Re: [jdt-debug-dev] javamethodbreakpoint trace

["Jago Westmacott" <jago.westmacott@xxxxxxxxxxxxxx>]

Hi Darin,

Apologies and thanks for the reply.  I guess my question was that, how
can i programmatically get the instance id of the object whose method
is being invoked from the breakPointHit(IJavaThread thread,
IJavaBreakpoint breakpoint) method?  is it anyway possible to do this
backwards - as an alternative to adding an instance specific method
breakpoint? Many thanks - Jago

On Dec 4, 2007 1:45 PM, Darin Wright <Darin_Wright@xxxxxxxxxx> wrote:
>
> This sort of question should really be posted on the news groups rather than the developer mailing list...
>
> The variables view shows an instance id for each object (you may need to turn on the instance id column). You could step over the creation of each object to see what instance id is assigned to each object. You can also set breakpoints to be object/instance specific by selecting the variable (object) in the variable view and using the "instance breakpoints..." action.
>
> Darin Wright
>
>
>
> "Jago Westmacott" <jago.westmacott@xxxxxxxxxxxxxx>
> Sent by: jdt-debug-dev-bounces@xxxxxxxxxxx
>
> 12/03/2007 03:38 PM
>
> Please respond to
> "Eclipse JDT Debug developers list." <jdt-debug-dev@xxxxxxxxxxx>
>
>
> To jdt-debug-dev@xxxxxxxxxxx
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> cc
>
> Subject [jdt-debug-dev] javamethodbreakpoint trace
>
>
>
>
>
>
>
>
> Hi,
> I'd be grateful for any help with the following:
> Say I put a JavaMethodBreakpoint on java.util.Vector's .setSize() method, create several instances of a Vector
> and call the .setSize() method on each instance in some sample code that is run.  My BreakPointListener gets notified every method call, but how can I discover which Vector's instance's method was called?  Simplistic example:
> Vector v1 = new Vector();
> Vector v2 = new Vector();
> v1.setSize(1);
> v2.setSize(2);
> With the above lines of code, how can i tell from my breakpointHit method if the event is occurring on v1 or v2 instance of Vector?
> I had some luck with looking up line numbers via the stack frames, but haven't managed to get reliable or consistent results (and it feels wrong).
> Many thanks
>
>
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