Creating an EO

Creating an EO:-

• To create an EO right click on the Model project -> New -> Select Entity Object (Under ADF Business Components under Business Tier Category) -> Click on OK.

• Select the connection created by you and click on OK. 

• On clicking OK an Entity creation wizard will be opened, which will help you to create the EO or Entity Object. 
• Give the package name as “model.entity” (Why? You can refer to the ADF Business component naming standard).
• Name as EmployeeEO (as we are going to create an Entity Object based on Employees table present in HR schema). 
• Under Schema Object, click on browse to select the EMPLOYEES table.

• Select the EMPLOYEES from the available objects and click on OK. You can also create the EO based on Views, Synonyms and Materialized Views. 
• Then click on Next, to go to the step 2 of the Entity Creation wizard.

 

• Select the EMPLOYEES from the available objects and click on OK. You can also create the EO based on Views, Synonyms and Materialized Views.
• Then click on Next, to go to the step 2 of the Entity Creation wizard. 

• Step 2 of the wizard shows all the attributes that you are going to add to the entity object. 
• You can add a new attribute to the entity which is known as transient attribute based on your requirement.

 

• In step 3 of the wizard you can change the attribute type, default values and lot more. Keep this settings as it is, we will discuss it later.

 

• In step 4 of the wizard you can generate various java classes for entity objects. For now we are less bother about it, so keep the fields as it is

• Step 5 of the wizard allows you to create View object and Application module directly. We can do this by checking the Generate Default View Object check box and Add to Application Module check box, But for a beginner you should know how to create a View object and Application Module, so don’t check the check boxes.

• Step 6 is a summary of entity object you are going to create. Just review it and click on Finish to complete the entity creation wizard.

• You have created your first entity object, named as EmployeeEO. You can see it under Model project present in Application Navigator palette as shown.

• It automatically creates an association as it has relation with manger id with the same table.