- public BasicBinaryDomainCombination( final String id_0, final String id_1 ) {
- if ( ( id_0 == null ) || ( id_1 == null ) ) {
+ private String getAsStr() {
+ return _id0 + SEPARATOR + _id1;
+ }
+
+ public BasicBinaryDomainCombination( final String id0, final String id1 ) {
+ if ( ( id0 == null ) || ( id1 == null ) ) {