Integrating Code Generation and Refactoring

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Integrating Code Generation and Refactoring
Amorim, Nogueira, Santos, Souza, Paulo Borba

• Qualiti Software Processes and
• Informatics Center, Federal University of
  Pernambuco
• Recife, Brazil

www.qualiti.com.br
www.cin.ufpe.br
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Integrating transformations
public interface IFacade extends java.rmi.Remote
ublic void updateComplaint complaint)
throws TransactionException,
RepositoryException,
ObjectNotFoundException, ObjectNotValidException,
RemoteException . . .

public class Person implements java.io.Serializabl
e private String nome ... public
Person(String nome, ) this.nome
nome public String getNome()
return nome
Code generation (implementation)
public class Person implements java.io.Serializabl
e private String nome ... public
Person(String nome, ) this.nome
nome public String getNome()
return nome
public class Person implements java.io.Serializabl
e private String nome ... public
Person(String nome, ) this.nome
nome private X x new X()
public class Person implements java.io.Serializabl
e private String nome ... public
Person(String nome, ) this.nome
nome public String getNome()
return nome
Refactoring (evolution)
Class X public String getNome()
return nome
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User-defined transformations

• Using an extension of Java with metaprogramming
  constructs
• more accessible to Java programmers
• semantic-based pattern-matching
• more expressive than templates

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Transformation language
Metavariable
ML class BT ltltextends SBTgtgt ATTRS MTDS
public void X.addPrefix("set") (D
obj) DN obj ...
Optional matching
Executable expressions
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User-defined wizards

• Interactive support for applying transformations
• Integrated with IDEs
• Framework and model for
• associating transformations with their GUIs (Java
  beans)
• creating new generators and refactorings

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Practical experience

• Code generators and refactorings for
• working with EJB
• implementing specific design patterns
• It is easy to create new wizards
• Comprehensive set of code analysis for
  refactorings
• Composition of wizards

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Integrating Code Generation and Refactoring
Amorim, Nogueira, Santos, Souza, Paulo Borba

• Qualiti Software Processes and
• Informatics Center, Federal University of
  Pernambuco
• Recife, Brazil

www.qualiti.com.br
www.cin.ufpe.br