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• Mohammed Almutairi (admin)

[Mohammed Almutairi]

When You run the programe you need to choose file that describe the relation between the enetites.
in this post you will learn how to create this file.

At the first time you must specifiy the output directory you need to generate source on it :

src=C://JPA//Sample

the previous line will tell the tool where to generate the java source code. suppose we have two entities Employee and Project and we want to define relation between them.

Employee :1:m: Project

in the previous line you tell thae tool that the relation is one to many,

if relation many to many then:

Employee Ⓜ️m: Project

if relation is many to one then

Employee Ⓜ️1: Project

and so on

when you run the programe with this tutorials then will generate Employee,java and
Project.java in Sample Directoruy

[Mohammed Almutairi]

in you put more than two entities in one line let us take example:

Employee :1:m: Project Company Employee

in previour line will specify one to many relation for muliple entities

also you can do

'Project Company Employee Ⓜ️1:Employee

also you can specify the package for the entities:

Employee :1:m: Project -> emlpoyee

Employee and Project will be in ecmployee package

You can repaet entity on lines :

Employee :1:m: Project
Branch :1:m: Employee

[Mohammed Almutairi]

use #package

src=c:/JPA/sample

package= domain.model

Employee :1:m: Project -> employee

the two entities will be in domain.model.employee package