a bean definition to a global HTTP session. Only valid in the context of a web-aware Spring ApplicationContext.
Labels:

Comments

  1. Anonymous30 June 2017 at 05:08


    Really Good blog post.provided a helpful information about bean scopes .keep updating...
    Digital marketing company in Chennai

    ReplyDelete
  2. Sowmiya1 August 2017 at 22:00

    Interesting blog about spring bean scopes which attracted me more.Spend a worthful time.keep updating more.
    MSBI Training in Chennai

    ReplyDelete
  3. Anonymous15 September 2017 at 23:45

    Interesting blog post.This blog shows that you have a great future as a content writer.waiting for more updates...

    Vmware Training in Chennai

    Web Designing Training in Chennai

    AWS Training in Chennai

    Linux Training in Chennai

    Microsoft Azure Training in Chennai

    ReplyDelete
  4. Raghu25 October 2017 at 00:22

    This information is impressive; I am inspired with your post writing style & how continuously you describe this topic.

    Eczema Treatment

    ReplyDelete
  5. dazzling8 November 2017 at 03:50

    I must thank you for the efforts you have put in spending this site. I am hoping to out the same high-grade content by you later on as well. In truth, your creative writing abilities has inspired me to get my own, personal blog now..
    Java Training in Chennai
    Dot Net Training in Chennai
    Cloud Computing Training in Chennai
    Digital Marketing Training in Chennai
    SAS Training in Chennai
    SEO Training in Chennai
    AWS Training in Chennai
    Microsoft Azure Training in Chennai



    ReplyDelete

Post a Comment

Popular posts from this blog

JSP page directives

A jsp page directive looks like this: <%@ directive attribute="value" %> I am not gonna explain each and every page directives here . I would like to discuss about two page directives  which is import and include. First of all consider the import directive . The following simple program illustrate the use of import page directive: The output would be something looks like this: <%@ page language="java" contentType="text/html; charset=UTF-8"     pageEncoding="UTF-8"%>  <%@ page import="java.util.Date" %>   //page directive <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Jsp Basics</title> </head> <body> <%=new Date() %> </body> </html> Tue Nov 12 17:42:34 I...
1 comment
Read more

a simple example for jdbc PreparedStatement

a simple example for PreparedStatement package basics.in.java.blogspot.in; import java.sql.Connection; import java.sql.DriverManager; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.SQLException; import java.sql.Statement; public class Main { private static final String USERNAME="root"; private static final String PASSWORD=""; private static final String CONN_STRING="jdbc:mysql://localhost/basicsinjavablogspot"; public static void main(String[] args) throws ClassNotFoundException, SQLException { Class.forName("com.mysql.jdbc.Driver"); Connection conn=null; Statement stmt=null; ResultSet rs=null; try { conn= DriverManager.getConnection(CONN_STRING, USERNAME, PASSWORD); System.out.println("database connection successful"); //stmt=conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_READ_ONLY); String sql="select * fr...
1 comment
Read more