Scope Of Spring Bean

so lets start with the scope of bean . ……

Bean scopes refers to the lifecycle of bean it means when the object of Bean will be instantiated,how long does that object live,and how many objects will be created .

In simple word scope just like boundary for the bean.

In Spring Framework five scopes are present for a bean. And we can use three of them only in context of web-aware Spring ApplicationContext. And rest of two availabe for both IOC conatiner and MVC container.

1. Singleton: when we declare scope singleton it means only one object will be created for a single bean and the same object will be shared for each request made for that bean.
2. Prototype: when we declare scope prototype so for a single bean every time a new object will be created at every time a request is made for that bean.
3. Request: when we declare scope Request for a single bean every time a new object will be created at every time a Http request is made for that bean.Only valid for ApplicationContext.
4. Session: when we declare scope Session it means a single bean definition to the lifecycle of a Http Session .Only valid for ApplicationContext.
5. Global-Session:when we declare scope Session it means a single bean definition to the lifecycle of a global Http Session .Only valid for ApplicationContext.

lets take a example of singleton scope:

this is simple java bean class

HelloWord.java

this is the main class where we call object

client.java

this is the Xml file where bean is created

Application2.xml

Output:

I hope it will be helpful…

Thank You

Sneha Tiwari