Eclipse Community Forums: Java Development Tools (JDT) » Modify TypeDeclaration (class) with AST

Help

Home

Home » Language IDEs » Java Development Tools (JDT) » Modify TypeDeclaration (class) with AST

Show: Today's Messages :: Show Polls :: Message Navigator

Modify TypeDeclaration (class) with AST [message #1062921]

Tue, 11 June 2013 11:58

michel Labarre

Messages: 7
Registered: July 2009

Junior Member

Hello
I want to add a SUPER_INTERFACE_TYPE on a TYPE_DECLARATION.
ie : I have a source java code with
public class Foo{...
and I want modify it with
public class Foo implements IBar {....

With a Visitor on TYPE_DECLARATION, I retrieve the good Node but I have not fount the correct method to add a SUPER_INTERFACE_TYPE to the ASTNode.

Can you help me?

Many thanks

Report message to a moderator

Re: Modify TypeDeclaration (class) with AST [message #1062931 is a reply to message #1062921]

Tue, 11 June 2013 13:02

Stephan Herrmann

Messages: 1853
Registered: July 2009

Senior Member

the naive approach would be to call

typeDecl.superInterfaceTypes().add(newTypeNode);

Whether or not that is what you need depends on the context of this operation: when implementing a refactoring-like operation that should be written back into the source file you may need a snippet like this:

ASTRewrite rewrite= ASTRewrite.create(ast);
ListRewrite superInterfaces = rewrite.getListRewrite(typeDecl, TypeDeclaration.SUPER_INTERFACE_TYPES_PROPERTY);
superInterfaces.insertLast(newTypeNode, editGroup);

If your unfamiliar with JDT's ast rewriting you should have a look at the javadoc of class ASTRewrite for a start.

HTH,
Stephan

Report message to a moderator