Software Automation
with Eclipse Modeling
Peter Friese, itemis
@peterfriese
@xtext
(c) 2009 Peter Friese. Distributed under the EDL V1.0 - http://www.eclipse.org/org/documents/edl-v10.php
More info: http://www.peterfriese.de / http://www.itemis.com

Some Typical Situations
in
Software Development

Boring code

Accidental complexity

Wrong level of abstraction

Anatomy of Modern Software
Software artifact

Anatomy of Modern Software
manually written code Frameworks
Libraries

Anatomy of Modern Software
manually written
code
Frameworks
schematic code (manually written)
Libraries

The Result?

More and more code to write

More and more code to write

More and more code to write

Problems

Problems

Problems
Can we solve them with models?

Yes, we can!

Code Generation Helps
Model
manually written
code
Generator
Frameworks
schematic code (generated)
Libraries

MDSD
Metamodel
<<instanceof>>
generated manually written
Model Model
code code
Generator
Platform

MDSD with UML
Metamodel
<<instanceof>>
generated manually written
Model Model
code code
Generator
UML Platform

Demo

@SuppressWarnings("serial")
@Entity
@Table(name = "CUSTOMER_INFO")
public class CustomerInfo implements Serializable {
@Id
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "idSeq")
@SequenceGenerator(name = "idSeq", sequenceName = "CUST_SEQ", allocationSize = 1)
@Column(name = "CUST_ID", nullable = false)
private String customerId;
public void setCustomerId(String customerId) {
this.customerId = customerId;
}
public String getCustomerId() {
return customerId;
}
@Column(name = "EMAIL", nullable = false, length = 128)
private String emailAddress;
public String getEmailAddress() {
return emailAddress;
}
public void setEmailAddress(String emailAddress) {
String oldValue = emailAddress;
this.emailAddress = emailAddress;
firePropertyChangedEvent("emailAddress", oldValue, this.emailAddress);
}

@SuppressWarnings("serial")
@Entity
@Table(name = "CUSTOMER_INFO")
public class CustomerInfo implements Serializable {
@Id
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "idSeq")
@SequenceGenerator(name = "idSeq", sequenceName = "CUST_SEQ", allocationSize = 1)
@Column(name = "CUST_ID", nullable = false)
private String customerId;
public void setCustomerId(String customerId) {
this.customerId = customerId;
}
public String getCustomerId() {
return customerId;
}
@Column(name = "EMAIL", nullable = false, length = 128)
private String emailAddress;
public String getEmailAddress() {
return emailAddress;
}
public void setEmailAddress(String emailAddress) {
String oldValue = emailAddress;
this.emailAddress = emailAddress;
firePropertyChangedEvent("emailAddress", oldValue, this.emailAddress);
}

entity CustomerInfo
(id=CUST_ID, sequenceName=CUST_SEQ)
{
String emailAddress (notNull, length = 128)
}

entity CustomerInfo
(id=CUST_ID, sequenceName=CUST_SEQ)
{
String emailAddress (notNull, length = 128)
}
Bean
DAO
(POJO)

∑

Concentrate on
Essentials

Higher Efficiency

Better Maintainability
http://www.flickr.com/photos/flyforfun/2638180406/

No More Boring Code

Some
Users

Deutsche Börse
Systems AG

Deutsche Börse
Systems AG

APG Affichage

APG Affichage

Fraunhofer IWES

Fraunhofer IWES

BMW Car IT

BMW Car IT

Twitter: @xtext
http://www.xtext.org