[news.eclipse.tools.gef] Re: Please Help!!!

["CL [dnoyeb] Gilbert" <Lamont_Gilbert@xxxxxxxxxxxxxxxxx>]

try what I said.

Jose wrote:
> Hi all,
>
>   I have tried what Gunay said, but it doesn't work. This is the code 
> for the getConnectionCreateCommand and getConnectionCompleteCommand 
> methods:
>
>    protected Command getConnectionCompleteCommand(
>             CreateConnectionRequest request) {
>        

	target = request.getSourceEditPart();
        source = request.getTargetEditPart();


         if(!sanityCheck(source,target)) {
               return UnexecutableCommand.INSTANCE;
          }


>         ModelObject model = (ModelObject) getHost().getModel();
>        
>         if(model==null){
>             return null;
>         }
>         else{
>             ConnectionCommand command = (ConnectionCommand) request
>             .getStartCommand();
>             command.setTarget(getJCLECSubpart());
>             ConnectionAnchor ctor = 
> getJCLECEditPart().getTargetConnectionAnchor(
>                     request);
>             if (ctor == null)
>                 return null;
>             command.setTargetTerminal(getJCLECEditPart()
>                     .mapConnectionAnchorToTerminal(ctor));
>             return command;
>         }
>     }

also do sanity check for
getReconnectTargetCommand and getReconnectSourceCommand


>     protected Command getConnectionCreateCommand(CreateConnectionRequest 
> request) {
>        
>         ModelObject model = (ModelObject) getHost().getModel();
>        
>        
>         if(model == null){
>             return null;
>         }
>         else{
>             ConnectionCommand command = new ConnectionCommand();
>             command.setConnection(new Arrow());
>             command.setSource(getJCLECSubpart());
>             ConnectionAnchor ctor = 
> getJCLECEditPart().getSourceConnectionAnchor(
>                     request);
>             command.setSourceTerminal(getJCLECEditPart()
>                     .mapConnectionAnchorToTerminal(ctor));
>             request.setStartCommand(command);
>             return command;
>         }
>     }
>
>
>   Why it doesn't work? Please, help me. Thankyou very much.
>
>   --Jose


public boolean sanityCheck(Node source, Node target){
    if(source.getModel().hasConnection()){
         return false;
    }
    if(target.getModel().hasConnection()){
          return false;
   }
}


This is the gist of what I do.  ask your nodes if they already have 
connections, and if so, just return false;



CL