Re: [bpel-dev] Bug of copy/paste the node has children nodes

[grovecai <grovecai@xxxxxxxxx>]

Hi Bob,

You are welcome!
When you find something, please let me know.

Thanks!
grovecai

On 2012年06月21日 23:32, Bob Brodt wrote:
> Hi grovecai,
>
> Hmm, this looks very strange indeed. It's almost as if a recursive algorithm doesn't know when to stop, and it's copying the elements in reverse order somehow. I haven't looked at that code yet, but I see you've already reported it here [1] - thanks for that :)
>
> Cheers!
> Bob
>
> [1] https://bugs.eclipse.org/bugs/show_bug.cgi?id=383169
>
>
>
> ----- Original Message -----
> > Hi, guys.
> > I need help to fix a bug. The following is about bug and some
> > exploration.
> > When copy and paste the node has children node, pasting action
> > produces
> > redundant children nodes.
> > For example, if you copy node like :
> >
> > <bpel:if name="If">
> >       <bpel:sequence>
> >           <bpel:invoke name="Invoke"/>
> >       </bpel:sequence>
> >       <bpel:elseif/>
> >       <bpel:elseif/>
> > </bpel:if>
> >
> > when you paste it, you may got this:
> >
> > <bpel:if name="If3">
> >       <bpel:sequence>
> > 	<bpel:invoke name="Invoke"></bpel:invoke>
> >       </bpel:sequence>
> >
> >       <bpel:elseif></bpel:elseif>
> >       <bpel:elseif></bpel:elseif>
> >       <bpel:elseif></bpel:elseif>
> >       <bpel:elseif></bpel:elseif>
> >
> >       <bpel:sequence>
> > 	<bpel:invoke name="Invoke"></bpel:invoke>
> >       </bpel:sequence>
> >
> >        <bpel:elseif></bpel:elseif>
> >
> >       <bpel:sequence>
> >          <bpel:invoke name="Invoke"></bpel:invoke>
> >       </bpel:sequence>
> >
> > </bpel:if>
> >
> > You may not get the same result in every copying and pasting
> > operation.
> > The result is not expected. I try to fix the bug, so I explore the
> > BPELCopyAction and BPELPasteAction in package
> > org.eclipse.bpel.ui.actions. At first, I thought the problem may
> > have connection with BPELPasteCommand in package
> > org.eclipse.bpel.ui.commands. The related code is BPELPasteCommand's
> > doExcute() method, here is the code:
> >
> > 	public void doExecute() {
> > 		TransferBuffer transferBuffer = fBpelEditor.getTransferBuffer();
> > 		fPastedObjects  = transferBuffer.copyTransferBuffer(fTargetObject,
> > 		fBpelEditor.getExtensionMap(),fReference );
> > 	}
> >
> > After I read the code of the method
> > TransferBuffer.copyTransferBuffer, I found the method copy the
> > source node model to the target node model. I thought the model
> > copying may cause this bug. But after explore detail in
> >   TransferBuffer.copyContentsTo method, I found the there is nothing
> > wrong in model copying, or I missed something? If the model copying
> > is right, may be problem arise when model being serialized to xml. I
> > cannot find the relative code, any hints may be help.
> > Thanks!
> >
> > grovecai
> >
> >
> >
> > _______________________________________________
> > bpel-dev mailing list
> > bpel-dev@xxxxxxxxxxx
> > https://dev.eclipse.org/mailman/listinfo/bpel-dev
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