Hello. In this video I will move to the second features in some other layer, which is shared list of values, what is shared list of values? We will create all these values or whatever lists whatever you want in a separate application. And this value will be shared between all users. What does it mean? It means that this list of values will be initiated only once in the application lifetime.

So, once the first one says our first user is logged into the application and opens a bitch, and if this page has a lot of list of values, the first user as the first time will initiate all this list of values by invoking the database execute the old query for each query. So values So only once but in other user once he opens a page, a new database will not be invoked and list of value will be automatically generated. The benefit of doing that is to increase the performance, especially if the page has a lot of list of values. So imagine your page for example has 10 lists of values. And each list of value has a query behind it. So once the use of login to the page application opens a page, each list of value will hit the database and execute the query behind each value.

So it means there are 10 queries will be executed once the user opens a page. If the second user is opens the same page it will is a execute a query 10 times as well and so on. But if you create shared these two values in application level It means this this value will just only initialize at one time. And after that once the user opens a page, that is a value will not evict the database and it will execute automatic. But it means this this value will not be sync with the database unless you stop the application and run it again. So that this list of value will become the new data.

So the shirtless value actually is application living should be the data, which is rarely make changes, like for example, supplier list or whatever product list which is really changing, or you need just to refresh the value only once in a day. So you can create your list of value and every day you just restart your application stop unsorted. Okay, so how we can create this shared list of values. There are some steps you have to follow. First I would create a custom application was one model project. I will create the old view objects which will be used for list of value as you know each list of value should be a view object behind it or a query behind this list of value to get that data.

So, we will create an old view object which will be used for list of values. Then we will define the data source in application modules, where exactly is this view object, we'll get the data. So, we will define the data source then, we will create application module instance forms a project properties. So, I will show you how you can go to the project properties and garita application module instance. After that you will generate if library JAR file and use this jar file in the module project in your main EDF application. So, this is the six steps we will follow to create a shared list of it So Nick Acevedo, we will go step by step and implement this shared list of value.

So see you next activity