@Override protected IProject[] build(int kind, Map<String, String> args, IProgressMonitor monitor) throws CoreException { if (kind == AUTO_BUILD || kind == INCREMENTAL_BUILD) { ChangeDetector visitor = new ChangeDetector(genmodelProvider.getGeneratorModelPath(getProject())); getDelta(getProject()).accept(visitor); if (visitor.isChangeFound()) { getProject() .accept( new IResourceVisitor() { @Override public boolean visit(IResource resource) throws CoreException { final String extension = resource.getFileExtension(); if ("vql".equals(extension)) { resource.touch(new NullProgressMonitor()); } return false; } }); } } return null; }