public List<BinaryDomainCombination> toBinaryDomainCombinations() {
final List<BinaryDomainCombination> binary_combinations = new ArrayList<BinaryDomainCombination>( getNumberOfCombinableDomains() );
for( final String domain : getCombiningDomains().keySet() ) {
public List<BinaryDomainCombination> toBinaryDomainCombinations() {
final List<BinaryDomainCombination> binary_combinations = new ArrayList<BinaryDomainCombination>( getNumberOfCombinableDomains() );
for( final String domain : getCombiningDomains().keySet() ) {