engine.search(fWorkspace, fStringPattern, fSearchFor, fLimitTo, fScope, fCollector);
engine.search(fWorkspace, engine.createSearchPattern(fStringPattern, fSearchFor, fLimitTo, fIsCaseSensitive), fScope, fCollector);
	protected void execute(IProgressMonitor monitor) throws CoreException {		fCollector.setProgressMonitor(monitor);		SearchEngine engine= new SearchEngine();		if (fElementPattern != null)			engine.search(fWorkspace, fElementPattern, fLimitTo, fScope, fCollector);		else			engine.search(fWorkspace, fStringPattern, fSearchFor, fLimitTo, fScope, fCollector);	}