public <X> Subgraph<X> addSubgraph(String attributeName, Class<X> type) {
checkMutability();
final SubgraphImpl<X> subgraph = attributeDelegate.buildSubgraph(attributeName, type);
addNode(subgraph);
return subgraph;
}
public <X> Subgraph<? extends X> addSubgraph(Attribute<T, X> attribute, Class<? extends X> type) {
checkMutability();
final SubgraphImpl<? extends X> subgraph = attributeDelegate.buildSubgraph(attribute, type);
addNode(subgraph);
return subgraph;
}
@SuppressWarnings("unchecked")
public <X> Subgraph<X> addSubgraph(String attributeName) {
checkMutability();
final SubgraphImpl<X> subgraph = attributeDelegate.buildSubgraph(attributeName);
addNode(subgraph);
return subgraph;
}