Welcome my.
Welcome to this lecture in this lecture about attributes in the previous lectures we had gone through
in bottoms as well as barometer's.
Now we will go through attributes.
Attributes are basically objects as opposed to parameters being string's.
The type of parameter is always adjusting.
The shape of an attribute can be any object that can be read and written, as opposed to parameters
which can only be read in it.
But mean does can be only read, but attributes can be read and write particular also.
And they can also be removed.
They can be in three scopes which are in the next slide.
In the next slate, the three scopes of attributes should be covered.
So attribute scopes, the first scope of an activity, the smallest, the most narrower scope is the
request scope.
OK, and you get this from the request object.
The methods are set out to be able to get that attribute and remove it to do.
You said the act of using the same method.
You get an attribute for using the method and you remove the attribute if you want to believe that OK
from the request object.
So the first scope is the request.
The second scope is the application scope, which again has the same methods so that you get that you're
going to move back to attribute.
And it has got from the public on fixed object from a subject context object.
If you if you get the scope applique, you get an application wide scope for the attributes.
These attributes can be shared between subnets.
So also let's sort of share this attribute within an application.
OK, extracted it will be an attribute only in the scope of that request that has been passed.
Once the response is sent, that object is gone.
It doesn't exist.
Third is the station attribute we just got from the deepest recession object in the history.
To be such an object itself has got from the request object, not the says.
An object exists for that particular time period and it expires after that time period is over.
That means the object doesn't exist, but otherwise there should be an object can exist for amongst
various subjects like like a subject context, like an application scope.
It can exist for for for as much time as it has been predefined opposition.
And they should position in a letter, in the letter section, in a letter, of course, I knew about
this decision.
And for now you should know that these are the three scopes for our tribute request, application and
session.
We will cover this session, particularly in session, handling the will of the state and session and
the different types of ways in which we can stage session, which is you are rewriting.
He didn't field cookies and there should be such an object itself, which is a very common method,
which is the common method of using session state.
So we will understand session in a later course.
OK, so this is what I wanted to tell you about in this lecture.
Thank you.