Re: [jbosstools-dev] Re: [Bug 257470] ComponentCore in WTP 3.0.3 isn't compatible with earlier 3.0.x versions

The same patch I proposed to you two weeks ago http://lists.jboss.org/pipermail/jbosstools-dev/2008-December/002525.html

Snjeza Denny Xu wrote: > WTP team suggested the way to create VirtualComponent, so should I > get the changes applied to CR1 branch? > It seems that they would not like to recover the behavior > "ComponentCore.createComponent(project)" method. > > Denny > > > bugzilla-daemon(a)eclipse.org wrote: >> https://bugs.eclipse.org/bugs/show_bug.cgi?id=257470 >> Product/Component: WTP Common Tools / wst.common >> >> >> >> >> --- Comment #12 from Carl Anderson <ccc(a)us.ibm.com&gt; 2008-12-18 >> 16:30:58 -0400 --- >> As per Max's comment #4, in the scenario where developers wish to call >> VirtualComponent.create(int, IProgressMonitor) to create the >> appropriate >> component file, the following code is acceptable: >> >> VirtualComponent c = ComponentCore.createComponent(project); >> if(c==null) { >> c = ComponentCore.createComponent(project, false); >> } >> c.create(0, null); >> >> This code should work properly if it is compiled against WTP 3.0.3 >> (or later), >> and should run properly against all WTP 3.0.x versions. >> >> Now, what would not be advisable would be for developers to replace >> every >> previous instance of: >> >> VirtualComponent c = ComponentCore.createComponent(project); >> >> with: >> >> VirtualComponent c = ComponentCore.createComponent(project); >> if(c==null) { >> c = ComponentCore.createComponent(project, false); >> } >> >> as that would once again open up the same hole for possible component >> corruption that was closed down by bug 250004. The problem that was >> occurring, >> as stated in comment #5, was that, in some scenarios, access to the >> VirtualComponent through ComponentCore.createComponent(project), >> (which come >> from many adopters as well as WTP code) where it was not checking >> for the >> existance of the component file was causing the creation of an empty >> component >> model , thus causing the appearance of an inconsistent files dialog and >> component corruption. Therefore, in all scenarios other than the >> initial >> component creation scenario (which is the only scenario broken by >> the change in >> bug 250004), WTP code and adopters should call either >> ComponentCore.createComponent(project) or >> ComponentCore.createComponent(project, true). >> >> >> > > _______________________________________________ > jbosstools-dev mailing list > jbosstools-dev(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/jbosstools-dev >