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Showing posts with label JPA with Eclipse Dali - Tutorial. Show all posts
Showing posts with label JPA with Eclipse Dali - Tutorial. Show all posts

Tuesday, September 7, 2010

Installation

Use the update manager to install from "Web, XML, and Java Development" the "Dali Java Persistence Tools" and "Dali Java Persistence Tools - EclipseLink Support (Optional)". Install also "EclipseLink JPA" from "EclipseRT Target Platform Components". .


Using Dali

2.1. Project

Create a new project "sawan.modi.dali.first" via File -> New -> Others -> JPA -> JPA Project.

Tip

You can also add to an existing project the JPA nature. Use the JPA perspective and the right mouse button on the project and select Configure -> Convert to JPA Project

Click twice next.

The JPA perspective should now be opened.

Create a package "sawan.modi.dali.first".

Select File -> New -> Other -> JPA -> Entity and create the following class.

   
package sawan.modi.dali.first;

import java.io.Serializable;

import javax.persistence.Entity;
import javax.persistence.Id;

/**
* Entity implementation class for Entity: Person
*
*/
@Entity

public class Person implements Serializable {
@Id
private int id;
private String firstName;
private String lastName;

private static final long serialVersionUID = 1L;

public Person() {
super();
}

public int getId() {
return id;
}

public void setId(int id) {
this.id = id;
}

public String getFirstName() {
return firstName;
}

public void setFirstName(String firstName) {
this.firstName = firstName;
}

public String getLastName() {
return lastName;
}

public void setLastName(String lastName) {
this.lastName = lastName;
}

}

Annotate now the class with @Entity (before the class name". This will activate the views "JPA Structure" and "JPA Details".

You can now use the right mouse button in the "JPA Structure" view to map your elements.

Now you can use the "JPA Details" view to define for example how the primatry keys should get defined, e.g. via a sequence "SEQUENCE".

Thank you

Thank you for practicing with this tutorial.

I maintain this tutorial in my private time. If you like the information please help me by using flattr or donating or by recommending this tutorial to other people.