public boolean hasComputers(String partition) { List descriptors= fRegistry.getProposalComputerDescriptors(partition);
public boolean hasComputers() { List descriptors= fRegistry.getProposalComputerDescriptors();
	public boolean hasComputers(String partition) {		List descriptors= fRegistry.getProposalComputerDescriptors(partition);		for (Iterator it= descriptors.iterator(); it.hasNext();) {			CompletionProposalComputerDescriptor desc= (CompletionProposalComputerDescriptor) it.next();			if (desc.getCategory() == this)				return true;		}		return false;	}